| Year | 1931 |
| Weapon Type | Light Field Howitzer |
| Origin & Designer | Japan/Osaka Arsenal |
| Numbers Produced | 1.100 (Horse Drawn) 100 (Motorised) |
| Crew | 7 |
| Calibre | 105mm (105x243R) |
| Elevation | -5° to +45° |
| Traverse | 40° |
| Breech | Horizontal Sliding Wedge |
| Recoil | Hydropneumatic |
| Gun Sight | Panoramic |
| Gun Mount | [@gun_mounts] |
| Carriage | Split Trail |
| Trailers | [@trailers] |
| Gun Shield | 3MM |
| Armoured Plate | [@armoured_plate] |
| Barrel Length | 2.540mm (L/24) |
| Overall Length | 4.72m |
| Width | 1.82m |
| Height | 1.72m |
| Weight | 1.495 kg (Horse Drawn) 1.750 kg (Motorised)< |
| Round Weight | 15.8 kg (HE) |
| Muzzle Velocity | 546 m/s |
| Feed | [@feed] |
| Magazine Capacity | [@magazine_capacity] |
| Practical Rate of Fire | [@practical_rate_of_fire] |
| Rate of Fire | 8 r.p.m. |
| Maximum Rate of Fire | [@maximum_rate_of_fire] |
| Maximum Ceiling | [@maximum_ceiling] |
| Maximum Ground Range | [@maximum_ground_range] |
| Maximum Range | 10.771m |
| Armour Penetration | [@armour_penetration] |
| Traction | Horse Drawn (Eight Horses) or Motorised (Type 98 Tractor) |
| Variants | [@variants] |
| Notes | The type 91 was the standard light howitzer of the period. It was based on an old Schneider design and was light, robust and reliable. Type 91s were issued to artillery regiments and supplement the light 75mm field guns. It first saw action in 1939 against the Soviets and served right through World War Two. |
