| Year | 1929 |
| Weapon Type | Heavy Gun |
| Origin & Designer | [@designer] |
| Numbers Produced | 150 |
| Crew | 12 |
| Calibre | 149.1mm |
| Elevation | -5° to +43° |
| Traverse | 40° |
| Breech | Interrupted Screw |
| Recoil | Hydropneumatic |
| Gun Sight | Panoramic |
| Gun Mount | [@gun_mounts] |
| Carriage | Box Trail |
| Trailers | [@trailers] |
| Gun Shield | [@gun_shield] |
| Armoured Plate | [@armoured_plate] |
| Barrel Length | 5.963mm (L/40) |
| Overall Length | 8.03m |
| Width | 2.21m |
| Height | 1.07m |
| Weight | Weight in Traction: 15.359 kg (Two loads) Weight in Action: 10.360 kg |
| Round Weight | 20.2 kg (HE) |
| Muzzle Velocity | 875 m/s |
| Feed | [@feed] |
| Magazine Capacity | [@magazine_capacity] |
| Practical Rate of Fire | [@practical_rate_of_fire] |
| Rate of Fire | 4 r.p.m. |
| Maximum Rate of Fire | [@maximum_rate_of_fire] |
| Maximum Ceiling | [@maximum_ceiling] |
| Maximum Ground Range | [@maximum_ground_range] |
| Maximum Range | 19.900m |
| Armour Penetration | [@armour_penetration] |
| Traction | Motorised (Type 92A Tractor) |
| Variants | [@variants] |
| Notes | The type 89 was the standard heavy gun of the IJA. It had to be transported in two loads and took considerable time to be emplaced and ready for firing. The problems due to weight and transport mainly relegated it for home use, but some served in Malaya and the Philippines. |