Douglas Aircraft Company Advanced Concept Ejection Seat (ACES II). Revision C
Abstract:
ACES II Advanced Concept Ejection Seat is a high-performance escape system. The increased performance capability greatly improves the survivability of aircrews during escape from aircraft under adverse conditions throughout the flight envelope. ACES II is a rugged, lightweight, easy to maintain ejection seat with advanced-technology subsystems. The subsystems were designed, tested, and qualified in the USAFDouglas ACES I program, and are integral in the all- new seat structure of ACES II. ACES II seat systems are currently being manufactured for installation in F-15AB, F-16AB, and A-10 aircraft as the standard USAF Government-furnished ejection seat. It includes the following features Multiple operating modes to optimize performance over the 0 to 600- KEAS escape envelope Self-contained sensing of escape conditions for recovery mode selection Electronics for sequencing and precision timing in each mode Gyro-controlled vernier rocket for positive stabilization at low speeds Hemisflo drogue parachute for stabilization and deceleration at high speeds and high Mach numbers and Mortar-deployed recovery parachute for consistent, positive operation.