Accession Number : AD0783517

Title :   Aircrew Automated Escape System Simulation Model.

Descriptive Note : Technical rept.,

Corporate Author : NAVAL WEAPONS LAB DAHLGREN VA

Personal Author(s) : Gracey,Christopher

Report Date : FEB 1974

Pagination or Media Count : 90

Abstract : A math model is presented for simulating the performance of the SEU-3/A Ejection Seat Escape System which employs propulsion, parachute, and stabilization subsystems. Seat/man, man alone, and seat alone configurations are treated as rigid bodies in six degrees-of-freedom. 'Canopy first' recovery parachute deployment by rocket and/or drogue parachute is modelled as well as 'lines first' drouge deployment. Parachute opening equations are treated in detail, and riser/suspension line forces are assumed to be elastic. In addition, an aircraft model is formulated. (Author)

Descriptors :   *EJECTION SEATS, *VERTICAL TAKEOFF AIRCRAFT, MATHEMATICAL MODELS, EQUATIONS OF MOTION, CATAPULTS, ROCKET PROPULSION, DROGUE PARACHUTES, DEPLOYMENT, STABILIZATION SYSTEMS, SHORT TAKEOFF AIRCRAFT, MARINE CORPS

Subject Categories : Gliders and Parachutes
      Escape, Rescue and Survival

Distribution Statement : APPROVED FOR PUBLIC RELEASE