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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 M119 howitzer is a lightweight 105 mm howitzer, used by the United States Army.It is the American licensed version of the British L119 light gun.The M119 is typically towed by the M1097 or M1152 High Mobility Multi-Purpose Wheeled Vehicle (HMMWV), and can be easily airlifted by helicopter, or airdropped by parachute.
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.
After World War I, the U.S. Army Ordnance Department studied various captured German 105 mm-caliber howitzers and developed the 105 mm Howitzer M1920 by using the Carriage M1920. A box trail carriage design (the M1925E carriage) and two other split trail designs (the T1 and T2) were also developed, but the original split trail design was found ...
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.