|
Names |
31RP661-669 31RP6610-6699 31RP66100-66161 |
|
Builders |
United BB, Bellingham: 31RP661-31RP66161 |
|
Commissioned |
1966: 31RP661-66161 |
|
Losses |
? |
|
Transfers |
late 1960s, South Vietnam: nearly all |
|
Discarding |
late 1980s: 4 units |
|
Displacement standard, t |
|
|
Displacement full, t |
6.5 |
|
Length, m |
9.50 |
|
Breadth, m |
3.20 |
|
Draught, m |
0.60 |
|
No of shafts |
2 water-jet pumps |
|
Machinery |
2 General Motors diesels |
|
Power, h. p. |
432 |
|
Max speed, kts |
25 |
|
Fuel, t |
diesel oil 0.6 |
| Endurance, nm(kts) | |
|
Armament |
1 x 2 - 12.7/90, 1 x 1 - 12.7/90, 1 x 1 - 60/12 M19 mortar, 1 x 1 - 40/10 M19 grenade launcher |
|
Electronic equipment |
none |
| Complement | 4 |
Project history: The Patrol Boat, River was smaller than the PCF, with an open-topped conning position, and had a fiberglass hull lined with plastic foam; it was propelled and steered by water-jets, for an extremely shallow draft (0.9m compared to 1.2m for a Swift).
Modernizations: None.
Naval service: The great majority of US PBRs were transferred to South Vietnam. The PBRs were based afloat, LST846, 821, 838 and 786 being converted to support them. In 1994, twenty-seven PBR Mk II remained. Some had been used during the 1991 Gulf conflict.

Vietnamese PBR Mk I 1970
© Ivan Gogin, 2015