Aeronautical Instruments & Tools
Stock No. 5531
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Radio USAAF Radio Compass DF Loop LP-21-AK Antennae - Click for the bigger picture

Radio USAAF Radio Compass DF Loop LP-21-AK Antennae

This great item comes with interesting provenance. The story associated is that in WW11 a small boy was living close to the perimeter of the USAAF base at Grafton Underwood. He became friendly with and was ‘adopted’ by some of the chaps stationed on the base and like most small boys had a fascination with all aspects of life therein. Over a period of time he acquired a number of souvenirs from obsolete equipment or from aircraft that crashed on or near the base. In early July 1942, the 97th Bombardment Group arrived at Grafton Underwood with 342 and 343rd Squadrons operating the Boeing B-17E Flying Fortress aircraft. The collection of souvenirs we have purchased would seem to relate to this period or later. We understand these antennae were used on a variety of AAF aircraft but because of its association with Grafton Underwood we believe this and other relic parts purchased are all from ‘the Flying Fortress.’ This item is still in original olive green paintwork which is now showing signs of service use with minor corrosion. The mount and electrical connections are still in place and it is clearly marked Loop LP-21-AM.The underside of the mount carries two male sockets, one engraved PL-108 and the other PL-112. We understand these loop antenna picked up ground based signals that were then fed to the radio compass to enable blind approaches to be made accurately in bad weather. Sadly we have no information of which aircraft this was fitted to but would make an imposing display item in a USAAF related collection. Measures 26” x 16” (66 cm x 41 cm). Please also check out the other relic items we will also be listing, all from the same collection.