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Yates Bi-Motor / Bi-Craft
 The George Yates of Beaverton, Oregon, Oregon O was developed into the 1935 twin-engined Greenwood-Yates Bi-Craft (NC15546) with 50 hp engines.
 Yates and partner Allan D. Greenwood (a pilot and Oregon state aircraft inspector) formed the North Pacific Aircraft Corp. to market the Bi-Craft geodetic-construction light twin design.
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