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Landing Zones 1 and 2

Landing Zones 1 and 2 (LZ-1 and LZ-2) were specialized landing facilities at in , developed and operated by to enable the recovery of first-stage boosters from and rockets through vertical propulsive landings. LZ-1, constructed in 2015 on the site of the former Launch Complex 13, achieved a historic on December 21, 2015, when it hosted the world's first successful propulsive landing of an orbital-class rocket booster (B1019) during the ORBCOMM-2 mission. Over its decade of operation, LZ-1 supported 53 booster recoveries, including nine for launches such as the GOES-U mission in June 2024. LZ-2, built adjacent to LZ-1 in 2017, was designed to facilitate simultaneous landings for 's side boosters, though triple recoveries were never fully realized; it complemented LZ-1 in all nine Falcon Heavy missions and continued to serve single-booster landings. Both zones featured circular concrete pads—approximately 280 feet in diameter, surrounded by gravel aprons—to withstand the intense heat and force of engine relights during descent and touchdown. Leased from the U.S. Space Force's 45th Space Wing, the facilities were integral to SpaceX's reusability program, dramatically reducing launch costs by allowing boosters to return to land near their launch sites rather than expending them in the . In 2025, retired LZ-1 following its final booster landing on August 1, 2025, to comply with updated policies mandating integrated launch-and-landing infrastructure at sites like SLC-40 and LC-39A; LZ-2 remains operational as of November 2025, with its most recent landing on November 2, 2025, supporting the transition to these new zones. The LZ-1 site was returned to the and reassigned in 2023 to emerging launch providers Phantom Space and Vaya Space for development of new vertical-launch pads targeting missions by 2026–2027.

Location and Facilities

Site Overview

Landing Zones 1 and 2 (LZ-1 and LZ-2) were dedicated landing facilities operated by at in , serving as key sites for the recovery of and first-stage boosters. Situated on the former site of Launch Complex 13 (LC-13), the coordinates of the primary landing area were approximately 28°29′10″N 80°32′42″W. Originally constructed in the late 1950s for Atlas missile testing and launches, LC-13 supported 51 missions until its decommissioning in 1978, after which the infrastructure fell into disuse as part of broader facility reductions. In the early , the U.S. began repurposing disused sites at for commercial space activities, with an environmental assessment for potential booster landings at LC-13 completed in 2014. leased the approximately 100-acre plot in February 2015 from the 45th Space Wing, converting it into LZ-1 and later expanding to LZ-2 for parallel booster recoveries during missions. The site lay adjacent to Space Launch Complex 1 (SLC-1), a former rocket pad, within the broader complex that included historic missile testing grounds. Geographically, LZ-1 and LZ-2 were positioned about 5 miles south of Space Launch Complex 40 (SLC-40), SpaceX's primary launch site, and approximately 9 miles southeast of Kennedy Space Center's Launch Complex 39A (LC-39A). This proximity facilitated efficient booster return trajectories while integrating with SpaceX's overall East Coast operations for reusable development. Following SpaceX's retirement of the facilities in 2025, the LZ-1 site was returned to the U.S. and reassigned in 2023 to Phantom Space and Vaya Space for development of new vertical launch pads for missions, targeted for 2026–2027.

Infrastructure Details

Each landing zone featured a circular pad measuring 282 feet (86 meters) in and 18 inches thick, reinforced with beams to support the weight and propulsive forces of and boosters during vertical landings. These pads were surrounded by a 50-foot-wide compacted apron to facilitate safe touchdown and initial operations, with the designed to endure the intense and acoustic from burns. Support equipment at the landing zones included blast deflectors integrated into the pad structure to redirect exhaust plumes away from the surface, minimizing and structural stress. Water deluge systems, consisting of remote-controlled cannons fed by a 12,000-gallon , were used to suppress levels and thermal damage. purge systems delivered through buried conduits to cool and inert the booster engines post-landing, preventing residual ignition risks during recovery. Shared facilities supporting both zones encompassed propellant farms storing and (LOX) for broader operations, as well as a local control center linked to SpaceX's primary mission control in , for real-time monitoring and coordination. Key upgrades included the 2016 installation of high-intensity lighting and multiple tracking cameras to enable precise night-time landings, as demonstrated in the JCSAT-14 mission. In 2020, access roads were expanded to improve vehicle transit times for booster transport and rapid refurbishment turnaround.

Development and Construction

LZ-1 Buildout

The planning and initial construction of Landing Zone 1 (LZ-1) originated from a U.S. Air Force environmental assessment evaluating the conversion of the former Launch Complex 13 at Air Force Station into a dedicated landing site for first-stage boosters. This assessment supported the infrastructure needed for boost-back trajectories and vertical landings, paving the way for 's reusability goals. In February 2015, secured a five-year from the U.S. Air Force's 45th Space Wing for the 37-acre site, with terms allowing up to 12 landings annually on the main pad and limited use of contingency areas. Construction began promptly after the lease, focusing on a circular landing pad approximately 86 meters (282 feet) in diameter reinforced for high-impact recoveries, four planned contingency pads, each approximately 46 meters (150 feet) in diameter, for emergency diversions (though ultimately not constructed), and a pedestal for post-landing booster processing. The site's legacy contamination, including polychlorinated biphenyls (PCBs), lead, trichloroethylene, and from prior operations (SWMU C038), necessitated remediation during excavation to comply with RCRA and prevent environmental release. Key construction milestones unfolded rapidly in 2015, with the primary concrete pad poured and completed by late that year to meet operational timelines. The facilities were designed for precision integration with SpaceX's autonomous landing software, enabling real-time guidance corrections during descent. LZ-1 achieved operational readiness in time for its inaugural use on December 21, 2015, during the launch of the Orbcomm-2 mission, where booster B1019 executed the first successful vertical landing of an orbital-class rocket stage after reaching space. This test validated the pad's structural integrity under full mission loads, with the booster successfully touching down after a controlled deceleration from hypersonic reentry speeds. Building LZ-1 presented engineering hurdles tied to the site's legacy as a 1950s-era Atlas launch complex, including contaminated with polychlorinated biphenyls (PCBs) and lead from historical and operations, which required remediation protocols to prevent environmental release during excavation. The region's sandy, low-bearing-capacity demanded geotechnical stabilization techniques, such as pilings and compacted bases, to ensure the pad could withstand the dynamic loads of 25-tonne boosters without . Integration with preexisting utilities— including 115 kV electrical distribution from and water supply from the City of Cocoa—was straightforward, as the station's infrastructure proved adequate without major expansions, minimizing downtime and costs. These efforts were informed by the 2014 , which confirmed no significant impacts from tie-ins or handling.

LZ-2 Expansion

The expansion of Landing Zone 2 (LZ-2) was motivated by the need to accommodate simultaneous landings of the two side boosters from 's rocket during its inaugural flight on February 6, 2018, enabling greater reusability for the vehicle's triple-core configuration. This built upon the success of Landing Zone 1 (LZ-1) as the initial onshore recovery site for single boosters. Construction preparations advanced following U.S. approval in April 2017, with filing an environmental permit for stormwater infrastructure on July 31, 2017, marking the effective start of buildout activities. LZ-2 features a landing pad identical in size to LZ-1, measuring approximately 282 feet (86 meters) in diameter, surrounded by a 50-foot-wide apron to facilitate booster . Unlike the original LZ-1, which was designed primarily for single-booster returns, LZ-2 incorporates an enhanced water deluge system capable of suppressing the intense heat and acoustic energy generated by multiple engine firings during Falcon Heavy side booster touchdowns. The pad was completed in approximately five months, allowing operational readiness by early 2018. Key milestones for LZ-2 include its debut during the Demo-1 mission on February 6, 2018, when both side boosters successfully touched down—one on LZ-1 and the other on LZ-2—demonstrating coordinated recovery for the first time. This integration with LZ-1 optimized shared logistics, such as crane access and booster transport, streamlining post-landing processing at the site. To address Florida's environmental regulations, LZ-2's construction included additional wetlands mitigation measures, such as advanced stormwater management systems to prevent runoff impacts on nearby ecosystems and ensure compliance with state water quality standards enforced by the St. Johns River Water Management District.

Operational Procedures

Landing Protocols

The landing protocols for boosters at Landing Zones 1 and 2 encompass a precise sequence of maneuvers designed for return-to-launch-site (RTLS) operations, enabling the first stage to return to the area shortly after separation. Approximately 2 minutes and 30 seconds after liftoff (T+2:30), the boostback burn commences using three of the nine 1D engines to reverse the booster's trajectory and direct it back toward the . This is followed by the entry burn at around T+6:00, which employs a single engine for about 20 seconds to decelerate the booster and manage atmospheric reentry heating. The final landing burn initiates at approximately T+8:00, firing the single center engine to slow the descent to a gentle touchdown, while titanium grid fins deploy post-separation to provide aerodynamic and throughout the descent phase. Weather conditions at the landing zones must satisfy stringent criteria to ensure booster stability and crew safety during approach and touchdown. Acceptable parameters include sustained surface winds below 20 knots and visibility exceeding 3 miles, mitigating risks from or reduced observational capabilities. The (FAA) supports these protocols by issuing Notices to Air Missions (NOTAMs) at least 72 hours prior to the planned landing window, establishing temporary flight restrictions over the zones to clear airspace for the booster's descent. Following a successful , the process begins immediately with ground crews approaching the booster for preliminary visual and structural inspections to assess for damage, residuals, and system integrity. These inspections, conducted by technicians using portable equipment, typically confirm the booster's condition within minutes, after which it is secured and transported via specialized flatbed vehicles to nearby hangars for detailed refurbishment and analysis, with the entire relocation completed within 2 hours to expedite turnaround. The protocols have evolved significantly since initial development, transitioning from experimental hoverslam tests conducted between 2013 and 2015—such as the suborbital flights—to reliable RTLS operations by 2017, when the first reflight of a landed booster occurred, marking the onset of routine reusability. This progression incorporated iterative improvements in propulsion throttling, reliability, and autonomous guidance software, reducing failure rates and enabling over 300 successful landings by 2025.

Support Systems

The support systems for Landing Zones 1 and 2 integrate advanced , automation, ground monitoring, and reliability enhancements to facilitate safe and precise and booster landings at these facilities. Telemetry systems deliver real-time data through GPS for positional tracking, inertial measurement units () for orientation and acceleration sensing, and radar altimeters for altitude measurement, collectively enabling 1-meter landing accuracy. These components have been integrated with satellites since 2021 to provide low-latency communications, reducing data transmission delays to under 20 milliseconds for critical descent phases. Automation is handled by onboard autonomous landing software that utilizes proportional-integral-derivative (PID) control algorithms to manage thrust vectoring via Merlin engine gimbaling. This ensures stable descent and precise touchdown by dynamically adjusting engine orientation and throttle. The core thrust adjustment equation during hover and final approach compensates for gravitational and aerodynamic forces as follows: T = m g + D where T is the required thrust, m is the vehicle mass, g is gravitational acceleration (approximately 9.81 m/s²), and D represents drag compensation terms derived from real-time aerodynamic models. Ground monitoring features four high-speed cameras per landing pad, operating at frame rates exceeding 1000 to capture dynamics, which are synchronized with aerial footage for multi-angle analysis and post-flight review. Emergency abort systems incorporate pyrotechnic arming mechanisms to initiate rapid flight termination if deviations exceed thresholds, such as excessive or off-nominal . Reliability metrics demonstrate a 99% success rate across thousands of landing simulations, validating system robustness under varied wind and environmental conditions. In 2023, upgrades introduced AI-based algorithms, employing models to identify and mitigate potential failures in or loops in , thereby improving overall operational .

Landing History

LZ-1 Missions

Landing Zone 1 (LZ-1) played a pivotal role in SpaceX's early demonstrations of rocket reusability, serving as the primary onshore landing site for Falcon 9 first-stage boosters attempting return-to-launch-site (RTLS) profiles from east-coast launch pads at Cape Canaveral Space Force Station and Kennedy Space Center. Over its operational decade, LZ-1 hosted 53 successful landings, with the sole failure linked to the CRS-7 mission on June 28, 2015. Although LZ-1 was not yet fully activated for landings, the mission was intended as the site's inaugural RTLS attempt; however, the Falcon 9 disintegrated during ascent at T+2:19 due to a second-stage helium COPV rupture, preventing any landing effort. This incident, investigated by NASA, highlighted early challenges in composite overwrapped pressure vessel integrity under flight conditions, informing subsequent design improvements for reusable boosters. The historic first success at LZ-1 occurred on December 21, 2015, during the Orbcomm-2 mission, when booster B1019 executed a precise propulsive after deploying 11 communications satellites to . This achievement represented the world's first vertical landing of an orbital-class stage, validating SpaceX's RTLS and paving the way for routine booster recoveries. LZ-1 quickly became integral to operations, accommodating the majority of Block 5 variant landings through 2023—approximately 70% of such attempts—due to its proximity to SLC-40 and LC-39A, enabling efficient turnaround for low-energy trajectories typical of east-coast missions like deployments and resupply flights. Notable for reuse milestones, LZ-1 supported multiple reflights of individual boosters, with several boosters achieving multiple landings at the site between 2019 and 2021. These operations underscored LZ-1's contribution to cost reductions through rapid refurbishment cycles, as boosters routinely underwent inspections and relaunches within months. By the early 2020s, LZ-1 had facilitated over 50 recoveries, emphasizing conceptual advancements in grid fin control, cold-gas thrusters, and engine relight reliability for pinpoint accuracy. LZ-1's operational phase wound down post-2022, as increasingly favored drone ship recoveries for higher-performance missions to minimize conflicts with burgeoning testing and launches at the complex. The final landing at the site took place on August 1, 2025, during NASA's Crew-11 mission to the , after which returned the pad to U.S. control amid lease expiration and shifting priorities for integrated launch-landing infrastructure.

LZ-2 Missions

Landing Zone 2 (LZ-2) primarily supports the recovery of side boosters, with occasional use for single first stages during missions requiring return-to-launch-site (RTLS) profiles due to payload mass or trajectory constraints. The site's configuration allows for the complex coordination of multiple booster arrivals, distinguishing it from LZ-1's role in early single-booster demonstrations. All 15 landings at LZ-2 have been successful, with no recorded failures, reflecting advancements in autonomous guidance and propulsion systems tailored for high-velocity reentries. LZ-2's first landing occurred on April 11, 2019, during the mission, marking the inaugural split recovery with one side booster landing at LZ-1 and the other at LZ-2. This demonstrated the pad's capability for precise, high-thrust landings under acoustic and structural loads unique to clustered booster operations and established LZ-2 as a critical asset for reusability, enabling rapid turnaround for subsequent flights. LZ-2 has become routine for side booster recoveries, with missions such as USSF-44 in November 2020 exemplifying the site's reliability for national security s requiring geosynchronous insertion. In that launch, a side booster successfully landed at LZ-2 after delivering classified s, contributing to the U.S. Space Force's operational tempo without expending hardware. By 2025, LZ-2 supported the 15th landing on November 1 during the Bandwagon-4 rideshare mission, where a single booster returned amid a diverse manifest of 18 satellites, highlighting the pad's versatility beyond Heavy-class operations. Approximately 80% of LZ-2 missions involve Falcon Heavy side boosters, underscoring its specialization for triple-core configurations that demand split recovery between LZ-1 and LZ-2 to optimize downrange trajectories. Post-2023, usage has trended toward increased single-booster landings for high-payload missions like deployments or government contracts, where RTLS preserves offshore droneship assets for longer-range flights. This shift supports SpaceX's high-cadence launch cadence, with LZ-2 handling up to two arrivals per Heavy mission. Multi-booster recoveries at LZ-2 require precise staggered timing to mitigate risks from acoustic shockwaves and ground , typically with a 15-second offset between the two side boosters' touchdown sequences. This protocol ensures safe separation during the final descent phase, where boosters perform entry and landing burns in near-simultaneous windows around T+8 minutes. Such procedures have enabled flawless dual landings across multiple flights, enhancing overall mission efficiency without compromising pad integrity.

Key Events and Statistics

One of the most notable incidents at Landing Zone 1 occurred during the CRS-16 mission on December 5, 2018, when the Falcon 9 first stage booster B1050 experienced a hydraulic pump stall in one of its grid fins, causing it to deviate from the intended landing path and perform an off-nominal water landing approximately 100 meters short of the pad. The booster remained intact and transmitted data post-splashdown, allowing for recovery and analysis that informed subsequent improvements to the grid fin system. In contrast, Landing Zone 2 has maintained a perfect record with no reported failures or near-misses since its first use in April 2019 for the Falcon Heavy Arabsat-6A side booster landings. By November 2025, Landing Zones 1 and 2 had collectively supported 69 landing attempts for Falcon 9 and Falcon Heavy first stages, achieving 68 successful touchdowns for an overall success rate of 98.6%. LZ-1 accounted for 54 attempts (53 successful), while LZ-2 handled 15 (all successful), reflecting LZ-1's primary role in early operations before its partial decommissioning in August 2025. Boosters recovered at these zones have demonstrated rapid reusability, with an average turnaround time of approximately 21 days between flights, enabling multiple missions per booster and contributing to SpaceX's high launch cadence. Key milestones include the 100th successful Falcon booster recovery overall, achieved on December 21, 2021, during the CRS-24 mission with a landing at LZ-1, marking a significant step in reusable rocket technology six years after the first orbital-class landing. In terms of environmental impact, a 2025 FAA environmental assessment for Falcon operations at concluded minimal disruption to local wildlife, with noise and effects confined to low-sensitivity areas and no significant long-term habitat alterations observed. Comparatively, LZ-1 has handled about 78% of all onshore landings at the Cape Canaveral complex, versus LZ-2's 22%, underscoring LZ-1's heavier utilization for routine recoveries prior to the site's transition.

Recent Developments

LZ-1 Decommissioning

The decommissioning of Landing Zone 1 (LZ-1) at marked the end of its decade-long role as a primary recovery site for Falcon 9 and first-stage boosters. The final landing occurred on August 1, 2025, during the Crew-11 mission, after which initiated the handover process to the U.S. . The handover was completed on August 2, 2025, in accordance with the original lease terms established in 2015, which allowed temporary use of the site formerly known as Space Launch Complex 13 (SLC-13). The primary reasons for decommissioning stemmed from the U.S. 's policy shift to integrate landing zones with launch sites and the site's reassignment in 2023 to Phantom Space and Vaya Space for development of new commercial launch pads targeting missions by 2026–2027. In parallel, transitioned its recovery operations to offshore drone ships and the at LC-39A, aligning with evolving launch cadence demands and infrastructure optimizations at . This aligns with policies requiring co-located launch and landing facilities to support higher launch cadences. The decommissioning process involved transition planning and environmental assessments to restore the site, overseen by , in preparation for reassignment. This transition prompted to shift recoveries to offshore drone ships and new integrated landing zones at LC-39A and SLC-40.

LZ-2 Enhancements and Future Role

LZ-2 continued as SpaceX's primary onshore landing site through the end of its lease on December 31, 2025, supporting and Heavy recoveries during the transition to new integrated landing zones at SLC-40 (up to 34 landings annually) and LC-39A (up to 20 landings annually). The site, adjacent to the reassigned LC-13 area, will be returned to the for potential repurposing. LZ-2 supported ongoing recoveries as of November 2025. Ongoing challenges for LZ-2 include heightened coordination with the (FAA) to manage increased air traffic during the Starship operational era, ensuring safe integration of suborbital and orbital recoveries amid up to 120 annual Falcon launches from the region. Sustainability efforts have incorporated measures such as solar-powered lighting for perimeter security and auxiliary systems, reducing reliance on grid power and minimizing environmental footprint.

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