| History | |
|---|---|
 Japan | |
| Name | I-29 |
| Builder | Yokosuka Naval Arsenal |
| Launched | 29 September 1940 |
| Commissioned | 27 February 1942 |
| Nickname(s) | Matsu |
| Fate | Sunk by USS Sawfish, 26 July 1944 |
| General characteristics | |
| Class and type | Type B1 submarine |
| Displacement |
|
| Length | 108.5 m (356 ft) |
| Beam | 9.3 m (31 ft) |
| Draught | 5.12 m (16.8 ft) |
| Propulsion | 2-shaft diesel (12,400 hp (9,200 kW)) and electric motor (2,000 hp (1,500 kW)) |
| Speed | 23 knots (43 km/h) surface, 8 knots (15 km/h) submerged |
| Range | 14,000 nautical miles (26,000 km) at 16 knots (30 km/h) |
| Test depth | 100 m (330 ft) |
| Complement | 101 officers and men |
| Armament | 6 × 533 mm torpedo tubes forward (17 torpedoes) + 1 × 14 cm/40 11th Year Type naval gun[1] |
| Aircraft carried | one Yokosuka E14Y "Glen"'Type 0' reconnaissance seaplane |
I-29, code-named Matsu (松, Japanese for "pine tree"), was a B1 type submarine of the Imperial Japanese Navy used during World War II on two secret missions with Germany. She was sunk while returning from the second mission.
- ^ Campbell, John Naval Weapons of World War Two ISBN 0-87021-459-4 p.191