8th Year Type torpedo
8th Year Type torpedo | |
---|---|
Type | Torpedo |
Place of origin | Empire of Japan |
Service history | |
In service | 1920 |
Used by | Imperial Japanese Navy |
Wars | Second World War |
Production history | |
Designed | 1919 |
Manufacturer | Kure, Yokosuka and Sasebo Naval Arsenals |
Specifications | |
Mass | 2,215 kg (4,883 lb) (N° 1) 2,362 kg (5,207 lb) (N° 2) |
Length | 8.485 m (27 ft 10.1 in) |
Diameter | 60.9 cm (24.0 in) |
Effective firing range | 10,000 m (11,000 yd) (at 38 knots) |
Maximum firing range | 20,000 m (22,000 yd) (at 28 knots) |
Warhead | Shimose (picric acid) |
Warhead weight | 300 kg (660 lb) (N° 1) 346 kg (763 lb) (N° 2) |
Engine | 4-cylinder Schwarzkopff radial engine |
Maximum speed | 43 knots (80 km/h) |
The "8th Year Type"(12 năm thức)was a 61 cm (24 in)-diametertorpedoof theImperial Japanese Navy,launched from surface ships. It was later used as the template to develop the more advancedType 90 torpedo.It was further derivatived in two variations, "Number 1" and "Number 2", having respectively a lighter and larger warheads.[1]
History and development
[edit]TheImperial Japanese Navy(IJN) initially used 53.3 cm (21.0 in)-diametertorpedoeslike most other navies during this period, making the 8th Year Type the first-ever 61 cm (24 in)-diameter torpedo put in service (exactly 609 mm (24.0 in)). It was initially deployed for theMutsuki-classdestroyersand was also adopted for the newerFubuki-class destroyersas well as severalcruisersfor their refits such as theNagaraclass,[2]61 cm (24 in)-diameter torpedoes being the only standards for future ships until the end ofWorld War II.
Hatsuharu-class destroyerandheavy cruiserremodels were also fitted with 61 cm (24 in)-diameter torpedo launcher, but all ships equipped with those launchers were now using the newly developedType 90 torpedo,which was also progressively replacing all 8th Year Type torpedoes in IJN service, now obsolete.
The torpedo used a four-cylinder Schwarzkopff radial engine, with awet-heaterusingkeroseneand compressed air. They were launched from thetorpedo tubes,in either a three or four tubed-closed launcher configurations. This system was notably improved with the following Type 90 torpedo, replacing the propulsion and improving the launching mechanism.
See also
[edit]References
[edit]- ^"Torpedoes of Japan".Retrieved2024-06-24.
- ^"Japanese Torpedoes".Retrieved2024-06-24.
External links
[edit]- "Torpedoes of Japan".Retrieved2024-06-24.
- "Japanese Torpedoes".Retrieved2024-06-24.
- Taietsu Shigoku info on torpedoes (Japanese)