A 1953 agricultural aircraft designed by R T Lamson. Two crop sprayers and seeders with a predominant upper gull-wing were built, registered N31237 and N31238. On the former, wing roots served as fuel tanks, the latter had a metal-covered fuselage with internal fuel tank. Wing units were interchangeable on both prototypes, as were all six tail units.
The first flight was on 10 December 1953, piloted by R T Lamson, a former test pilot for Boeing Co.
Production ceased in 1955.
Engine: P&W R-985, 450 hp
Wing span: 33’7″
Length: 26’5″
Height: 10 ft 8 in
Wing area: 350 sq.ft
Empty weight: 3200 lb
Loaded weight: 5600 lb
Useful load: 2400 lb
Cruise speed: 70-90 mph
Stall speed: 35 mph
ROC: 450 fpm
Hopper load: 360 USgal
Price: c.$15,000 (equipped)
Seats: 1
All Aero 