The circa 1925 Welch-Standard J-1 was a modification of war-surplus Standard J-1.
One was registered N2476 c/n OWS-1 and possibly others were unregistered.
Inter-Wars
Welch Aircraft Industries OW-X
The 1930 OW-X was a modified Swallow with a 300-gallon fuel tanks for an endurance flight that was never made. A single place open cockpit biplane, the single example, NX952W c/n 1, was powered by a 150hp Hisso A, and later a 110hp Dayton Bear.
It was converted into a seaplane in Kentucky in 1931.
Welch Aircraft Industries OW-8
The 1937 OW-8 high wing cabin monoplane sold for $1,195. Two were built; NC17117 and NC28803.
Engine: Franklin 4AC, 40hp
Length: 21’0″
Useful load: 210 lb
Max speed: 93 mph
Cruise speed: 83 mph
Stall: 29 mph
Ceiling: 11,000′
Seats: 2
Welch Aircraft Industries OW-7M
The 1936 OW-7M (ATC 637) two place high wing cabin monoplane originally sold for $995, and $899 in 1940. An engine option was the 40hp Continental A-40.
Eight were built; NC14527, NC15778, NC18392, NC18393, NC18395, NC18397, NC20477, and NC20478.
Engine: Welch O-2, 45hp
Wingspan: 34’4″
Length: 20’6″
Useful load: 410 lb
Max speed: 90 mph
Cruise speed: 85 mph
Stall: 35 mph
Range: 260 mi
Seats: 2
Welch Aircraft Industries OW-6
The 1935 OW-6M two place high wing cabin monoplane (ATC 636) sold for $995-1,195. Six were built; NC13521 c/n 109, NX/NC14528 c/n 112, NC18248 c/n 133, NC18429 c/n 134, NC18461 c/n 131, NC20405 c/n 137, plus one prototype OW-6S, NX14521 c/n 110, with a 45hp Szekely SR-30 and an experimental, two-speed gear-reduction system.
Variation:
Stewart Texas Bluebird
OW-6M
Engine: 36hp Aeronca E-113
Wingspan: 34’5″
Length: 20’8″
Useful load: 435 lb
Max speed: 89 mph
Cruise speed: 78 mph
Stall: 35 mph
Range: 240 mi
OW-6S
Welch Aircraft Industries Falcon OW-5 / ACE Falcon
Welch Aircraft Industries introduced the Falcon OW-5 in 1931, of which about 65 built, at South Bend, Indiana, between 1935-1940.
A two place high wing monoplane, the 1934 OW-5M with folding wings sold for $995. Thirty-eight were built; NC11382, NC13500, NC13511, NC18257/18261, NC18269/18271, NC18348, NC18378/18381, NC18394, NC18396, NC20402/20404, NC20452/20456, NC20459/20468, NC20488/20489, powered by a 40hp Continental A-40 or 45hp Welch O-2 under ATCs 636 and 637.
Prototype NC11382 was fitted with a 60hp Anzani as the ACE Falcon, later replaced by a 40hp Salmson, and one (NC13511) was fitted with a 40hp Rathel, later replaced by a 45hp Szekely.
ATC 2-474 was for a weight change for NC13500.
OW-5M
Wingspan: 34’5″
Length: 20’8″
Useful load: 410-435 lb
Max speed: 85 mph
Cruise speed: 75 mph
Stall: 30 mph
Range: 240 mi
ACE Falcon
Welch Aircraft Industries OW-4
The 1929 OW-4 high wing monoplane with a 3 place cabin was a modification of the Welch biplane design.
Engine: Curtiss OX-5, 90hp
Seats: 3
Welch Aircraft Industries OW-3M / Parasol
The 1928 OW-3M / Parasol open cockpit, high wing monoplane was the first prototype of the popular Welch lightplanes.
Only the one OW-3M was built; N415 c/n 105.
Engine: Curtiss OX-5, 90hp
Wingspan: 33’0″
Length: 21’6″
Max speed: 93 mph
Stall: 4 mph
Seats: 3
Welch Aircraft Industries OW-3 / Hi-Lift
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
Welch Aircraft Industries OW-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
All Aero 