Next generation escape performance for the Navy Aircrew Common Ejection Seat


Introducing 5th generation escape capabilities to NACES

NACES has saved 150 lives to date

Successfully delivered over 3,000 NACES seats

The US14A Navy Aircrew Common Ejection Seat (NACES), originally developed in the mid 1980’s, is being upgraded into the NACES Next Generation (NACES NXG) configuration for the F/A-18 and T-45 replacement aircraft – Undergraduate Jet Training System (UJTS). The NXG improvements will ensure the NACES Seat will meet the very latest physiological injury requirements long into the future for US Navy Next Generation Air Dominance (NGAD)

Operating ceiling50,000ft (15,250m)
Minimum height/speedZero-zero in near level attitude
Aircrew accommodation rangeCEASAR cases 1-6
Maximum speed for ejection600 KEAS
Parachute typeIGQ 6000
Neck ProtectionYes, Neck Protection Device (NPD) fitted
Harness typeGen 5 Integrated harness with Head Support Panel (HSP)
Ejection gunSingle tube ejection gun/catapult
Automatic back-up unitYes
Electronic SequencerYes
Seat AdjustmentYes
Arm restraintsYes, active Type II
Leg restraintsYes, passive system
Oxygen supplyEnhanced Emergency Oxygen Supply (EEOS) + connection to main On Board Oxygen Generation System (OBOGS)
Seat Survival KitYes, with automatic deployment and liferaft inflation
Aircrew servicesYes, connection to main oxygen supply, mic/tel, anti-g and interface to helmet
Canopy jettisonYes
Canopy severanceYes
Inter-seat Sequencing System (ISS)Yes
Auto eject systemNo

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