The 1928 OW-3, aka Hi-Lift, open cockpit biplane was a modified Standard J-1 fuselage with a Welch-designed high-lift wing. Two were built: N378 c/n 10 and N3506 c/n ES-51.

Engine: Curtiss OX-5, 90hp
Wingspan: 31’0″
Length: 23’0″
Seats: 2

Two 1928 Welsh OW-2 open cockpit biplanes were built. The first, N5105, was modified from an OW-1, then modified again as a 5 place with replacement motor, but destroyed in a hangar fire in November 1929.

A secod OW-2 was N11142 c/n 106.

Engine: Hisso A, 150 hp
Wingspan: 31’2″
Length: 24’4″
Useful load: 800 lb
Max speed: 101 mph
Cruise speed: 96 mph
Stall: 32 mph
Range: 400 mi
Seats: 3

The first original design by Orin Welch was the 1927 OW-1 open cockpit biplane. Four were built; N817 c/n 103, N4205 c/n 100, N5105 c/n 101, and N6838 c/n 104.

The first OW-2 was a modified OW-1.

Engine: Curtiss OX-5, 90hp
Wingspan: 31’2″
Length: 24’2″
Max speed: 105 mph
Cruise speed: 95 mph
Stall: 40 mph
Seats: 3

Designed by Fred Parker and Orin Welch, the open cockpit 1927 biplane was loosely based on a Swallow design. One was built, N1405, with. “Elephant ear” ailerons, and faired-in radiator underneath. The first production for Welch Co, dubbed Miss Anderso, it was used as a company hack until its eventual sale. Badly damaged after a forced landing in a cornfield, it went into storage, then lost.

Engine: Curtiss OX-5, 90hp
Wingspan: 36’0″
Length: 28’0″
Useful load: 800 lb
Seats: 3