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Since the early 21st century, most NATO armies have settled on 155 mm (6.1 in) weapons as having a good compromise between range and destructive power whilst having a single calibre, which simplifies logistics; however some military forces have retained 105 mm (4.1 in) towed howitzers for their lighter weight and greater portability, including their rapid airlift and airdrop capabilities.
During the 1920s, the Reichswehr carried out analyses that indicated the 105 mm projectile was more effective than a 75 mm equivalent, without a major increase in cost. [4] On 1 June 1927, the Army Ordnance Office ( Heereswaffenamt ) issued Secret Command Matter No. 59/27, calling for the development of a new light field howitzer.
The Type 91 10 cm howitzer was a standard 105 mm artillery piece of extremely light construction relative to range and weight of projector. [9] It can be identified by its demountable spade plates, long cradle extending almost to muzzle end of tube, a hydro-pneumatic recoil mechanism, Split trail, and interrupted screw breech mechanism. It was ...
The ammunition to be used was the 105 mm Fd Mk 2 ammunition used in the L13 ordnance of the gun equipment 105 mm L109 (better known as the "Abbot self-propelled gun"). This ammunition uses electrical instead of percussion primers and is an entirely different design from the US M1 type ammunition as used in the L5 pack howitzer.
Example photo of the over-penetration of a fragmenting projectile. This class of projectile is designed to break apart on impact whilst being of a construction more akin to that of an expanding bullet. Fragmenting bullets are usually constructed like the hollow-point projectiles described above, but with deeper and larger cavities.
For example, the detonation of an average 105 mm shell produces several thousand high-velocity (1,000 to 1,500 m/s) fragments, a lethal (at very close range) blast overpressure and, if a surface or sub-surface burst, a useful cratering and anti-materiel effect – all in a munition much less complex than the later versions of the shrapnel shell.
The CN 105 F1 was designed at the end of the 1950s by the arsenal of Bourges (EFAB) under the project name D1512, its development was completed in 1962 and the gun was registered as 105 Mle 62 [3] (an abbreviated version of 105 mm 1962 Model) which in turn took the designation of CN 105 F1 after being fitted with its armored gun mantlet.
The 10.5 cm Feldhaubitze 98/09 (10.5 cm FH 98/09), a short barreled (1625 mm) 105mm howitzer, also referred to as the 10.5 cm leichte Feldhaubitze (light field howitzer) 98/09, was used by the German Empire, Kingdom of Romania as well as the Ottoman Empire in World War I and after. It had a maximum range of 6,300 metres (20,700 ft).