NAVYPEDIA

Ships

Names	Builders	Commissioned	Losses	Transfers	Discarding
PT1-6 1号 - 6号 [1-go - 6-go], 9.1957- PT801-806 1号 - 6号 [1-go - 6-go]	Hitachi Zosen, Kanagawa: PT1, 2 Mitsubishi Zosen, Shimonoseki: PT3, 4 Azuma Zosen: PT5, 6	10-12/1956: PT1-6	none	none	3/1970: PT801, 802 3/1972: PT803-806

Technical data

Displacement standard, t	PT801, 802: 75 PT803, 804: 70 PT805, 806: 75
Displacement full, t	PT801, 802: 97 PT803, 804: 92 PT805, 806: 98
Length, m	PT801, 802, 805, 806: 25.0 PT803, 804: 26.0
Breadth, m	PT801, 802, 805, 806: 6.50 PT803, 804: 6.80
Draught, m	PT801, 802, 805, 806: 1.20 PT803, 804: 1.10
No of shafts	2
Machinery	2 Mitsubishi YV20ZC15/20 diesels
Power, h. p.	4000
Max speed, kts	PT801, 802, 805, 806: 30 PT803, 804: 31
Fuel, t	diesel oil
Endurance, nm(kts)
Armament	1 x 1 - 40/60 Mk 3, 2 - 533 TT, 2 x 4 - 178 Mousetrap Mk 20 ASWRL
Electronic equipment	OPS-4C radar, OQS-1 sonar
Complement	18

Standard scale images

Project history

Authorized in the 1953 programme, MTBs with a little ASW capability. Sonar domes offered considerable resistance at high speed. Nos 1 and 2 had wooden hulls, 3 and 4 aluminium alloy hulls and 5 and 6 steel hulls.

Modernizations

None.

Naval service

All were converted in 1970-1972 to Yard Craft Special Auxiliaries (YAS)