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FIGHTING SHIPS OF THE WORLD
UNITED STATES OF AMERICA
COASTAL FORCES
TUCUMCARI gun hydrofoil (1968)


Ships


Names Builders Commissioned Losses Transfers Discarding

PGH2 Tucumcari

Boeing, Seattle: PGH2 Tucumcari

3/1968: PGH2 Tucumcari

PGH2 Tucumcari (16.11.1972)

none

none


Technical data


Displacement standard, t

57

Displacement full, t

58

Length, m

21.9

Breadth, m

5.90

Draught, m

4.20 (foils extended) / 1.40 (foils retracted)

No of shafts

2 water-jets (for foil-borne) / 1 shaft (for hull-borne)

Machinery

CODOG: 1 Bristol Siddeley Marine Proteus gas turbine (foil-borne) / 1 diesel (hull-borne)

Power, h. p.

3040 / 160

Max speed, kts

40 / 6

Fuel, t

diesel oil

Endurance, nm(kts) 
Armament

1 x 1 - 40/60 Mk 3, 2 x 2 - 20/70 Mk 24, 1 x 1 - 81/12 M29 mortar

Electronic equipmentradar
Complement13


Project history

By the early 1960s interest had shifted towards the fast gunboat role, and it appeared that a relatively small hydrofoil could duplicate many of the qualities of the larger Asheville class fast gunboat. Two competitive prototypes were built under the FY66 (SCB 252) programme; the Grumman Flagstaff and the Boeing Tucumcari. At one time a follow-on class of thirty-four hydrofoils was planned, with features borrowed from both. They differed largely in propulsion, Grumman using a geared propeller with the main lifting surface forward; Boeing, water-jets with the main foil surfaces aft. Both were tested in Vietnam, returning home in 1970. Originally armed with 40mm gun forward.

Modernizations

1971: - 1 x 1 - 81/12 mortar; + 1 x 2 - 20/70 Mk 24

Naval service

: Tucumcari ran aground on a coral reef at Caballo Blanco (Vieques Island, Puerto Rico) 16.11.1972 and wrecked, plans for her repair were dropped due to high costs.

© Ivan Gogin, 2015