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WW II PATROL CRAFT (PCs)

WW II PATROL GUNBOAT MOTOR (PGMs)

WW II PATROL CRAFT ESCORT(PCEs)

WW II PATROL CRAFT SWEEPER (PCSs)

WW II SUBCHASER (SCs)

CYCLONE CLASS PATROL COASTALS
(PCs and WPCs)

 

INFORMATION ON WWII PGMs

PGM

PC's CONVERTED TO PGM

There was one major modification of the 173-foot PC with twenty-four ships being converted to Patrol Gunboat, Motor (PGM). The PGM was designed to operate with PT squadrons, supplying added fire power, during enemy "barge-busting" operations. But with their slower speed they were unable to keep up with the PTs. The PGM later proved more effective working with mine sweepers, blowing up mines cut loose by the sweepers.

Modifications included removal and replacement of the superstructure with a small, protected, pilot house abaft its previous location. The mast was shortened and fitted with SO-8 radar and TCS radio gear. All ASW gear, sonar, depth charges, K-guns and Mousetraps were removed.

Six 20mm guns and one twin, power-driven, 40mm were installed on deck in splinter shields. A twin .50 caliber machine gun and a 60mm mortar were also added.
PGM 9 (ex PC 1548) was the prototype and was converted while under construction She was unique in being the only ship of the 24 having a sextuple rocket launcher aft..

PGM 9 was completed in June, 1944. PGMs 10 - 32 were converted between October 1944 and March 1945.

PC PGM PC PGM PC PGM
1548 9 1189 17 1556 25
805 10 1255 18 1557 26
806 11 1550 19 1558 27
1088 12 1551 20 1559 28
1089 13 1552 21 1565 29
1090 14 1553 22 1566 30
1091 15 1554 23 1567 31
1148 16 1555 24 1568 32

PGMs - LOST OR DAMAGED

PGM 18 Sunk by mine off Okinawa 04-07-45
PGM 11 Grounded, Okinawa 04-14-45
PGM 17 Grounded, Okinawa 05-04-45
PGM 24 Damaged in collision, Okinawa 06-14-45

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