In 1929 Jacob P Sellmer built the Incubator. A home-built based on a Pietenpol, with a pivoting wing for minimum storage requirement, it was powered by a 28hp Lawrance engine.
Created for use by Sellmer’s son in his duties as a Fish & Game Dept warden, it was a single place, open cockpit, high-wing monoplane, registered N512K.
All Aero 