NAVYPEDIA

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  Pontchartrain 1945

Ships

No	Name	Yard No	Builder	Laid down	Launched	Comm	Fate
WPG39, 5.1966- WHEC39	Owasco		Western Pipe & Steel, San Francisco	11.1943	18.6.1944	5.1945	sold 10.1974
WPG40, 5.1966- WHEC40	Winnebago		Western Pipe & Steel, San Francisco	12.1943	2.7.1944	6.1945	sold 10.1974
WPG41, 5.1966- WHEC41	Chautauqua		Western Pipe & Steel, San Francisco	12.1943	14.5.1944	8.1945	sold 1976
WPG42, 5.1966- WHEC42	Sebago (ex-Wachusett)		Western Pipe & Steel, San Francisco	6/1943	28.5.1944	9.1945	for disposal 4.1972
WPG43	Iroquois		Western Pipe & Steel, San Francisco	1943	1944	2.1946	sold 6.1965
WPG44, 5.1966- WHEC44	Wachusett (ex-Huron)		Western Pipe & Steel, San Francisco	1943	1944	3.1946	sold 11.1974
WPG64, 5.1966- WHEC64	Escanaba (ex-Otsego)		Western Pipe & Steel, San Francisco	1943	1945	3.1946	sold 1974
WPG65, 5.1966- WHEC65	Winona		Western Pipe & Steel, San Francisco	1943	1945	4.1946	sold 1976
WPG66, 5.1966- WHEC66	Klamath		Western Pipe & Steel, San Francisco	1943	1945	6.1946	sold 11.1974
WPG67, 5.1966- WHEC67	Minnetonka		Western Pipe & Steel, San Francisco	1943	1945	7.1946	sold 1976
WPG68, 5.1966- WHEC68	Androscoggin		Western Pipe & Steel, San Francisco	1943	1945	9.1946	sold 10.1974
WPG69, 5.1966- WHEC69	Mendota		Coast Guard Yd, Baltimore	1943	1944	6.1945	sold 1974
WPG70, 5.1966- WHEC70	Pontchartrain (ex-Okeechobee)		Coast Guard Yd, Baltimore	7.1943	29.2.1944	7.1945	sold 1974

Technical data

Displacement standard, t	2216
Displacement full, t	2660
Length, m	77.7
Breadth, m	13.1
Draught, m	4.88 full load
No of shafts	1
Machinery	1 electric motor, 2 Westinghouse turbine-generators, 2 Foster Wheeler boilers
Power, h. p.	4000
Max speed, kts	19
Fuel, t	oil 390
Endurance, nm(kts)	12200 (12)
Armament	WPG39-42, 69, 70: 2 x 2 - 127/38 Mk 12, 2 x 4 - 40/56 Mk 1.2, 4 x 1 - 20/70 Mk 4, 1 x 24 - 178 Hedgehog Mk 11 ASWRL, 6 DCT, 2 DCR, QC sonar WPG43, 44, 65-68: 2 x 2 - 127/38 Mk 38, 2 x 4 - 40/60 Mk 2, 4 x 1 - 20/70 Mk 10, 1 x 24 - 178 Hedgehog Mk 11 ASWRL, 6 DCT, 2 DCR, QC sonar
Electronic equipment	presumably SF or SG or SL or SU, Mk 12.22 or Mk 25 radars
Complement	276

Standard scale images

Graphics

Project history

"Treasury" class cutters at all advantages had one significant lack: high (to Coast guard measures) cost. For this reason building of three last ships of this class have refused, re-ordered them under the new project of the smaller cutter. They have returned to single-shaft turbo-electrical machinery (as well as on "Lake" class), armament structure and requirements on speed having left without changes, in comparison with "Treasury".

Building of three cutters was originally planed, but in the summer of 1941 ten more were added which should replace "Lake" class ships, transferred to Royal Navy.

Low priority of program in days of war has led to that ordered in 1941 ships were launched only in 1944-1945. Possibility of the account of experience of operations became unique positive line of this long-term construction. Main guns became dual-purpose, AA armament was strengthened. Seaplanes have refused.

Modernizations 1.

1946, all: 2 x 2 - 127/38 Mk 38, 2 x 4 - 40/60 Mk 2, 4 x 1 - 20/70 Mk 10, 1 x 24 - 178 Hedgehog Mk 11 ASWRL, 6 DCT, 2 DCR, SF or SG or SL or SU, Mk 12.22 or Mk 25 radars, QC sonar

1966, most: - 2 x 2 - 127/38, 2 x 4 - 40/60, 4 x 1 - 20/70, 6 DCT, 2 DCR, SF/SG/SL/SU, Mk 12.22/25 radars, QC sonar; + 1 x 1 - 127/38 Mk 30, 2 x 3 - 324 TT (not on all), SPS-23, SPS-29, Mk 26, Mk 27 radars, SQS-1 sonar.

Naval service

No significant events.