Thompson Aircraft Co Boxmoth

Thompson expanded his experiment in powering a boxkite with a model airplane engine into full-size reality with twin vinyl-covered aluminum-tube frames and a 55hp snowmobile motor and a prop in 1972. A two-place tandem “flying box-kite” a test pilot, reported in his own words, “Great stability. I was 35 feet off the ground before I realized I had taken off!”

FAA registration N64492 was issued on 30 March 1973, seen as still valid in mid-2007. Marketed plans for $75.

Thompson T-4875

Built by Paul R Thompson in 1929 as a two place open cockpit monoplane, the T-4875 was sold for only $10 to M J Tuchey, who put it in storage in 1930, then returned it to Thompson (no price stated) in 1937. Refitted with an Hisso “Pup” engine, it was sold to A G Clark on 9/29/38, who ostensibly flew it until its registration (N9496 c/n T-1) expired on 15 January 1940 and was cancelled.

Engine: 50hp Anzani
Wingspan: 33’0″
Length: 22’6″