Designed by W E Stoelk, the steel-tube framework single-place monoplane was built by Stoelk for W G Hacker as a prototype for planned production at an estimated $1,800. Height was less than six feet, making it one of the smallest planes at the time built following federal guidelines.
One was built, N962N c/n 101, registered as Hacker, and fist flew on 9 November 1930, piloted by L D “Dutch” Miller.
It was placed in storage due to financial difficulties, eventually dismantled and its parts sold.
Engine: 40hp Salmson AD-9
Wingspan: 20’0″
Length: 16’3″
Useful load: 285 lb
Max speed: 145 mph
Cruise: 130 mph
Stall: 50 mph
Ceiling: 8,000′
Seats: 1
All Aero 