1940 WACO SRE

The Waco E series is a small family of American built cabin biplanes built between 1939 and 1942, which differed primarily by engine installation.

Development and design

The E series was the final development of the prewar Waco line of biplane designs. A full four-seater, it had the best performance of any of the Wacos. First flown in 1939, it had a much slimmer and more streamlined fuselage than earlier Waco C and S models and heavily staggered unequal-span parallel-chord wings with rounded tips. Wings were plywood-skinned, and also had wire cross-bracing between the wings in place of the solid struts used on previous models.

Engines varied in power from 285 to 450 hp, giving the E series a high cruising speed for the period of up to 195 mph. Production ceased in 1942. Note: the Waco GXE of 1929/30 as you see in other examples in the collection, was an unrelated biplane design with non-staggered wings.

Tour the Cockpit!

Front Cockpit View

Rear Seats View

Operational history

The E series was sold to wealthier private pilot owners who required the comfort of a fully enclosed cabin and a high cruising speed, combined with a longer range. Because of the type’s good performance, 15 examples were impressed by the United States Army Air Forces during WWII for communications work as the UC-72. Several of the USAAF examples were returned to civilian use after the end of the war and four SRE series aircraft remain airworthy to this day.

This particular aircraft was originally purchased directly from the Waco factory by the Goodyear Tire and Rubber Co. The Ala Doble Flying Collection purchased it as a project. The condition at which you see it present day is the result of the restoration that was completed by Rick Atkins at Rag Time Aero. Ever the purist, Walt Bowe, founder of the collection originally wanted it to be restored as it left the factory with Goodyear branding and markings. Goodyear refused to allow the airplane to be done in that particular scheme which is why you see it as it looks today. The restoration efforts for this airplane were awarded with the 2022 Sweepstakes Champion trophy at EAA Airventure.

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