A severance cutter may comprise a housing and a blade may be coupled to the housing. A restraint support may be configured to translate relative to the blade. A spring may be configured to bias a support opening defined by the restraint support away from the blade.

A severance cutter may comprise a housing and a blade may be coupled to the housing. A restraint support may be configured to translate relative to the blade. A spring may be configured to bias a support opening defined by the restraint support away from the blade.

A canopy fragilization system for use in an aircraft ejection system may comprise: a sharp breaker disposed on a first side of an ejection seat, the sharp breaker configured to act as a primary breaker of a canopy of an aircraft; a blunt breaker disposed on a second side of the ejection seat, the blunt breaker configured to act as a secondary breaker of the canopy of the aircraft; and a deployable overhead protection assembly comprising a first tertiary breaker and a second tertiary breaker.

A canopy fragilization system for use in an aircraft ejection system may comprise: a sharp breaker disposed on a first side of an ejection seat, the sharp breaker configured to act as a primary breaker of a canopy of an aircraft; a blunt breaker disposed on a second side of the ejection seat, the blunt breaker configured to act as a secondary breaker of the canopy of the aircraft; and a deployable overhead protection assembly comprising a first tertiary breaker and a second tertiary breaker.

A system for ejection mode verification may comprise: a first ejection seat; a second ejection seat; an ejection mode selector; and a controller configured to: compare a desired ejection mode with a selected ejection mode; and command an indicator to turn “ON” or “OFF” in response to comparing the desired ejection mode with the selected ejection mode.

A system for ejection mode verification may comprise: a first ejection seat; a second ejection seat; an ejection mode selector; and a controller configured to: compare a desired ejection mode with a selected ejection mode; and command an indicator to turn “ON” or “OFF” in response to comparing the desired ejection mode with the selected ejection mode.

A system for automatic ejection mode selection may comprise: a first ejection seat configured to receive a first pilot; a second ejection seat configured to receive a second pilot or a non-pilot; a user detection system configured to determine whether the second ejection seat has the second pilot, the non-pilot, or is empty; and a controller configured to adjust an ejection system in response to determining whether the second ejection seat has the second pilot, the non-pilot, or is empty.

A system for automatic ejection mode selection may comprise: a first ejection seat configured to receive a first pilot; a second ejection seat configured to receive a second pilot or a non-pilot; a user detection system configured to determine whether the second ejection seat has the second pilot, the non-pilot, or is empty; and a controller configured to adjust an ejection system in response to determining whether the second ejection seat has the second pilot, the non-pilot, or is empty.

A motor cap assembly for an ejection seat may comprise a servo valve assembly, a reservoir a cylinder, a motor cap manifold housing comprising a monolithic body having an internal manifold structure integral to the body configured to communicate a gas between a pressure source and a gas block, and configured to communicate a hydraulic fluid between, the reservoir, the servo valve assembly, and the cylinder, a rack piston disposed within the cylinder and configured to translate axially therein between a base end and a head end of the cylinder, and a motor cap outer housing coupled circumferentially about the motor cap manifold housing, wherein the motor cap outer housing is configured to rotate circumferentially about the motor cap manifold housing in response to an axial translation of the rack piston.

A motor cap assembly for an ejection seat may comprise a servo valve assembly, a reservoir a cylinder, a motor cap manifold housing comprising a monolithic body having an internal manifold structure integral to the body configured to communicate a gas between a pressure source and a gas block, and configured to communicate a hydraulic fluid between, the reservoir, the servo valve assembly, and the cylinder, a rack piston disposed within the cylinder and configured to translate axially therein between a base end and a head end of the cylinder, and a motor cap outer housing coupled circumferentially about the motor cap manifold housing, wherein the motor cap outer housing is configured to rotate circumferentially about the motor cap manifold housing in response to an axial translation of the rack piston.