Marion Unruh & George Albright
Falls Church VA.
USA

c.1960: Col Marion D Unruh,
Pretty Prairie KS,
Austin TX.
USA

Airplane builder 1928

USA
Established at McCook Field, Ohio, the US Army Engineering Division was concerned with the design, development and manufacture of aircraft for the US Army. These included the FVL-8 and BVL-12, biplane fighter and bomber respectively, designed by Italian Ottorino Pomilio; USD-9 version of the British Airco D.H.9; XB-1 version of the Bristol F.2B Fighter; M-1 and MAT communications aircraft designed by Alfred Verville and built by the Sperry Aircraft Company; three R-3 low-wing monoplane racing aircraft by the same Verville/Sperry combination; VCP-1 (Verville-Clark Pursuit) of 1918; NBL-1 ‘Barling’ bomber designed by Briton Walter Barling and built by Witteman- Lewis Aircraft Corporation; and GA-1, or G.A.X. (Ground Attack Experimental), built by the Boeing Company. With establishment of the USAAC in 1926, the Engineering Division was replaced at McCook Field by the Materiel Division.

In 1917-18 the company had built about 50 Curtiss JN-4s under a wartime contract.

1918: United States Aircraft Corp Ltd, Redwood City & San Francisco CA on acquisition of Christofferson Bros factory.

In 1930 acquired the assets and plant of Marchetti Motors, but apparently never did anything with it.

Undertook aircraft conversions, including Turbo Express lengthened and turboprop conversion of DC-3.

1928: United Aircraft Corp
pres: Curtis C Baldwin, on acquisition of Lark Aircraft Co, 471 W 1st St, Wichita KS.

c.1929: Company or its assets possibly went to Commercial Aircraft Corp at Van Nuys CA.

In 1928, Boeing Airplane and Transportation Corporation went pub¬lic and the stock sold quickly. Encour¬aged, Boeing formed the United Air¬craft and Transport Corporation, which included Boeing Airplane Com¬pany, Pratt & Whitney, Chance Vought, Sikorsky, Hamilton Propeller, Pacific Air Transport and Boeing Air Transport.

March 1930:
Boeing Air Transport Inc
Boeing Airplane Co Inc
Boeing Schools of Aeronautics
Canadian Pratt & Whitney Aircraft Co Ltd
Chance Vought Corp
Hamilton Standard Steel Propeller Co
Hoffar-Beeching Shipyards Ltd
Northrop Aviation Corp
Pacific Air Transport Inc
Pratt & Whitney Aircraft Corp
Sikorsky Aviation Mfg Corp
Stearman Aircraft Corp
Hamilton Metalplane Co
Stout Air Lines Inc
United Aircraft Exports Inc
United Airports Inc

In 1934, Boeing was informed by the U.S. Gov¬ernment that he was violating the new antitrust laws. He resigned as chair¬man, sold out his stock and the corporation was divided into three new companies United Air Lines to han¬dle air transport, United Aircraft Cor¬poration to take over the eastern man¬ufacturing firms and Boeing Airplane Company to manage Western opera¬tions.

Jack Northrop was employed by United Aircraft and Transport Corporation. All went well until United decided Northrop should leave Burbank and join another United division. He re¬mained in California to form a new company.
Uni¬ted Aircraft Corporation with which Vought Sikorsky merged.

This conglomerate was founded in 1934 to group together the activities of Pratt & Whitney Aircraft and Engines, Hamilton- Standard (formerly Hamilton Metalplane), United Airports and Vought-Sikorsky, each company retaining its separate identity.

Continued as United Technologies.