Cape Field at Fort Glenn
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Fort Glenn Airfield in 1942
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Location | Umnak Island, Alaska |
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Built | 1942 |
Architect | U.S. Army |
NRHP Reference # | 87001301 |
Significant dates | |
Added to NRHP | May 28, 1987 |
Designated NHLD | May 28, 1987 |
Cape Field at Fort Glenn was a military site significant for its role in World War II. It consists of Fort Glenn, an airfield of the United States Army Air Corps later renamed Cape Air Force Base, and the adjacent Otter Point Naval Air Facility, both located on Umnak Island in the Aleutian Islands of southwestern Alaska. The site was listed on the National Register of Historic Places and declared a National Historic Landmark in 1987.
Because of the perceived vulnerability of Alaska immediately following the Pearl Harbor Attack, additional Army Air Corps units were authorized by General Henry H. Arnold for Alaska and plans were made to send modern aircraft to the Territory to replace the obsolete aircraft assigned. However the Alaskan Air Force had few airfields to accommodate the additional aircraft and units being assigned.
Along with new airfields on the mainland and Southwest Alaska, new air bases were planned for the air defense of the Aleutians to Dutch Harbor. Construction of the new bases on Umnak and Cold Bay began in January 1942 in secret, with construction reportedly disguised as a cannery. The first United States Army engineers landed at what would become Fort Glenn Army Air Base on 17 January and construction began by the end of the month. A Naval airfield, Otter Point Naval Air Facility was adjacent to the Army Airbase. The 807th Engineering Battalion (Aviation) was brought in from Yukat to perform the construction along with a detachment of the Navy Seabee 8th Construction Battalion.