English: 1935 Waco YOC Custom Cabin sesquiplane (NC17740) at the Virginia Aviation Museum, at the airport in Richmond, Virginia. This aircraft was once owned by Hollywood artist Walter Matthew Jeffries who designed the Starship Enterprise. As is typical with the Custom cabin sesquiplanes, the lower wing lacks ailerons (and the aileron linkage bar), and the lower wing is significantly smaller than the upper wing.