- Yes, for tree
- Yes, for premium
- Yes, for event/gift
- No
Torpedo Boat No.10
魚雷艇10号
Briefly: The first Japanese MTB that speed reached 40 knots!!
History
PT10 is Japanese experimental Motor Torpedo Boat / Motor Subchaser during cold-war era. For development of No.11 class PT, experiences of Torpedo Boat No.10 (PT-810) and High-speed No.6 (ASH-6) were used.
Launch ceremony’s postcard of High-speed No.6 (ASH-6)This boat was high-speed rescue boat for prototype of next torpedo boats.
Since 1950s Japanese build 8 MTBs, but there speed is not good (28~33 knots). Because of it Japanese start to research high-speed boat.
At first, they import British Dark class patrol boat. This boat built by Sanders Roe, and it hull it alloy framing and wooden decks and skin (Wikipedia says Japanese one is Aluminum, but Japanese documents says that boat is not Aluminum boat.). This boat named PT No.9, and used for research.
Design of engine cradle, flexible-shaft of gear coupling and crescent type propeller wing is affect to design of Torpedo boat No.10.
Also, its hull design (omega-plane V shape) is modified from No.7 class and hull sonar dome was removed.
This boat was designed for prototype of next torpedo boats, but by the problem of budgets, they need to wait 1970s.
Engine of this boat is Napia Deltic diesel engine that same as Dark class. In the test of propeller, this boat reach to 47.72 knots. In that time it was world record of diesel engine boat.
- Design number: T109
- Hull number: PT-810
- Name: No.9
- Keel laid: January 30, 1961
- Launch: September 28, 1961
- Complete: February 26, 1965
- Retire: April 10, 1975
- Builder: Mitsubishi Shimonoseki shipyard
Design
Compare to No.7 class, Mousetrap anti-sub mortar removed, and hull sonar dome replaced to sonobuoy and dipping sonar.
Main gun is conventional Bofors 40mm L/60 machine gun for anti-air and surface. In this class, they equipped two single mount on bow and stern.
Torpedo was 533mm Experimental Type 54 torpedo. It is heavy-weight anti-submarine homing torpedo but specification was not good.
Experimental Type 54 Torpedo
Display of Experimental Type 54 Torpedo Model 3 kai 1Experimental Type 54 Torpedo was Japanese anti-submarine heavy-weight homing torpedo developed for destroyers and torpedo boats in 1950s.
Length 760 cm Caliber 533 mm Speed 24 kt (44.448 km/h) Max range 6,000 m Explosives TNT, 100 kg Guidance system Passive acoustic homing Engine Lead-acid battery/ DC motor (33kW/44 hp)
Specification
| Standard displacement | 90 t |
| Length | 32.0 m |
| Width | 8.5 m |
| Draft | 1.1 m |
| Speed | 40 kt |
| Crew | 26 |
| Engine | 3x Napia Deltic diesel engine |
| Power | 9,400 HP |
| Weapon | 2x 40mm L/56 Bofors Mk.3 |
| 4x 533mm torpedo tube |
For game
It will be interesting addition of torpedo boat beforePT-15. It had excellent high-speed and useful two 40mm Bofors L/60s, but poor torpedo equipment is not a good.
Reference
Society of Naval Architects of Japan (1977) “History of shipbuilding in Showa era vol.2” Hara-Shobou publishers pp.600-601
Technical Research and Development Institute, 2002 “50 years history of Technical Research and Development Institute (防衛庁技術研究本部五十年史)”, Ministry of Defense, pp.107
国立国会図書館デジタルコレクション
Koda Yoji, 2013 “History of Domestic Built Destroyers of JMSDF (5), before 1st defense power development plan, FY Showa 29-32” Ships of the World, 778, pp.150