Page:Operation Crossroads 1946.pdf/276

 USS Apogon (SS-308)

APL-27 Task U n l t andFunctton

1105-1130

Party came aboard to inspect radioactiv-

1130 1500

Pressure gaugeparty left. Party came aboard to inspect food and medical supplies. Electronics party came aboard and medical party left. Electronics party left the boat. Party came aboard to read foil gauges.

ity.

APL-27. a non-self-propelled barracks ship, was a member of TU 1.2.12 (Kwajalein Maintenance Unit). It was used as a decontamination station at Kwajalein and was not atBikini for either shot.

1520 July-6 August At Kwajalein. 9 August

Taken in tow by USS Sioux(ATF-75) Bikini.

1545 1650-1655

to

10-23 August Moored alongside target vessel USS Geneva (APA-86)

.

24 August Taken 25 August

4 July 0805-0930 1000-1013 1010-1105

in tow by ATR-87 for Kwajalein. 6 July 0900-0930

Anchored in Kwajalein. berth 27.

APL-27 remained at Kwajalein until July 1947. 0957-1015

Party came aboard to check instruments. Party c a m aboard to check instruments. Electronics party aboardto check instrument s

.

Party came aboard €or electronics inspect ion. Party came aboard to remove ocientometers.

USS APOGON (SS-30B)

8 July 0935-1005

Crew S l z e5:4 30 June 1946 BlklnA l tolA l r r l v a l :B e f o r e Crew L o c a t l o n for Shot ABLE: USS B o t t l n e a u( A P A - 2 3 5 ) Crew L o c a t l o n for Shot 8AKER: B o t t l n e a u Shot ABLE L o c a t l o n1:, 0 0 0y a r d s ( 9 1 4 m e t e r s ) SSE Shot BAKER L o c a t l o n : 850 yards ( 7 7 7 m e t e r s ) SSE Sunk 25 J u l y 1946, 8 l C l n lA t o l l

1200-1600 9 July 0810-0945

Task U n l t a n dF u n c t l o n

1115-1200

The submarine A m o n served in Submarine Division 112 of TU 1.2.4 (Submarine Unit1 as a target vessel during CROSSROADS. Apoqon carried special test torpedoes for studies of atomic blast effects on them.

1357

Shot ABLE ( 1 J u l y 0, 9 0 0 )

1 July

2 July 1500 1532 1550 1554 1610

1752 1845-1850 3 July 0740 0853 0920 0930 1045

1420

Anchored in assignedberth in target array (1.000 yards [914 meters] SSE of surfacezero) inBikiniLagoon. Crew evacuated to Bottineau 20 nmi (37 km) from shot site. Reboarding teams A and B left Bottineau en route to USS Haven (AH-12). Picked up radiological monitor from H B. Apoqon boarded. Topside reported radiologically safe. Comnenced reentry of boat through after engine roomhatch.Begantesting for hydrogen gas and other explosive mixtures.Hydrogengaswastheonlygas found. Below deck spaces testingcompleted: normal p o w e r and lighting restored. Engaged in maneuvering watch.

11 July 0830-1200 1315-1635 1405-1540 12 July 0908 0930-0945 1502

Boat trip to Bottineau to pick up Team Char lie. Inspection of boat's safety film. Inspection of instruments; film safety inspection party left. "C" Party returned to boat fcom &go-

m.

Pressure gauge team aboard to inspect gauges; instrument party left.

10 July 0945-1019 1110 1243 1302-1435

13 July 0940-0945 0945 1120-1140 14 July 1040-1045 1330-1625

271

Los Alamos Instrumentation Party aboard to check instruments. Party aboard to photograph blast gauges. Bureau of Ships InstrumentationParty aboard to Install impulse velocity gauges. USS Kenneth Whitinq (AV-14) instrumentation group came aboard to remove electronicinstrumentsfromforwardbridge deck. Moored portside to target submarine E Parche(85-384).alongside USS Fulton (AS-ll), in berth 231. Target submarine USS Skipjack (SS-184) came alongside to port. Party aboard to check torpedoes. Skiplack got underway. Anchored in berth 251, Bikini. Working party came aboard to check firecontrol gear. Technician aboard. Party aboard to check torpedo data computer. Party aboard to remove instruments. Mooredstarboard side to portside of Fulton. TransferredtorpedoesfromFultonto Apoqon Anchored in29 fathoms (53 meters) of water in target array.

.

Damage inspection group came aboard from USS Uhaston (AP-7). Sonar inspection party came aboard. Photographic party came aboard to take pictures of the topside. Party came aboard to deliver safety film. Party came aboardtoinspect salvage fittings.