Laminar Flow Wing
A wing designed such that the air flow over it is laminar at zero to small angles of attack. In Laminar flow the adjacent layers of air flowing over the wing do not mix.
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Northrop X-21 Aircraft testing laminar flow wings
Bell X-22 V/STOL ducted fan propellers
Martin Marietta X-23 Prime Small lifting body; tested re-entry
Martin-Marietta X-24 Tested lifting body shapes
Bensen X-25 Single-seat autogyro
Schweizer X-26 Frigate Sailplane ...
The short (Hershey-bar) laminar flow wing has a critical speed at which a sink rate may develop such that the flare may be unable to create the ground effect needed. In fact, the plane will fall through ground effect and make ground contact violent enough to damage the aircraft.
If you want ultra-low drag, and don't care about short-field performance, you want a wing with as much laminar flow as possible. Designing a “laminar flow wing” is exquisitely difficult, especially in the real world where the laminar flow could be disturbed by rain, ice, mud, ...
The final design was actually produced in two prototype forms, one airplane with a four cylinder, geared Lycoming GO-290 of 160 horses and the Continental E-165 six cylinder. Additionally, the Lycoming airplane had a laminar flow wing while the Continental airplane used the better known 23000 ...
working with Lancair on development of everything from the two-seat Legacy to the Columbia 300/350 (back when the companies were combined-the airplane is now known as the Cessna Corvalis). Cole is considered especially adept at designing airfoils with low Reynolds numbers (read 'laminar flow wings').
See also: What is the meaning of Laminar flow, Flight, Aircraft, Wing, Up?