First flown on 14 Feb 1950, the Southern Airmotive Special (possibly N3900) was a single seat open cockpit biplane. It was operated as the aerobatic ‘Roberts Special”, piloted by Charles Roberts.
Only the one was built.
Engine: Continental C-85, 85hp
Wingspan: 20’4″
Length: 16’2″
Max speed: 130 mph
Cruise speed: 118 mph
Stall: 43 mph
Range: 350 mi
All Aero 