Condor Shoestring

Shoestring
Shoestring N16V awaiting restoration
Role	Formula One Air Racing aircraft Type of aircraft
Manufacturer	Mercury Air, Condor Aero for homebuilding
Designer	Rodney Kreimendahl
First flight	1949

The Condor K-10 Shoestring (originally known as the Ast Special and the Mercury Air Shoestring) was a Formula One Air Racing aircraft built by Carl and Vincent Ast to compete in the Cleveland National Air Races in 1949. It was a highly streamlined mid-wing cantilever monoplane with fixed tailwheel undercarriage. The mainwheels were covered with spats. The shoestring differed in approach to the 66 sq ft wing limitation, choosing a longer high aspect ratio tapered wing compared to the stubby wings of others.^[1] The original aircraft (registered N16V) was extensively rebuilt in 1965 and 1974, and by that time had won fourteen first places, three second places and four third places.