US M19 60 mm Mortar
Technical Summary Bore diameter: 60 mm (2.36in)
Barrel Length: 819 mm (32.2in)
Weight as fired: 20.5 kg (45.2 lb) (M5 Mount); 9.3 kg (20.5 lb) (M2 Baseplate)
Elevation: +40° to +85° (M5 Mount); Free on M1 Mount
Traverse: 14° on M5 mount; free on M1 mount
Weight of bomb: 1.36 kg (3.0 lb)
Maximum Effective Range: 1790 m (1960 yards)
Max ROF: 18 sustained rounds/minute up to 30 maximum rounds/minute
Muzzle Velocity: 168 m/s (550 ft/s)
The M19 Mortar is a smoothbore, muzzle loading, very light and simple, high angle of fire weapon for light infantry support developed and produced in the United States.
It has been made obsolete and supplanted by the more modern M224 Mortar, which has a much farther range.
The original M19 just had a simple spade-like baseplate and leaving the elevation and traverse free for the firer. This of course was too inaccurate and the infantry initially refused the M19. A new mount, the M5, was developed which used a conventional baseplate and bipod with elevation and traverse adjustment. This gave the M19 its accuracy but made it heavier than the M2 Mortar with less range.
It fired the ammunition from the M2 mortar which it was supposed to replace. The 60-mm mortar is used by the infantry to lob explosive shells at well-protected hostile locations. The weapon can also fire illumination rounds to light up the battlefield at night, and smoke rounds to provide concealment during the day.
The M19 was developed in 1942 as a replacement for the M2 Mortar. It was a very simple and light weapon but was too inaccurate without a mounting. The M5 mount was developed for it, but made it heavier and had less range than the older M2 mortar. Very few M19s were made, but some survived in US service to fight in the Vietnam War. Many M19s were scrapped or exported.
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