A single-point munition arming interface provides a more efficient approach to arming a canister-based munition. The single-point munition arming interface interfaces with electrically-initiated canister-based munitions. The arming interface locks and arms munitions in a baseplate system before initiation. The single-point munition arming interface includes a feature for removing the first safety in the munitions safe and arm device which is actuated upon insertion of the munition into the interface. The second step in the procedure is a user action which simultaneously locks the munition to the interface and completes the arming sequence by using a single mechanism to achieve both essential motions. The arming interface can be mechanically or electrically actuated allowing for remote activation which increases operator safety.

According to a first aspect of the present invention, there is provided a fuse system (22) for a munitions projectile, the system comprising: a first electro-optic transmitter (24); a first electro-optic receiver (30); the first electro-optic transmitter (24) being arranged to receive electrical power, and to use that received electrical power to transmit an optical signal (28) to the first electro-optic receiver (30); the first electro-optic receiver (30) being arranged to receive the optical signal (28), and to use that received optical signal (28) to transmit electrical power to an element (34) of the fuse system (22) connected to the first electro-optic receiver (30).

According to a first aspect of the present invention, there is provided a fuse system (22) for a munitions projectile, the system comprising: a first electro-optic transmitter (24); a first electro-optic receiver (30); the first electro-optic transmitter (24) being arranged to receive electrical power, and to use that received electrical power to transmit an optical signal (28) to the first electro-optic receiver (30); the first electro-optic receiver (30) being arranged to receive the optical signal (28), and to use that received optical signal (28) to transmit electrical power to an element (34) of the fuse system (22) connected to the first electro-optic receiver (30).

An ignition safety device (ISD) used in an ignition system of a missile is configured to selectively control the ignition of two or more pulses or stages of a rocket motor propulsion system, based on a flight profile mode selection of a flight velocity mode, in which the missile is configured to travel at an optimized flight velocity, or a flight distance mode, in which the missile is configured to travel an optimized flight distance. The ISD is configured to selectively ignite the pulses or stages substantially simultaneously upon selection of the flight velocity mode, or in a delayed sequential manner upon selection of the flight distance mode. The ISD is also configured to selectively inhibit the delayed sequential ignition of the pulses or stages in the event of incidental ground or water impact of the missile after ignition of the primary pulse or stage.

According to a first aspect of the invention, there is provided an object for moving through a fluid, the object comprising: an outer housing, arranged to be exposed to a hydrostatic pressure exerted by the fluid; a strain gauge, arranged to obtain an indication of the hydrostatic pressure, wherein a first part of the strain gauge is arranged to be in contact with the outer housing, such that the strain gauge is arranged to obtain an indication of the hydrostatic pressure by obtaining an indication of the strain on the housing.

A method for rotating a toggle link upon an acceleration event greater than a predetermined threshold. The method including: biasing a toggle link against a stop when the acceleration event is less than the predetermined threshold, a position of the toggle link against the stop being on a first side of a singular position of the toggle link; biasing the toggle link towards an opposite direction from the stop when the toggle link is positioned on a second side of the singular position; and moving the toggle link from the first side of the singular position to the second side of the singular position when the base structure undergoes an acceleration event greater than a predetermined threshold.

A method for rotating a toggle link upon an acceleration event greater than a predetermined threshold. The method including: biasing a toggle link against a stop when the acceleration event is less than the predetermined threshold, a position of the toggle link against the stop being on a first side of a singular position of the toggle link; biasing the toggle link towards an opposite direction from the stop when the toggle link is positioned on a second side of the singular position; and moving the toggle link from the first side of the singular position to the second side of the singular position when the base structure undergoes an acceleration event greater than a predetermined threshold.

An electronic ignition circuit may include a logic circuit and an ignition circuit electrically coupled to the logic circuit. The logic circuit may include a microcontroller and a switching circuit configured to switch from a first detonator or igniter to a second detonator or igniter in response to a signal from the microcontroller. The ignition circuit may include a capacitor discharging circuit configured to discharge a firing capacitor through a fuse head. The capacitor discharging circuit may include an ignition switch configured to remain actively closed after the firing capacitor is discharged through the fuse head.

An electronic ignition circuit may include a logic circuit and an ignition circuit electrically coupled to the logic circuit. The logic circuit may include a microcontroller and a switching circuit configured to switch from a first detonator or igniter to a second detonator or igniter in response to a signal from the microcontroller. The ignition circuit may include a capacitor discharging circuit configured to discharge a firing capacitor through a fuse head. The capacitor discharging circuit may include an ignition switch configured to remain actively closed after the firing capacitor is discharged through the fuse head.

The present invention relates to the control of weapons, particularly weapons which are controlled via a communications link, possibly at some distance from the weapon's location. The invention is to an apparatus comprising safety-critical and non-safety-critical functional parts wherein at least one of a plurality of safety-critical functional parts is only connected to at least one other of the plurality of safety-critical functional parts.