Mk 19 Mod 0 Impulse Cartridge The Mk 19 Mod 0 impulse cartridge (fig. 8-28) is a backup cartridge. It is normally used for the emergency jettison/release of stores loaded on an aircraft during flight. This cartridge is fired after an attempt has been made to fire the primary cartridges. MISCELLANEOUS CARTRIDGES Miscellaneous cartridges include cable cutters, explosive bolts, and fire extinguishers. Mk 97 Mod 0 Impulse Cartridge The Mk 97 Mod 0 impulse cartridge (fig. 8-29) is used as a power source to actuate a helicopter cable cutter to cut a chain/cable in an emergency. Mk 1 Mod 3 Impulse Cartridge The Mk 1 Mod 3 impulse cartridge (fig. 8-30) is used primarily to actuate a refueling hose guillotine in an emergency. Aircraft Fire-Extinguisher Cartridge In the event of fire, the aircraft fire extinguisher cartridges start the release of fire-extinguishing agents into the area surrounding an aircraft engine. Q8-25. What are some of the escape operations performed by cartridges and CADs? Q8-26. Personnel in what rating usually install cartridges and CADs used in personnel escape systems? Q8-27. Cartridges that are used for cable cutters, explosive bolts, and fire extinguishers are known as what type of cartridges? AIRCRAFT WEAPONS SUSPENSION AND RELEASING EQUIPMENT LEARNING OBJECTIVE: Identify the types, uses, and basic characteristics of aircraft weapons suspension and releasing equipment. Naval combat aircraft and weapons use highly complex suspension, arming, and releasing devices. The majority of these devices are electronically operated and are part of the aircraft's electrical circuits. The devices are activated by a hand switch or automatically through a circuit-closing device in the system. Manual operation is possible, if needed. Current suspension, arming, and releasing devices for aircraft require the use of associated electrical gear. This gear times the release of stores and rack selectors 8-24 IGNITION ELEMENT MAIN CHARGE (8 PIECES BY COUNT) INSULATOR PLUG BODY DISC MK 19 MOD 0 ANF0828 Figure 8-28.—Typical impulse cartridge used in bomb racks, launchers, and dispensers. CASE PRIMER PROPELLANT CLOSURE DISC ANF0829 Figure 8-29.—Mk 97 Mod 0 impulse cartridge. WASHER BUSHING ELECTRODE CASE SECONDARY CHARGE IGNITION CUP BOOSTER CHARGE MAIN CHARGE COVER CAP PLASTIC CAP CUP CUP ANF0830 Figure 8-30.—Mk 1 Mod 3 impulse cartridge (sectioned).