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Various ejection seats. In aircraft, an ejection seat or ejector seat is a system designed to rescue the pilot or other crew of an aircraft (usually military) in an emergency. . In most designs, the seat is propelled out of the aircraft by an explosive charge or rocket motor, carrying the pilot with
In most ejection seat equipped aircraft, the canopy is blown upwards and rearwards by explosive charges. The relative wind then blows the canopy away from the ejection path. However, on some aircraft, such as the McDonnell Douglas AV-8B Harrier II, the pilot may be forced to eject when in a hover, or when going too slow for the relative wind to ...
Back injury rates occur in only 1% of ACES ejections compared to 20% to 40% in most other ejection seats. [2] The A-10, F-15, F-117, B-1, and B-2 use connected firing handles that activate both the canopy jettison systems, and the seat ejection. Both handles accomplish the same task, so pulling either one suffices.
On many high-performance military aircraft, the canopy is an integral part of the ejection seat system. The pilot cannot be ejected from the aircraft until the canopy is no longer in the path of the ejection seat. In most ejection seat equipped aircraft, the canopy is blown upwards and rearwards by explosive charges.
The Mk.5 seat was developed alongside the Mk.4 design to meet the needs of the United States Navy. Compared to the Mk.4 seat the structure and harnesses were strengthened to withstand higher crash landing loads, this resulted in a slight increase in weight. [2] Canopy breaking horns were added to allow ejection through an unjettisoned canopy. [2]
The Mk.6 seat was developed from the earlier Mk.4 design by the addition of a rocket pack to enable zero-zero capability. [1] A variant of the Mk.6 was fitted with a compressed air cylinder crew breathing system to provide underwater ejection capability for the carrier-borne Blackburn Buccaneer aircraft.
Operating the seat pan firing handle initiates firing of the canopy miniature detonating cord, the main gun located at the rear of the seat then fires, the main gun is a telescopic tube with two pairs of explosive charges that fire in sequence. As the seat moves up its guide rails an emergency oxygen supply is activated and personal equipment ...
Operating either the seat pan or face blind firing handles initiates aircraft canopy jettison, the main gun located at the rear of the seat then fires, the main gun is a telescopic tube with two explosive charges that fire in sequence. As the seat moves up its guide rails an emergency oxygen supply is activated and personal equipment tubing and ...