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PT809 torpedo boat (1951)


Photo



PT809 1952

Ships


Names Builders Commissioned Losses Transfers Discarding

PT809

Electric Boat, Groton: PT809

2/1951: PT809

none

none

11/1959: PT809


Technical data


Displacement standard, t

 

Displacement full, t

47

Length, m

29.9

Breadth, m

8.08

Draught, m

1.68

No of shafts

4

Machinery

4 Packard diesels

Power, h. p.

10000

Max speed, kts

46

Fuel, t

diesel oil

Endurance, nm(kts)

 

Armament

2 x 1 - 40/60 Mk 3, 2 x 1 - 20/70 Mk 10, 1 x 1 - 81/12 M29 mortar, 4 - 572 TR (never really carried), 4 DC

Electronic equipment 
Complement17


Graphics


<i>PT809 </i>1952
PT809 1952


Ship 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


: PT809 in November 1959 became a civil defence boat Guardian served for escort Presidential yachts and was placed out of service only in 1988.

© Ivan Gogin, 2015