Hawaii Undersea Research Laboratory Archive

IN THE SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY AT THE UNIVERSITY OF HAWAI'I AT MANOA

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AIR-21: Keystone PK-1 Seaplane (1-P-12)

Composite: PK-1Survey: Pk-1Survey: Pk-2Survey: Pk-3Survey: Pk-4Survey: Pk-5Survey: Pk-6Survey: Pk-7Historic photo: Keystone PK-1 1-8-8 in waterHistoric photo: PK-1 front viewHistoric photo: Keystone PK-1s over Oahu 1933Historic photo: PK-1 seaplanes Ford Island 1933Historic photo: PK-1s off Molokai


HURL Artifact No. AIR-21 *Denotes approximations and speculations
Name: Keystone PK-1 Seaplane (1-P-12) Lost: Unknown
Artifact Type: Seaplane Found: 13-Aug-2006
Nationality: USA Dive No: PIV-157
Class or Make: Keystone Location: Barber's Pt.
Model: PK-1 Depth (m): 811mm
Purpose: Patrol HURL crew: Cremer, Wollerman, Kelley
Serial Number: *(A8507-A8514, A8517-A8524) Additional Dives: P4-294/P5-854
Built/Launched: *1931-1935 (18)
Length: 48' 11"
Width: 72' Upper, 67' 2" Lower
Height: 16' 8.5"
Circumstance of Loss: *Scuttled Crew Personnel/Position: Crew of 5 (able to carry a relief crew for long flights)
Reason of Loss: Replaced by PBY-4 Crew Survivals/Fatalities: Unknown
Artifact History: 18 PK-1's were built. Two crashed at sea (A8515 & A8516). All 18 were assigned to Squadron VP-1 (formerly VF-1). 13 were on inventory in 1938. They were replaced with 15 PBY's in 1939. Squadron conducted a number of war game exercises at French Frigate Shoals and Midway Island in the mid thirties.
Artifact Condition: Wings are missing, but overall in excellent condition. Far better than any of the other known aircrafts of it's type. Fuselage is whole with the exception of the tail flaps and rudder. Squadron numbers are visible on the side. Elephant logo is discernable but mostly covered. Cockpits have windshields present.
Additional Information: All other known planes of this type are located in the Defensive Sea Area. It is unknown why this one is considerably further away and in deeper water. One possibility is it may be one of two aircraft lost operationally. There is other debris in further away and in deeper water. One possibility is it may be one of two aircraft lost operationally. There is other debris in vicinity, but not necessarily associated with this artifact.