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The original Mk 4 FFAR was about 4 ft (1.2 m) long and weighed 18.5 lb (8.4 kg), with a high-explosive warhead of about 6 lb (2.7 kg). Like the Luftwaffe's R4M projectile of World War II, it had folding fins that flipped out on launch to spin-stabilize the rocket, with the FFAR using half the number (four) of fins in comparison to the R4M's set ...
The Hydra 70 is derived from the 2.75-inch (70 mm) diameter Mk 4/Mk 40 Folding-Fin Aerial Rocket developed by the United States Navy for use as a free-flight aerial rocket in the late 1940s. The Mk 40 was used during the Korean and Vietnam wars to provide close air support to ground forces from about 20 different firing platforms, both fixed ...
The gun was an improved version of the 1901 BL 10-pounder mountain gun.. The new 1911 version improved on the 1901 gun with a new pole trail, recoil buffer, recuperator and gun shield, and increased shell weight from 10 to 12.5 lb (5.7 kg).
The primary warhead for the original CRV7 was the U.S. M151 High Explosive Point Detonating (HEPD) round, a simple impact-fired 10 lb (4.5 kg) high-explosive shell. Like the U.S. 2.75-inch (70 mm) weapons, the CRV7 could also be equipped with the M156 Smoke or M257/278 Illumination rounds.
The QF 2.95-inch mountain gun was the designation given by the British to a Vickers 75 mm calibre gun. It was originally produced for the Egyptian Army . It was taken into British service in the late 19th century to provide the 'movable armament' at some coaling stations .
The QF 4 inch Mk V gun [note 1] was a Royal Navy gun of World War I which was adapted on HA (i.e. high-angle) ...