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The Royal Ordnance basic L11 design was developed into a series of improved production models; the L11A5 was the major production version. L11A1 – The initial production variant; 130 were produced. L11A2 – RO Defence incorporated numerous minor changes, including a modified vent tube, an obturator sleeve protector, and a 15-hole vent tube ...
L44A1 7.62mm Machine Gun (Royal Navy L7 variant fitted with L1A1 Safety Unit and No. 1 Mk 1 Electrical Firing Unit, normally pintle-mounted or set in remote gun pods) [24] L45 L45A1 7.62mm Drill Machine Gun (Drill purpose version of L7) L46 L46A1 7.62mm Drill Machine Gun (Drill purpose version of L7) L47 L47A1 7.65mm Automatic Pistol [109] [173]
The L30A1, officially designated Gun, 120 mm, Tank L30, is a British-designed 120 mm rifled tank gun, installed in the turrets of Challenger 2 main battle tanks.It is an improved production model of the Royal Ordnance L11 series of rifled tank guns.
The FV4201 Chieftain was the main battle tank (MBT) of the United Kingdom from the 1960s into 1990s. When introduced, it was among the most heavily armed MBTs of the era, mounting a 120 mm Royal Ordnance L11 gun, the equal of the much larger specialist heavy tanks then in service.
The main armament consisted of a Royal Ordnance L11A5 120 mm rifled gun, it was fitted with an experimental rigid thermal sleeve optimized for hot weather operations, it was made of a new material called Fibrelam, it was also featured on the Vickers Valiant MBT. [5]
M2 Browning, a machine gun designated L11 by the British Army Royal Ordnance L11 , a British tank gun L-11, the assembly number of the Little Boy atomic bomb dropped on Hiroshima
Their external mounting was a significant problem, and fitting them required changes to the sighting systems, none of which was inexpensive. As the Royal Ordnance L11 main gun underwent development it proved far more powerful than expected and the extra hitting power of the Swingfire was no longer seen as a benefit worth the cost. [7]
The Royal Ordnance L7, officially designated Gun, 105 mm, Tank, L7, is the basic model of the United Kingdom's most successful tank gun.It is a 105 mm L/52 rifled design by the Royal Ordnance Factories, intended for use in armoured fighting vehicles, replacing the older QF 20-pounder (84 mm) gun mounted on the British Centurion tank. [1]