Designed and built by Arthur & Peter Aggergaard, the Aggergaard A-1 was a three-place open cockpit monoplane, registered N587W c/n 100.

It was built from parts supplied by Nicholas-Beazley Co at Marshall MO.Powered by a 180hp Hisso E, it first flew on 18 May 1931.

The registration was cancelled 1 February 1933.

The 1940 Aerocraft 2SA (ATC 733) featured tandem cockpits, but the prototype was modified from a side-by-side Kinner B-2 NC14200. Later versions were known as Aetna 2SA.

Also available with 175hp R-5, six were built.

Engine: 160hp Kinner R-5
Wingspan: 34’6″
Length: 24’6″
Useful load: 614 lb
Max speed: 125 mph
Cruise: 110 mph
Stall: 45 mph
Range: 400 mi
Seats: 2

One American Sunbeam Pup (LP-1), built in 1931 registered NC956Y (ATC 2-334), was a two-place open cockpit high wing monoplane.

Engine: 40hp Salmson AD-9
Wingspan: 36’4″
Length: 20’0″
Useful load: 500 lb
Max speed: 95 mph
Cruise: 72 mph
Stall: 27 mph
Range: 420 mi
Seats: 2