NAVYPEDIA

Photo

PT811 1951

Ships

Names	Builders	Commissioned	Losses	Transfers	Discarding
PT811, 12.1962- PTF2	Trumpy, Annapolis: PT811	3/1951: PT811 12/1962: PTF2 (2nd time)	none	none	11/1959: PT811 (1st time) 8/1965: PTF2

Technical data

Displacement standard, t
Displacement full, t	90
Length, m	28.7
Breadth, m	7.60
Draught, m	1.27
No of shafts	4
Machinery	4 Packard petrol engines
Power, h. p.	10000
Max speed, kts	46
Fuel, t	petrol
Endurance, nm(kts)
Armament	2 x 1 - 40/60 Mk 3, 2 x 2 - 20/70 Mk 24, 1 x 1 - 81/12 M29 mortar, 4 - 572 TR (never really carried), 4 DC
Electronic equipment	SPS-5 radar
Complement	17

Graphics

Project history

PT809-812 were intended to embody wartime design lessons. All were aluminium; 809 was riveted, 810 riveted and welded, and 811 and 812 all-welded; each was designed to mount two single 40mm guns (one in 812), two twin 20mm, one 81mm mortar, one Mk 107 rocket launcher (812 only), four torpedo racks, and four depth charge racks; speed was set at 46kts (43 for the somewhat longer 812). Although these figures represented a considerable advance on Second World War practice, they still did not make up for the lack of an operational requirement for such coastal craft.

Modernizations

None.

Naval service

: PT811 was stricken 1.11.1959 but was reinstated in December 1962 as fast patrol craft PTF2.

© Ivan Gogin, 2015