The first Westfall Sport (N13954) was rebuilt c.1957 with a Continental A-75 and was active into the ’70s.

The second Sport was built in 1937 with a 65hp LeBlond engine.

An unknown number were built by others from marketed plans.

Engine: 40hp Ford A
Wingspan (upper): 25’0″
Wingspan (lower): 23’0″
Length: 15’4″
Max speed: 98 mph
Stall: 30 mph
Ceiling: 14,000′
Seats: 1

Engine: 65hp LeBlond
Useful load: 274 lb
Max speed: 115 mph
Cruise speed: 100 mph
Stall: 25 mph
Range: 315 mi

The 1928 Western Airplane & Supply Co Sport three seat open cockpit biplane was possibly designed or constructed by secretary-treasurer W W Wright, who was also credited with the Wright Light Sport of the same year.

Only the one was built, N4225, and the registration was cancelled in 1930.

Engine: 90hp Curtiss OX-5
Wingspan: 34’0″
Length: 33’6″
Seats: 3

The 1929 Western Airplane Co King Bird open cockpit biplane sold for $2500. Only one was built; N6768.

Engine: 90hp Curtiss OX-5
Wingspan (upper): 35’0″
Wingspan (lower): c.38’0″
Length: 25’4″
Max speed: 95 mph
Cruise speed: 85 mph
Stall: 30 mph
Range: 440 mi
Seats: 3