CPC B64D 17/80 (2013.01) [B64D 17/725 (2013.01)] | 16 Claims |
1. An aircraft emergency parachute deployment system, comprising:
an emergency parachute comprising:
a parachute canopy, parachute lines connecting said canopy to said aircraft, and a lanyard having first and second ends, the first end attached to a top skin of said canopy; and
a two-stage rocket assembly, comprising first and second rocket motor stages, said two-stage rocket assembly being connected to said second end of said lanyard;
wherein said first rocket motor stage is configured to provide a thrust-to-weight ratio greater than one when considering the weight of said two-stage rocket assembly, said lanyard, said parachute canopy and said parachute lines; and
wherein said second rocket motor stage is configured to provide a thrust-to-weight ratio greater than one when considering the weight of said aircraft.
|