Fact-checked by Grok 2 weeks ago

Electromagnetic catapult

An electromagnetic catapult is a propulsion system that utilizes electromagnetic linear motors to accelerate or projectiles along a track to achieve takeoff velocity, replacing mechanical or steam-based mechanisms with solid-state electrical energy conversion for enhanced control and efficiency. The technology operates on principles akin to railguns, employing stored in flywheels or capacitors to generate precise profiles tailored to and requirements, thereby minimizing structural compared to abrupt steam-driven launches. The Electromagnetic Aircraft Launch System (EMALS), engineered by Electromagnetic Systems Group primarily for the U.S. Navy's Gerald R. Ford-class supercarriers, exemplifies this advancement, enabling launches of diverse payloads from lightweight unmanned aerial vehicles to heavy fighter jets like the F-35C with cycle times as short as 45 seconds. Key attributes include reduced deck footprint, lower maintenance demands due to fewer , and integration with advanced for full operational synergy, though initial implementations encountered reliability hurdles during shore-based and at-sea trials that necessitated iterative engineering refinements. First achieving full-speed shipboard launches aboard (CVN-78) in 2016, EMALS has since supported sustained carrier operations, underscoring its role in modernizing amid escalating global competition, including parallel developments in systems for platforms like China's Type 003 carrier.

Technical Principles

Operating Mechanism

The electromagnetic catapult, exemplified by the (EMALS), employs a linear synchronous motor as its core operating mechanism. This consists of a series of stator coils integrated into the launch track, which generate sequential electromagnetic fields when supplied with high-power electrical pulses. A attached to the aircraft's nose features components—such as conductive or magnetic elements—that interact with these fields via Lorentz forces, producing linear to accelerate the aircraft along the track. Power delivery originates from stored in flywheel-based systems or similar reservoirs, converted to through disk alternators and cycloconverters. These supply variable-frequency electricity to the stators, creating a traveling magnetic wave that maintains with the shuttle's position and speed, enabling efficient across the approximately 300-foot length without the inefficiencies of slip inherent in designs. A closed-loop governs the process, using sensors to monitor velocity, position, and load in , dynamically adjusting voltage and frequency for tailored profiles. This allows launches of weighing from 14,500 to pounds to takeoff speeds exceeding 150 knots, with greater than alternatives.

Key Components and Power Requirements

The Electromagnetic Aircraft Launch System (EMALS) integrates multiple subsystems to facilitate precise electromagnetic acceleration of aircraft from carrier decks. Central to its operation is the launch motor subsystem (LMS), featuring a linear induction motor with stator coil packs embedded in the catapult track; these generate a progressive magnetic field that propels a shuttle carrying the aircraft to takeoff speeds. Complementing this is the power conversion subsystem (PCS), a solid-state assembly that conditions electrical output by regulating voltage and frequency to match the shuttle's velocity profile, ensuring efficient energy transfer without mechanical intermediaries. The energy storage subsystem (ESS) employs flywheel-based motor-generators to accumulate kinetic energy, discharging it rapidly during launches while mitigating peak loads on the ship's grid. Additional components include the prime power interface subsystem (PPIS), which interconnects EMALS with the carrier's electrical distribution for steady recharging, and the launch control system, incorporating consoles and sensors for real-time monitoring, feedback control, and programming tailored to aircraft mass and wind conditions. These elements collectively enable four catapults to share resources, enhancing redundancy and efficiency on vessels like the (CVN-78), commissioned in 2017. EMALS demands substantial electrical input, with the delivering up to 60 megajoules of stored energy and peak output of 60 megawatts sustained for about 3 seconds per launch cycle. Recharging occurs via the ship's multimegawatt generators, drawing averaged power in the range of several megawatts over a 45-second interval to restore capacity without overloading propulsion or other systems. This pulsed operation contrasts with continuous steam systems, necessitating advanced to handle high transient currents and voltages while maintaining system reliability.

Historical Development

Early Concepts and Research

The concept of electromagnetic catapults for launch originated during , when the Corporation developed the "Electropult," a linear induction motor-based system designed to propel without mechanical pistons or steam. This device employed electromagnetic forces to generate thrust along a track, aiming to address limitations of early compressed-air and hydraulic catapults that struggled with heavier postwar . The Electropult successfully launched weighing up to 4.5 tonnes, demonstrating feasibility in controlled tests. In October 1946, publicly unveiled and tested the Electropult at the Naval Air Engineering Center, where it achieved 50 kN of to accelerate loads to 60 m/s over a short stroke, powered by approximately 3 MW but with efficiency below 50 percent due to electrical losses and material constraints of the era. Despite these demonstrations, the system faced abandonment by the late , as the parallel maturation of catapults—first operationally successful in the British in 1950 and adopted by the U.S. in 1954—offered higher reliability, lower developmental costs, and compatibility with existing infrastructure powered by systems. Interest in electromagnetic alternatives resurfaced in the amid growing demands for precise launches of diverse types, including those with sensitive intolerant to steam's variable profiles. The U.S. Naval Air Engineering Center initiated exploratory studies into non-contact linear motors, collaborating with the Center for at the University of Texas at Austin (CEM-UT), which proposed asynchronous induction designs to eliminate wear-prone sliding contacts. By 1981, the Naval Air Engineering Center formally reopened investigations into electromagnetic catapults, focusing on scalability for carrier decks. CEM-UT researchers, including W. F. Weldon and M. D. Driga, developed a 12-foot subscale prototype in the early capable of 5-g for an 18,000-pound load, validating delivery via homopolar generators and banks for short-duration thrusts. These efforts culminated in a CEM-UT simulating a Nimitz-class subscale, emphasizing and variants to optimize energy transfer efficiency over steam's thermodynamic inefficiencies. highlighted electromagnetic systems' potential for adjustable waveforms to reduce —achieving end speeds of 150 knots with peak accelerations as low as 2-4 —but persistent challenges in high-power , thermal management, and integration with shipboard generators limited progress to conceptual and bench-scale validations by the . Funding priorities shifted toward refining steam technology until the late , when carrier modernization programs revisited electromagnetic viability for future all-electric architectures.

United States EMALS Program

The (EMALS) program, initiated by the as part of the CVN-21 initiative to modernize capabilities, awarded a five-year, $145 million contract on April 5, 2004, for system development and demonstration to replace legacy steam catapults with electromagnetic technology. This effort aimed to enable precise launches of a broader range of aircraft, from lightweight unmanned systems to heavy strike fighters, using solid-state electrical power conversion and storage for improved efficiency and reduced maintenance. Key milestones included the completion of the first full-scale aircraft launch on December 18, 2010, when an F/A-18E Super Hornet was propelled from a land-based test site at , validating the linear induction motor's performance under operational conditions. In June 2009, received a production contract for EMALS integration on (CVN 78), the lead ship of the Ford-class carriers, with initial installation occurring around 2015. Subsequent sea-based testing on CVN 78 began during post-shakedown trials, achieving over 8,000 launches by April 2021 and surpassing 10,000 combined launches and recoveries with the Advanced Arresting Gear by July 2022, demonstrating progressive reliability gains despite early technical hurdles. The program encountered significant cost overruns and schedule delays, scrutinized in a July 16, 2009, that highlighted technical challenges in scaling the system from prototypes to carrier integration, contributing to broader Ford-class program setbacks. Initial projections of lower lifecycle costs and manpower requirements were undermined by these issues, though operational data from CVN 78 indicates smoother acceleration, reduced aircraft stress, and higher generation rates compared to steam systems once matured. In June 2023, secured a $1.2 billion contract modification to equip future Ford-class carriers, including (CVN 81), underscoring ongoing commitment amid resolved integration challenges.

International Adaptations and Parallel Developments

has pursued an independent parallel development of electromagnetic catapult technology, achieving operational milestones ahead of several Western programs. The (PLAN) successfully conducted electromagnetic catapult-assisted takeoffs and arrested landings aboard the CNS on September 22, 2025, marking the first such operations for a non-U.S. carrier. This included launches of the J-35 stealth fighter, J-15T fighter, and KJ-600 airborne early warning aircraft, demonstrating compatibility with advanced fixed-wing platforms. , commissioned in 2024, features domestically developed EMALS integrated with a flat , enabling higher rates and precise launch control compared to ski-jump configurations on prior Chinese carriers. Parallel efforts include testing on the Type 076 for drone operations, with electromagnetic catapults observed in trials as of October 2025. France has adapted U.S.-origin electromagnetic catapult technology for its naval requirements, opting for procurement rather than indigenous development. In 2022, the French Navy awarded a contract to Electromagnetic Systems for EMALS components tailored to the future Porte-Avions Nouvelle Génération (PA-NG) carrier, expected to enter service in the 2030s. By October 2025, plans advanced to acquire a third catapult track, supporting a design with three catapults for enhanced launch capacity and with Rafale-M fighters. This adaptation leverages proven U.S. to replace steam catapults on the retiring , prioritizing reliability and reduced maintenance over full domestic redesign. Russia has initiated parallel research into electromagnetic catapults since at least 2017, targeting integration on prospective nuclear-powered carriers under Project 23000. The began development of an electromagnetic launch system, aiming for compatibility with navalized Su-57 fighters and higher launch energies than steam alternatives. Proposed designs incorporate dual electromagnetic catapults alongside ski-jump ramps for hybrid operations, though progress has been limited by budgetary constraints and the ongoing conflict, with no confirmed sea trials as of 2025. These efforts reflect a strategic shift from systems but remain conceptual, lacking the operational validation seen in Chinese programs.

Advantages and Performance Characteristics

Superiority Over Steam Catapults

Electromagnetic catapults provide superior launch precision compared to steam catapults by enabling programmable acceleration profiles that adjust in to weight and type, achieving end-speed control within approximately 1 accuracy. This precision reduces stress, particularly for lighter , extending structural life and supporting unmanned aerial vehicles (UAVs) that steam systems struggle to launch consistently. EMALS expands the launch envelope to accommodate both heavier payloads and lighter , with capabilities for up to 100,000 pounds, surpassing catapult limits that require fixed stroke lengths and result in inefficient launches for non-optimal weights. The system eliminates generation components, reducing deck space by approximately 50% and weight by 25-30%, while cutting manpower needs through automated diagnostics and fewer mechanical parts. Operational efficiency improves with higher reliability—designed for over 4,000 mean cycles between operational mission failures versus steam's historical rates—and integration with plants, avoiding steam losses and enabling faster reset times between launches. is simplified via intuitive software that halves times, and the system operates quieter and cooler, enhancing conditions without the heat and noise of steam vents. These attributes collectively support increased sortie generation rates, targeting 160-270 per day on Ford-class carriers compared to Nimitz-class steam systems' 120-140.

Launch Precision and Aircraft Compatibility

The (EMALS) achieves superior launch precision through a closed-loop mechanism that continuously monitors and adjusts the profile in , delivering a smooth and flat application unlike the abrupt onset of catapults. This control enables 100% precise end speeds and customizable profiles tailored to individual parameters, minimizing deviations and ensuring consistent performance across launches. By modulating electromagnetic incrementally, EMALS reduces peak stresses on airframes, with smoother profiles that extend structural longevity compared to the higher g-forces of traditional systems. EMALS enhances compatibility by supporting a wide range of masses, from lightweight unmanned aerial vehicles to heavy strike fighters up to 45,000 kg, with adjustable launch speeds spanning 100 to 370 km/h. Computer algorithms dynamically scale thrust to match weight—such as the 57,500-pound E-2 Hawkeye—preventing over-acceleration for lighter assets or insufficient velocity for heavier ones, a limitation of catapults' fixed power delivery. This adaptability accommodates diverse naval air wings, including early-warning and future unmanned systems, while maintaining end speeds up to 130 knots for fully loaded platforms exceeding 100,000 pounds. Overall, the system's precision and flexibility broaden operational envelopes without requiring multiple catapult variants.

Challenges and Criticisms

Reliability and Technical Hurdles

The Electromagnetic Aircraft Launch System (EMALS) installed on the USS Gerald R. Ford (CVN-78) has demonstrated reliability metrics substantially below Navy design goals. During operational testing from March to June 2022, EMALS achieved approximately 600 cycles between operational mission failures, compared to the program's target of over 4,000 cycles. Earlier assessments reported an average failure rate of one in 240 cycles, highlighting persistent shortcomings relative to legacy steam catapults, which routinely exceed thousands of cycles without failure. These deficiencies have directly limited aircraft sortie generation rates, with the Ford class unable to match the sustained operational tempo of Nimitz-class carriers. Technical hurdles stem primarily from the system's complex and components. Faults in EMALS power-handling elements, including waveform generators and conversion subsystems, caused multi-day disruptions to flight operations during sea-based testing in June 2020. Integration challenges with the ship's Advanced Arresting Gear and have exacerbated issues, as high-energy pulses demand precise synchronization and fault-tolerant redundancies that have proven difficult to achieve in a maritime environment. Maintenance requirements further compound problems; EMALS relies on flywheel-based that necessitates shore-based overhauls for major repairs, limiting at-sea recoverability and increasing downtime during deployments. As of 2025, Department of Operational Test and Evaluation reports confirm that EMALS reliability and maintainability continue to hinder full mission capability, with ongoing efforts focused on improved data collection and component hardening yet to fully resolve systemic vulnerabilities. These challenges arise from the inherent complexity of —requiring millisecond-precision control of megawatt-level pulses—contrasting with the mechanical robustness of systems refined over decades. Despite software updates and hardware modifications, the system's remains inadequate for high-tempo combat scenarios, prompting scrutiny from congressional oversight bodies.

Cost Overruns and Operational Delays

The development of the (EMALS) encountered substantial cost growth, with program expenses escalating to nearly $1 billion—approximately the original estimates—due to challenges in scaling from prototypes to full operational capability. These overruns were attributed in part to an aggressive testing schedule that underestimated technical complexities in the technology and power conditioning systems. in 2009 highlighted additional increases from design modifications, though not the primary driver of the breach. EMALS integration contributed to broader cost escalations in the (CVN-78) program, where lead-ship procurement costs rose 23 percent from baseline estimates, reaching $12.9 billion by 2017 amid parallel development of advanced systems. The program triggered Nunn-McCurdy breaches, prompting Department of Defense reviews that certified continuation despite the growth, as EMALS was deemed essential for achieving higher rates and reduced stress compared to catapults. Overall Ford-class development costs increased 16.9 percent to $6.6 billion, with procurement up 18.8 percent to $43.3 billion through 2022, reflecting persistent integration hurdles. Operational delays stemmed from EMALS reliability shortfalls during shore-based and at-sea testing, including intermittent faults in launch sequencing and energy storage that fell below required mean cycles between failures. These issues deferred full EMALS validation, pushing CVN-78 delivery from 2015 to May 2017 and initial operational capability to 2021, as concurrent ship construction amplified risks from unproven technologies. Follow-on ships like CVN-79 and CVN-80 faced similar setbacks, with delivery timelines slipping by up to two years into the late 2020s due to lingering first-of-class refinements in EMALS and related systems. By 2025, while EMALS had achieved basic functionality, GAO assessments noted ongoing schedule variances in Ford-class sustainment, underscoring the causal link between early optimism in technology maturation and protracted naval readiness gaps.

National Programs

United States

The Navy's Electromagnetic Aircraft Launch System (EMALS) represents the primary electromagnetic catapult program, developed by for integration into the Ford-class carriers. EMALS employs linear induction motors to accelerate aircraft along the catapult track, enabling launches with variable acceleration profiles tailored to different aircraft weights and types, from lightweight unmanned systems to heavy fighters. The system was selected in the early as part of the CVN-21 program, which evolved into the Gerald R. Ford-class, with initial contracts awarded for prototype development in 2005 and full-scale engineering in 2007. EMALS first entered operational testing aboard (CVN-78), commissioned on July 22, 2017, after construction began in 2005 at . The carrier achieved initial operational capability in December 2021 following post-shakedown availability, but EMALS reliability fell short of requirements during sea trials and early deployments. In fiscal year 2023, CVN-78 completed its first major deployment, a 262-day operation ending in January 2024, during which EMALS supported flight operations despite ongoing maintenance needs. By mid-2025, the carrier resumed operations in the Mediterranean before redirecting to the , logging over 1,000 EMALS launches cumulatively. Subsequent Ford-class vessels, including USS John F. Kennedy (CVN-79), launched in 2019 and slated for delivery in 2025, incorporate refined EMALS units based on lessons from CVN-78. Reliability challenges persist across the class, with mean time between operational mission failures for EMALS reported below targets, contributing to reduced generation rates—averaging 120-140 sorties per day versus the designed 160-270. The Department of Defense's Director of Operational Test & Evaluation (DOT&E) has cited issues with component and fault isolation during flight operations, prompting part replacements and software updates as recently as 2023. Despite these hurdles, the continues EMALS integration for CVN-80 and beyond, viewing it as essential for future carrier capabilities amid total program costs exceeding $13 billion for CVN-78 alone, partly attributable to advanced systems like EMALS.

China

China's electromagnetic aircraft launch system (EMALS) represents an independent development effort by the People's Liberation Army Navy (PLAN), distinct from foreign technologies, and is primarily deployed on the Type 003-class aircraft carrier Fujian. The Fujian, launched on June 17, 2022, at Jiangnan Shipyard in Shanghai, is the third carrier in China's fleet and the first equipped with EMALS, featuring three catapults along its full-length flight deck to support catapult-assisted take-off but arrested recovery (CATOBAR) operations. This configuration displaces approximately 80,000 tons fully loaded and enables the carrier to operate a broader range of fixed-wing aircraft, including heavier loads of fuel and weapons compared to the ski-jump-equipped Type 001 Liaoning and Type 002 Shandong. Sea trials for the Fujian commenced in 2024, with EMALS testing progressing to manned aircraft launches by September 2025, when official footage demonstrated successful electromagnetic catapult ejections of J-35 stealth fighters and KJ-600 early warning aircraft. These tests marked the first publicly confirmed use of EMALS with fifth-generation fighters outside the United States, allowing for launch intervals of around 45 seconds and precise control over acceleration to minimize aircraft stress. The system's linear induction motor design, powered by onboard energy storage, provides variable launch profiles tailored to aircraft weight and mission requirements, enhancing sortie generation rates over steam alternatives. Beyond carriers, has extended EMALS technology to amphibious platforms, with the Sichuan, launched in December 2023 and displacing over 40,000 tons, undergoing tests of a single EMALS unit for (UAV) launches as of October 2025. This integration positions the Sichuan as the world's first amphibious ship capable of electromagnetic drone catapults, potentially expanding PLAN's unmanned strike and surveillance options in littoral environments. Development details remain classified, but public demonstrations indicate operational maturity ahead of full commissioning, expected post-2025 integration trials.

Other Countries

France has announced plans to acquire (EMALS) technology for its forthcoming Porte-Avions Nouvelle Génération (PANG) , intended to replace the nuclear-powered by the early 2030s. As of October 2025, the intends to order a third EMALS catapult track to equip the vessel, building on initial procurements for compatibility with carrier operations involving heavier fixed-wing aircraft such as the Rafale M. This shift from the Charles de Gaulle's steam s reflects a modernization effort to enhance launch and reduce mechanical wear, with the system likely sourced from U.S. supplier under export agreements. India is evaluating EMALS integration for its planned INS Vishal nuclear-powered aircraft carrier, projected for commissioning in the mid-2030s as an upgrade over the conventionally powered INS Vikrant and Vikramaditya. In 2017, the United States offered EMALS technology to support the program, positioning India as a potential first export customer for the system. Recent assessments as of September 2025 highlight EMALS advantages in smoother acceleration for heavier payloads, aligning with India's ambitions for catapult-assisted take-off barrier-arrested recovery (CATOBAR) operations to deploy advanced fighters like the indigenous Twin Engine Deck Based Fighter. However, final adoption remains under review amid competing priorities for indigenous development and cost considerations. No other nations have publicly confirmed operational EMALS deployments or advanced procurement stages beyond exploratory interest. For instance, has pursued domestic carrier projects like the aborted but lacks documented EMALS progress, relying instead on ski-jump configurations for its Admiral Kuznetsov. Similarly, the abandoned EMALS concepts for its Queen Elizabeth-class carriers in favor of short take-off and vertical landing operations with F-35B aircraft, citing prohibitive expenses.

Operational Deployments

Commissioned Vessels

The USS Gerald R. Ford (CVN-78), lead ship of the Gerald R. Ford-class supercarriers, was commissioned by the U.S. Navy on July 22, 2017, marking the first operational deployment of an electromagnetic aircraft launch system (EMALS) on a commissioned vessel. EMALS on Ford utilizes linear induction motors to accelerate aircraft along four catapults, providing variable launch profiles tailored to aircraft weight and conditions, with a capacity for up to 160 sorties per day at full operational tempo once all systems integrate fully. Following initial at-sea testing in 2016–2017, which included the first shipboard full-speed EMALS launches of F/A-18E/F Super Hornets, the system achieved initial operational capability by 2021 after addressing early reliability concerns through software updates and hardware refinements. Ford's EMALS has supported sustained flight operations during multiple deployments, demonstrating compatibility with a range of fixed-wing aircraft including F-35C Lightning IIs and EA-18G Growlers. In 2023, the carrier completed its first full deployment to the U.S. 6th Fleet area, logging over 10,000 EMALS-assisted launches and recoveries without reverting to legacy steam systems. By 2025, Ford continued active service, transiting the in August and operating in the Mediterranean before redirection to the for counter-narcotics missions, underscoring EMALS's role in enabling high-tempo, precision launches under varied sea states. As of October 2025, Gerald R. Ford remains the sole commissioned vessel worldwide equipped with EMALS, with follow-on U.S. carriers like USS John F. Kennedy (CVN-79) undergoing shore-based and at-sea integration but not yet commissioned. China's Type 003 carrier Fujian, which has conducted EMALS launches of J-15 fighters and J-35 stealth prototypes during sea trials since March 2025, including fifth-generation aircraft recoveries in September 2025, has not entered commissioned service and continues trials toward potential induction later in the decade. No other navies operate commissioned EMALS-equipped vessels, though France has contracted for EMALS components for its planned post-2030 carrier replacement.

Testing and Sea Trials

The (EMALS) underwent initial land-based testing at facilities in , beginning in 2010, with over 1,000 launches of dead-load and live-aircraft simulations by 2014 to validate precision and energy management. During USS Gerald R. Ford's (CVN-78) builder's sea trials in 2015–2016, EMALS achieved its first shipboard aircraft launches, including F/A-18E/F Super Hornets, demonstrating variable launch profiles but revealing early software and hardware faults that required iterative fixes. A notable disruption occurred in June 2020 during post-refit trials off the U.S. East Coast, when an EMALS fault halted fixed-wing launches for five days, attributed to a power issue affecting the linear motor's synchronization. Full Ship Shock Trials (FSST) for CVN-78 in June–August 2021 off Jacksonville, Florida, tested EMALS resilience under near-miss explosions simulating combat damage, with the system maintaining operational integrity across three events and sustaining no mission-critical failures during subsequent launches. General Atomics reported EMALS met performance thresholds for launch reliability and precision under shock loads, validating its design for high-stress naval environments. However, independent assessments noted that while shock trials succeeded, cumulative testing data through 2021 indicated EMALS mean time between operational mission failures lagged behind requirements by a factor of five, prompting software upgrades and component redundancies ahead of initial operational capability certification in 2022. In parallel, China's Type 003 carrier commenced sea trials in May 2024 from , incorporating electromagnetic catapult testing as part of its integrated propulsion and launch validation phase. By 2023, preliminary dockside and pier-side tests of the catapult system were reported, focusing on power delivery from the carrier's . On September 22, 2025, state media released footage of successful at-sea EM catapult launches involving three aircraft types: the J-15T fighter (upgraded variant), J-35 stealth fighter prototype, and KJ-600 airborne early warning aircraft, confirming compatibility across weight classes up to 30 tons and launch energies exceeding 90 megajoules. These trials, conducted in the , emphasized rapid cycle times and precision holdback, though independent verification remains limited due to restricted access, with U.S. analyses suggesting potential reliability gaps in sustained operations untested publicly.

Strategic and Geopolitical Implications

The (EMALS) bolsters naval power projection by enabling aircraft carriers to generate higher volumes of sorties with greater precision and reliability compared to steam-based catapults. On the U.S. Navy's Gerald R. Ford-class carriers, EMALS supports a sustained sortie generation rate of 160 per day during 12-hour operations, with the potential to surge to 270 sorties, exceeding the Nimitz-class baseline of approximately 120-140 sustained sorties. This elevated operational tempo allows carrier strike groups to deliver more persistent air superiority, strike missions, and intelligence, surveillance, and reconnaissance (ISR) coverage over extended distances without reliance on forward bases. EMALS achieves this through electromagnetic linear motors that deliver up to 122 megajoules of launch —a 29% increase over steam catapults—while providing programmable acceleration profiles for smoother launches across low- and high-speed ends. This precision reduces structural wear by up to 50% in some configurations and accommodates variable payloads, enabling fighters like the F-35C to depart with fuller fuel and ordnance loads for deeper penetration strikes or longer loiter times. Such adaptability extends the effective radius of carrier air wings, enhancing deterrence and rapid response in regions like the where contested logistics challenge traditional . Integration with complementary systems, including the Advanced Arresting Gear (AAG), further amplifies these gains by shortening aircraft turnaround times and expanding compatibility to all current and projected naval fixed-wing assets, including unmanned aerial vehicles (UAVs). Reduced manpower needs—EMALS requires about one-third the crew of systems—and lower maintenance intervals minimize carrier vulnerability during surge operations, sustaining force projection over weeks-long campaigns. Official U.S. assessments confirm EMALS as critical to realizing these sortie targets, directly tying the technology to amplified warfighting endurance in peer-level conflicts.

Global Proliferation and Competitive Dynamics

The maintains the operational lead in electromagnetic catapult technology through the (EMALS) integrated into its Gerald R. Ford-class carriers, with the lead ship (CVN-78) achieving 8,725 successful launches during its 2023 deployment. Follow-on vessels, including USS John F. Kennedy (CVN-79) and USS Doris Miller (CVN-81), are slated for EMALS installation under contracts awarded to , reinforcing U.S. superiority in generation rates up to 25% higher than steam-powered predecessors. Despite early reliability challenges, such as intermittent failures, the system has matured through iterative testing and deployments. China has emerged as the second nation to deploy EMALS independently on its Type 003 carrier , which conducted successful catapult-assisted launches of J-15T fighters, stealth jets, and KJ-600 early-warning on September 22, 2025, during sea trials. This indigenous development, distinct from U.S. technology, positions as a peer competitor to Ford-class carriers in launch precision and compatibility, with additional testing underway on the Type 076 for drone operations as of October 2025. state media and analyses highlight EMALS as enabling higher rates and reduced wear on fixed-wing assets compared to ski-jump systems on earlier and carriers. Allied adoption remains limited but indicative of U.S. technology export as a strategic hedge. France has contracted General Atomics for EMALS tracks on its future PANG nuclear-powered carrier, with plans announced in October 2025 to procure a third track to support Rafale-M and future unmanned systems. India is pursuing EMALS for its planned INS Vishal carrier, though progress is stalled by U.S. export delays and propulsion decisions, potentially delaying commissioning beyond 2030. No verified EMALS programs exist in Russia, the United Kingdom, or other major navies, which continue relying on ski-jumps or non-catapult designs. Competitive dynamics underscore a U.S.- bipolar rivalry, with 's accelerated timeline—from concept to operational testing in under a decade—challenging U.S. qualitative edges through scale and integration of stealth platforms like the J-35. U.S. exports to allies like aim to distribute capabilities and counterbalance proliferation risks, but indigenous Chinese advances raise concerns over technology diffusion via or reverse-engineering, potentially eroding U.S. first-mover advantages in electromagnetic efficiency. This bifurcation drives naval dynamics, prioritizing EMALS for in contested regions like the , where carrier sortie surges directly correlate with deterrence credibility.

References

  1. [1]
    Electromagnetic Aircraft Launch System (EMALS) - NAVAIR
    EMALS uses stored kinetic energy and solid-state electrical power conversion. This technology permits a high degree of computer control, monitoring and ...
  2. [2]
    [PDF] Electromagnetic Aircraft Launching System - DTIC
    EMALS adopts an approach similar to an electromagnetic rail gun, in order to accelerate the shuttle that holds the aircraft. 14 By achieving a unifonn ...
  3. [3]
    Aircraft Launch and Recovery Systems - General Atomics
    EMALS uses electromagnetic technology to launch aircraft from the deck of naval aircraft carriers and offers significant benefits over current launch systems:.
  4. [4]
    [PDF] emals and aag - General Atomics
    Electromagnetic launch systems can be designed for a variety of platforms and are capable of launching a wide range of aircraft weights. F-35C Joint Strike ...
  5. [5]
    [PDF] A BRIEF REVIEW ON ELECTROMAGNETIC AIRCRAFT LAUNCH ...
    Abstract - This paper describes the basic design, advantages and disadvantages of an Electromagnetic Aircraft Launch. System (EMALS) for aircraft carriers of ...
  6. [6]
    Navy Announces Successful Test of Electromagnetic Catapult on ...
    Navy Announces Successful Test of Electromagnetic Catapult on CVN 78 ... WASHINGTON - The Navy conducted the first-ever, shipboard, full-speed catapult shots ...<|separator|>
  7. [7]
    CVA 002 aircraft carrier - Catapult - GlobalSecurity.org
    The device, known as an electromagnetic launch system, or electromagnetic catapult, was designed by Chinese engineers to assist planes taking off from aircraft ...
  8. [8]
    [PDF] Electromagnetic Launchers for Use in Aircraft Launch at Sea - DTIC
    May 12, 1998 · Among the reported disadvantages of the C13-1 are its excessive weight, its dependency on the ship's central steam plant, its volume, the large ...<|control11|><|separator|>
  9. [9]
    [PDF] The Analysis of Components, Designs, and Operation for Electric ...
    The linear synchronous motor takes the power from ... Doyle, M. R., Samuel, D. J., Conway, T., Klimowski, R. R., "Electromagnetic Aircraft Launch System. - EMALS, ...
  10. [10]
    Electromagnetic Aircraft Launch System (EMALS) Operations (Ops ...
    The MRTS 3D® EMALS application provides high fidelity operator and maintenance catapult system training for the Launch Control Officer (LCO) and Launch Control ...
  11. [11]
    Electromagnetic Aircraft Launch System - EMALS - GlobalSecurity.org
    Jan 8, 2017 · EMALS uses stored kinetic energy and solid-state electrical power conversion. This technology permits a high degree of computer control, ...Missing: mechanism | Show results with:mechanism<|control11|><|separator|>
  12. [12]
    [PDF] Design and Simulation of a Permanent-Magnet Electromagnetic ...
    The Westinghouse “Electropult,” developed during World. War II, is an aircraft-launching linear induction machine of this form [11]. The issue of the transfer ...
  13. [13]
    October 1946 - Westinghouse unveils the Electropult - The Engineer
    Oct 30, 2013 · Electro-magnetics to replace steam catapults would relieve the "Stoker" Branch of any ship of the need to supply mineral free water to heat up ...
  14. [14]
    Navy Chooses General Atomics for Electromagnetic Aircraft ...
    Apr 5, 2004 · San Diego, CA, 5 April 2004. General Atomics (GA) announces the award of a 5-year, $145-million contract with the Naval Air Warfare Center ...
  15. [15]
    Navy launches first aircraft using EMALS | NAVAIR
    Dec 20, 2010 · Photo 1: “The Electromagnetic Aircraft Launch System launches its first F/A-18E Super Hornet on Saturday Dec. 18 at Naval Air Engineering ...
  16. [16]
    General Atomics Completes First Aircraft Launch Using EMALS
    Dec 20, 2010 · As the EMALS prime contractor, GA was awarded a contract to produce the new catapult for CVN 78 in June 2009. The first components of the EMALS ...Missing: early | Show results with:early
  17. [17]
    EMALS and AAG reach 10,000 aircraft launches and recoveries
    Jul 5, 2022 · Electromagnetic Aircraft Launch System and Advanced Arresting Gear reached 10,000 aircraft launches and recoveries aboard USS Gerald R. Ford ( ...
  18. [18]
    [PDF] Oversight of the Electromagnetic Aircraft Launch System (EMALS)
    Jul 16, 2009 · The EMALS system is an electromagnetic catapult designed to use on the Ford class aircraft carriers. If the system delivers its full promised ...
  19. [19]
    General Atomics Wins $1.2B Contract for EMALS, AAG on Future ...
    Jun 7, 2023 · The builder of the electromagnetic catapults and advanced arresting gear used by the Navy's Ford-class aircraft carrier won a $1.19 billion contract.Missing: States | Show results with:States<|separator|>
  20. [20]
    Three types of aircraft complete electromagnetic catapult-assisted ...
    Sep 22, 2025 · The success showed that China's first domestically built catapult-equipped aircraft carrier has obtained electromagnetic catapult launch and ...
  21. [21]
    China Achieves Major Aircraft Carrier Breakthrough - Newsweek
    Sep 22, 2025 · Chinese military aircraft conducted electromagnetic catapult-assisted takeoffs and arrested landings aboard the aircraft carrier CNS Fujian.
  22. [22]
    Foreign media 'stunned, surprised' by aircraft carrier Fujian's ...
    Sep 25, 2025 · With the boost from electromagnetic catapults, the Fujian carrier formation can greatly expand its combat radius to cover as far as the second ...Missing: excluding | Show results with:excluding
  23. [23]
  24. [24]
    France buys General Atomics electromagnetic catapults for new ...
    Aug 23, 2022 · A contract has been awarded to General Atomics in order to develop electromagnetic catapults for France's new generation aircraft carrier.
  25. [25]
  26. [26]
  27. [27]
    Aircraft carrier electromagnetic catapult in development in Russia
    MOSCOW, September 16. /TASS/. Russia has started developing an electromagnetic catapult for new-generation aircraft carriers, a defense industry source told ...
  28. [28]
    Russia developing new launch catapults for aircraft carriers - TASS
    Russia's United Shipbuilding Corporation (USC) is developing new launch systems for warplanes based on aircraft carriers.
  29. [29]
    ​russia Shows Off Development of a Promising Electromagnetic ...
    Sep 2, 2022 · The minister of defense of the russian federation Sergei Shoigu revealed preparations to establish an experimental and training range for naval aviation.
  30. [30]
    Electromagnetic Aircraft Launching System: Do the Benefits ... - DTIC
    However, EMALS has come under some heavy scrutiny and intense criticisms due to cost overruns and schedule delays. The U.S. Navy has put large amounts of money ...
  31. [31]
    [PDF] EMALS & AAG
    » 100% precise EMALS end speeds. » 100% precise AAG stopping distances. » Smooth acceleration and deceleration reduces fatigue on aircraft and impact on ...<|separator|>
  32. [32]
    EMALS – launching aircraft with the power of the railgun
    Nov 18, 2015 · EMALS is a megawatt electric power system under development by General Atomics to replace the steam-driven catapults installed on US Navy aircraft carriers.Missing: mechanism | Show results with:mechanism
  33. [33]
    A High-Tech LaunchSystem for Carriers - IEEE Spectrum
    Jan 1, 2004 · It will accelerate aircraft weighing roughly 4500 to45 000 kg to launch speeds of 100 to 370 km/h, with a controlled deftness that the ...
  34. [34]
    EMALS: Learning to Launch | New England Wire Technologies
    EMALS is an Electromagnetic Aircraft Launch System using a linear induction motor (LIM) to launch aircraft, replacing steam catapults.
  35. [35]
    Report: Carrier USS Ford's Electromagnetic Systems Still Need Work
    Feb 6, 2023 · The Electromagnetic Aircraft Launch System (EMALS) was designed to be an ultra-reliable replacement for the steam catapult, the Navy's ...<|control11|><|separator|>
  36. [36]
    USS Gerald Ford EMALS Launching System Suffers Fault During ...
    Jun 8, 2020 · An unexpected fault in the power-handling elements of the Electromagnetic Aircraft Launch System (EMALS) affected flight operations for days.
  37. [37]
    [PDF] CVN 78 Gerald R. Ford-Class Nuclear Aircraft Carrier
    Feb 4, 2025 · testing of EMALS and AAG. This included some testing of the ship's industrial control systems. Between February and March. 2024, the Navy's ...<|control11|><|separator|>
  38. [38]
    [PDF] GAO-13-396, Ford-Class Carriers: Lead Ship Testing and Reliability ...
    Sep 5, 2013 · However, technical issues affecting the EMALS power interface and conversion systems, among other deficiencies, have slowed progress. The Navy's ...
  39. [39]
    USS Gerald R. Ford Now Operating in the Mediterranean - USNI News
    Jul 21, 2025 · The EMALS continues to have reliability issues. This is the biggest of the problems as they're not meeting targets and Ford had reportedly ...
  40. [40]
    Navy Ford (CVN-78) Class Aircraft Carrier Program - Congress.gov
    Sep 12, 2025 · The reliability and maintainability of CVN 78's EMALS and AAG continue to adversely affect sortie generation and flight operations, which ...
  41. [41]
    The (Common) Sense of Magnetic Catapults | EMALS
    Jun 8, 2018 · Yes, the EMALS program had serious development problems, drove lengthy program delays, cost nearly a billion dollars (three times the initial ...Missing: budget overruns
  42. [42]
    EMALS Cost Overruns Blamed On Aggressive Test Schedule
    Jul 22, 2009 · The U.S. Navy's Electromagnetic Aircraft Launch System (EMALS) will face close scrutiny as it heads toward full-scale testing, according to ...
  43. [43]
    Ford-Class Aircraft Carrier: Follow-On Ships Need More Frequent ...
    Jun 13, 2017 · However, as GAO has reported on extensively since 2007, the lead ship has experienced cost growth of nearly 23 percent, with a reduced ...
  44. [44]
    [PDF] CVN 78 Gerald R. Ford Class Nuclear Aircraft Carrier (CVN 78) - DTIC
    Mar 21, 2016 · Nunn-McCurdy Breaches. Current UCR Baseline. Explanation of Breach. EMALS will deliver and complete IOC as a component to the ship. The ship ...
  45. [45]
    Despite problems, GAO reports unit-cost decreases for carrier Ford ...
    Jun 9, 2022 · During that same period, development costs rose by 16.9% to USD6.6 billion and overall procurement costs rose by 18.8% to USD43.3 billion – both ...
  46. [46]
    [PDF] GAO-17-575, FORD CLASS AIRCRAFT CARRIER
    Jun 13, 2017 · However, as GAO has reported on extensively since 2007, the lead ship has experienced cost growth of nearly 23 percent, with a reduced ...
  47. [47]
    Report to Congress on Gerald R. Ford Aircraft Carrier Program
    Dec 19, 2024 · The Navy's FY2025 budget submission, which was submitted to Congress in March 2024, shows the ship's scheduled delivery date as September 2029, ...
  48. [48]
    U.S. Navy Shipbuilding Is Consistently Over Budget and Delayed ...
    Apr 8, 2025 · The Navy's shipbuilding programs being consistently over budget and behind schedule. Estimated delays for some ships are as much as 3 years.Missing: EMALS | Show results with:EMALS
  49. [49]
  50. [50]
    EMALS Archives - Naval News
    EMALS is an electromagnetic aircraft launch system. It is being tested on the John F. Kennedy and is being considered for future US and French carriers.Missing: history | Show results with:history
  51. [51]
    USS Gerald R. Ford Was Still Struggling With Its Dual Band Radar ...
    Feb 4, 2025 · Continued reliability issues and it having zero commonality with the rest of the fleet were also huge concerns. Cost was also a factor, and ...
  52. [52]
    "They Spent $13 Billion on a Mistake" USS Gerald Ford's ...
    Rating 4.6 (27) Aug 31, 2025 · "They Spent $13 Billion on a Mistake" USS Gerald Ford's Electromagnetic Catapults Keep Failing and Navy Can't Fix Them.
  53. [53]
    Chinese Aircraft Carrier Fujian Launches Stealth Jet, Early Warning ...
    Sep 22, 2025 · ... U.S. Navy to be equipped with the advanced aircraft launching system. Beijing is set to equip the Type 076-class landing helicopter docks ...
  54. [54]
    China's latest aircraft carrier showcases new fighter jet launch ... - CNN
    Sep 23, 2025 · The EMALS system allows carrier aircraft to take off with heavier weapon and fuel loads than those operating off China's two older carriers, the ...
  55. [55]
    China says electromagnetic catapult launched fighters from new ...
    Sep 24, 2025 · The Fujian's system means its carrier group can field a wider variety of aircraft with heavier loads of fuel and weapons, which “dramatically” ...
  56. [56]
    China's Type 003 Carrier Has Been Testing Its Electromagnetic ...
    Sep 23, 2025 · The Type 003 Fujian is the first Chinese carrier to be outfitted with three advanced electromagnetic catapult systems, which are similar to the ...<|separator|>
  57. [57]
  58. [58]
    Reports: U.S. Offers EMALS for Indian Carrier Development Program
    Oct 20, 2017 · The timing of the technology transfer is set to occur ahead of Secretary of State Rex Tillerson's anticipated visit to India in the next several ...
  59. [59]
    ​India Makes Move on Nuclear Aircraft Carrier, Which Even the ...
    Sep 13, 2025 · EMALS accelerate the aircraft more smoothly and in a more controlled way. They have more power, which means the possibility of launching heavier ...
  60. [60]
    Which American Aircraft Carriers Have Electromagnetic Catapults?
    Aug 13, 2025 · Electromagnetic Aircraft Launch System (EMALS) is only found on America's Gerald R. Ford-class carriers, of which there is only one, ...
  61. [61]
  62. [62]
    EMALS and AAG Successful Performance during CVN 78 Full Ship ...
    Sep 3, 2021 · Ford (CVN 78) successfully performed as designed as the ship underwent Full Ship Shock Trials (FSST) off the Eastern seaboard during the months ...
  63. [63]
    EMALS and AAG Successfully Performed during CVN 78 Shock Trials
    Sep 4, 2021 · Ford (CVN 78) successfully performed as designed as the ship underwent Full Ship Shock Trials (FSST) off the Eastern seaboard during the months ...
  64. [64]
    China's Fujian Aircraft Carrier Tests Electromagnetic Catapult Amid ...
    Nov 27, 2023 · China's most advanced “super carrier” Fujian has started testing her electromagnetic catapult system. This makes the Chinese PLA Navy the ...
  65. [65]
    [PDF] CVN-78 Gerald R. Ford Class Nuclear Aircraft Carrier
    The Navy designed CVN-78 to increase the sortie generation capability of embarked aircraft to 160 sorties per day (12-hour fly day) and to surge to 270 sorties ...<|separator|>
  66. [66]
    Gerald R. Ford (CVN 78) - All Hands Magazine
    Jul 22, 2017 · The Advanced Arresting Gear (AAG) system provides Ford-class ships with the ability to recover both current and projected carrier-based, ...
  67. [67]
  68. [68]
    India's Aircraft Carrier Plan Hit by US Tech Delays - YouTube
    Sep 24, 2025 · ... carrier, INS Vishal—a 65000-ton behemoth eyed for electromagnetic catapults (EMALS) and potential nuclear propulsion—remains mired in delays ...
  69. [69]
    Once "Far Ahead" Of China In Aircraft Carriers, India Plans Nuclear ...
    Sep 9, 2025 · China's indigenously developed Fujian aircraft carrier is only the second in the world to feature electromagnetic catapults, which will enable ...
  70. [70]
    China's J-35 Electromagnetic Launch: Not a Catch-Up to the US, But ...
    Sep 23, 2025 · On September 22nd, China's Fujian aircraft carrier achieved a decisive breakthrough: the successful electromagnetic catapult launch and recovery ...
  71. [71]
    Next-gen U.S. carriers Ford-class push forward amid reliability and ...
    Oct 10, 2025 · USS Gerald R. Ford is entering routine carrier ops as the Navy fine-tunes its next-gen systems and China's Fujian advances in parallel.