Type 91 10 cm howitzer

Type 91 10 cm 105 mm howitzer
Type 91 10 cm 105 mm howitzer
Type	light howitzer
Place of origin	Empire of Japan
Service history
In service	1931-1949?
Used by	Imperial Japanese Army  Republic of China (NRA)  People's Republic of China (PLA)
Wars	Second Sino-Japanese War Soviet-Japanese Border Wars World War II Chinese Civil War
Production history
Designed	1927-1931
Manufacturer	Osaka Arsenal
Unit cost	26,000 yen ($6,986 USD) in August 1939[1][2]
Produced	1931-?
No. built	1,100 + 100 (Motorized Model)
Variants	Steel tires on artillery wheels, Wheels and Tires
Specifications
Mass	1,500 kg (3,300 lb)[3] Firing 1,979 kg (4,363 lb) Traveling
Length	4.72 m (15 ft 6 in) Firing 8.94 m (29 ft 4 in) Traveling
Barrel length	2.54 metres (8 ft 4 in) L/24
Width	1.57 m (5 ft 2 in) Track 1.84 m (6 ft) Maximum
Height	1.73 m (5 ft 8 in)
Shell	105 x 243mm R[4]
Shell weight	15.7 kg (34 lb 10 oz)
Caliber	105 mm (4.1 in)
Breech	Interrupted screw
Recoil	Hydro-pneumatic
Carriage	Split trail, demountable recoil spade plates, trail blocks integral to trails. Wheels and Tires or Steel tires on artillery wheels.
Elevation	-5° to +45°
Traverse	20° right,20° left
Rate of fire	15 Minutes 2 rpm Maximum 6-8 rpm Continuous 50-60 rph
Muzzle velocity	546 m/s (1,791 ft/s)
Maximum firing range	10,771 m (11,779 yd)
Feed system	Manual
Sights	Panoramic

The Type 91 10 cm howitzer (九一式十糎榴弾砲, Kyūisshiki Jyūsenchi Ryūdanhō) was a 105 mm (4.13 in) howitzer used by the Imperial Japanese Army during the Second Sino-Japanese War and World War II. As the standard Japanese light howitzer of the period, it was influenced by Schneider designs and was considered to be light, robust and reliable. ^[5] Type 91 howitzers were issued to artillery regiments where they would supplement 75mm field guns. ^[6] The Type 91 number was designated for the year the gun was accepted, 2591 in the Japanese imperial year calendar, or 1931 in the Gregorian calendar.^[7]