Allied Warships

Motor torpedo boats

ELCO 77' class

69 ships


The motor torpedo boat USS PT 20 of the US Navy.

Technical information

TypeMotor torpedo boat
Displacement46 BRT 
Length77 feet 
Complement10 men 
Armament1 20mm
4 MG (2x2)
4 21" torpedo tubes 
Max speed42 knots
Engines3 engines, 3 shafts 
Power3600 HP 
Notes on class 


All ships of the ELCO 77' class


Royal Navy (more on Royal Navy)

HMS MTB 307 (MTB 307)
HMS MTB 308 (MTB 308) Lost on 14 Sep 1942
HMS MTB 309 (MTB 309)
HMS MTB 310 (MTB 310) Lost on 14 Sep 1942
HMS MTB 311 (MTB 311) Lost on 2 May 1943
HMS MTB 312 (MTB 312) Lost on 14 Sep 1942
HMS MTB 313 (MTB 313)
HMS MTB 314 (MTB 314) Lost on 14 Sep 1942
HMS MTB 315 (MTB 315)
HMS MTB 316 (MTB 316) Lost on 17 Jul 1943
HMS MTB 317 (MTB 317)
HMS MTB 318 (MTB 318)
HMS MTB 319 (MTB 319)
HMS MTB 320 (MTB 320)
HMS MTB 321 (MTB 321)
HMS MTB 322 (MTB 322)
HMS MTB 323 (MTB 323)
HMS MTB 324 (MTB 324)
HMS MTB 325 (MTB 325)
HMS MTB 326 (MTB 326)


US Navy (more on US Navy)

USS PT 20
USS PT 21
USS PT 22
USS PT 23
USS PT 24
USS PT 25
USS PT 26
USS PT 27
USS PT 28 Lost on 12 Jan 1943
USS PT 29
USS PT 30
USS PT 31 Lost on 20 Jan 1942
USS PT 32 Lost on 13 Mar 1942
USS PT 33 Lost on 15 Dec 1941
USS PT 34 Lost on 9 Apr 1942
USS PT 35 Lost on 12 Apr 1942
USS PT 36
USS PT 37 Lost on 1 Feb 1943
USS PT 38
USS PT 39
USS PT 40
USS PT 41 Lost on 15 Apr 1942
USS PT 42
USS PT 43 Lost on 11 Jan 1943
USS PT 44 Lost on 12 Dec 1942
USS PT 45
USS PT 46
USS PT 47
USS PT 48
USS PT 49 (To Britain as BPT 1)
USS PT 50 (To Britain as BPT 2)
USS PT 51 (To Britain as BPT 3)
USS PT 52 (To Britain as BPT 4)
USS PT 53 (To Britain as BPT 5)
USS PT 54 (To Britain as BPT 6)
USS PT 55 (To Britain as BPT 7)
USS PT 56 (To Britain as BPT 8)
USS PT 57 (To Britain as BPT 9)
USS PT 58 (To Britain as BPT 10)
USS PT 59
USS PT 60
USS PT 61
USS PT 62
USS PT 63 Lost on 18 Jun 1944
USS PT 64
USS PT 65
USS PT 66
USS PT 67 Lost on 17 Mar 1943
USS PT 68 Lost on 30 Sep 1943


69 Motor torpedo boats of the ELCO 77' class. 19 of them were lost.

See all Motor torpedo boat classes.


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