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FIGHTING SHIPS OF THE WORLD
UNITED STATES OF AMERICA
COASTAL FORCES
PT811 torpedo boat (1951)


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 equipmentSPS-5 radar
Complement17


Graphics


<i>PT811 </i>1951
PT811 1951


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