Which statement best describes the ejection seat propulsion sequence?

Which statement best describes the ejection seat propulsion sequence?

• A. Manual, hydraulically operated
• B. Electric only
• C. Automatic, cartridge operated, and rocket assisted
• D. Pneumatically assisted with no rockets

Answer: (C)

The propulsion sequence is automatic and uses both a cartridge and rocket power to ensure a safe, rapid escape. When the ejection handle is pulled, a small pyrotechnic cartridge fires to push the seat out of the cockpit and eject the canopy, giving the pilot the initial forward impulse needed to clear the airframe. After this initial push, rocket-assisted motors take over to provide the sustained thrust that drives the seat—and the pilot—away from the aircraft and to a safe altitude for parachute deployment. This automatic sequencing means no further input is required from the pilot once the handle is pulled. It wouldn’t fit because it would leave out either the initial cartridge start or the rocket boost, and it wouldn’t match the actual automatic, multi-stage propulsion used in modern high-speed ejection seats.

The propulsion sequence is automatic and uses both a cartridge and rocket power to ensure a safe, rapid escape. When the ejection handle is pulled, a small pyrotechnic cartridge fires to push the seat out of the cockpit and eject the canopy, giving the pilot the initial forward impulse needed to clear the airframe. After this initial push, rocket-assisted motors take over to provide the sustained thrust that drives the seat—and the pilot—away from the aircraft and to a safe altitude for parachute deployment. This automatic sequencing means no further input is required from the pilot once the handle is pulled. It wouldn’t fit because it would leave out either the initial cartridge start or the rocket boost, and it wouldn’t match the actual automatic, multi-stage propulsion used in modern high-speed ejection seats.