초록 ▼

An aircraft ejection seat (10, 120) having a combined catapult (46, 122) and rocket motor (88, 90, 130, 132, 142, 144) in which the amount of rocket thrust is selectable. An outer catapult tube (46, 122) forms a seat support structure. In the outer catapult tube there is a plug (66, 66A) at its uppe

An aircraft ejection seat (10, 120) having a combined catapult (46, 122) and rocket motor (88, 90, 130, 132, 142, 144) in which the amount of rocket thrust is selectable. An outer catapult tube (46, 122) forms a seat support structure. In the outer catapult tube there is a plug (66, 66A) at its upper end before ejection and carries a propellant for ejecting the seat from the aircraft when the propellant is discharged. There is a fixed sleeve (84) in the lower end of the outer catapult having an internal circumferential bearing surface with which the inner catapult tube is engaged before and during ejection. The holding sleeve is positioned to engage the plug (66, 66A) when the ejection has become complete. The plug then seals the outer catapult to receive gas from the rocket gas generators to elevate the seat substantially above the aircraft, as necessary under certain conditions.

대표청구항 ▼

An aircraft ejection seat having catapult means for ejecting the seat and carrying it away from the aircraft, comprising: an outer catapult tube secured to the seat for ejection therewith from the aircraft, said outer catapult tube including an upper and a lower end, and said outer catapult tube bei

An aircraft ejection seat having catapult means for ejecting the seat and carrying it away from the aircraft, comprising: an outer catapult tube secured to the seat for ejection therewith from the aircraft, said outer catapult tube including an upper and a lower end, and said outer catapult tube being closed at its upper end; an inner catapult tube within the outer catapult tube, said inner catapult tube having a lower end secured to the aircraft and an upper end; plug means within the outer catapult tube which prior to ejection is supported on and by the upper end of the inner catapult tube; propellant means between the plug means and the closed upper end of the outer catapult tube, which when ignited creates propellant gases for moving the outer catapult tube upwardly away from the plug means and the inner catapult tube; and holding means within the outer catapult tube adjacent the lower end of the outer catapult tube positioned to engage the plug means and secure the plug means in position adjacent the lower end of the outer catapult tube when the outer catapult moves upwardly during ejection, so that the plug means will stay with and becomes a lower closure wall for the outer catapult tube when the outer catapult tube moves off from the inner catapult tube and away from the aircraft.