Ordnance QF 4.5 inch gun Mk II
The Ordnance QF 4.5 inch gun Mk II anti-aircraft gun was a British gun from World War II .
history
As early as the 1920s, the British Army Command demanded a heavy anti-aircraft gun. This should have a caliber of at least 90 mm or even 120 mm. However, developments stalled, so that naval management intervened. She proposed a gun that basically corresponded to a naval gun in caliber 113 mm. In fact, the heavy artillery should only be used in fixed fire points (e.g. in ports or on docks). This made the problem of ammunition supply easier to solve, since the ammunition could be supplied from naval stocks. Despite everything, the gun was designed to be portable. On the mobile carriage, however, the gun was not ready to fire. Several minutes had to be allowed for in order to be ready for fire. In the event of an air raid, this time frame was useless. The gun remained active in fixed positions until the end of the war and was only retired with the appearance of the anti-aircraft missile .
technology
The gun was based on the "4.5-inch" (113 mm) naval gun. The carriage lay on a floor plate. The side straightening range was 360 °. The loading and tube return mechanism were housed in a construction behind the tube. This construction including the tube was supported on two trunnions on the mount. Highly explosive projectiles with a weight of 24.96 kg were fired.
Technical specifications
- Caliber: 113 mm (4.45-inch)
- Weight: 14,965 kg
- Pipe length: 5.10 m
- Elevation range: 0 ° to + 80 °
- Muzzle velocity: 732 m / sec
- effective shot height: 10,520 m
See also
Web links
literature
- Ian Hogg: 20th Century Artillery. 1st edition, Gondromverlag, Bindlach 2001, ISBN 3-8112-1878-6