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The Clark Y is appealing for its near-flat lower surface, which aids in the construction of wings on plans mounted on a flat construction board. Inexperienced modellers are more readily able to build model aircraft which provide a good flight performance with benign stalling characteristics.
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Piccirillo, Albert, "The Clark Y Airfoil - A Historical
Retrospective," SAE/AIAA paper 2000-01-5517, presented at the World Aviation Congress & Exposition, October 10, 2000, San Diego, California.
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using thickness distribution of the German-developed
Goettingen 398 airfoil. The airfoil has a thickness of 11.7 percent and is flat on the lower surface aft of 30 percent of
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stealth technology demonstrator aircraft also used a Clark Y. The Clark Y was chosen as its flat bottom worked well with the design goal of a low radar cross-section.
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The Clark Y has found favor for the construction of model aircraft, thanks to the flight performance that the section offers at medium
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For many applications the Clark Y has been an adequate airfoil section; it gives reasonable overall performance in respect of its
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characteristics. The flat lower surface is not optimal from an aerodynamic perspective, and it is rarely used in modern designs.
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airflows. Applications range from free-flight gliders through to multi-engined radio control scale models.
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are two of the better known aircraft using the Clark Y profile, while the
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Istorija konstruktsij samoljotov v SSSR, 1938-1950 gg. (3rd ed.).
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reducing the horizontal tail load required to trim an aircraft.
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The Clark YH airfoil is similar but with a reflexed (turned up)
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Some of the better-known aircraft that use the Clark Y and YH:
389:История конструкций самолетов в СССР 1938-1950 гг. (3 изд.).
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are examples of mass-produced users of the Clark YH.
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over the years. The profile was designed in 1922 by
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225:(all intermediate designs used the same section)
204:(all intermediate designs used the same section)
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405:History of aircraft design in USSR: 1938-1950
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153:An inverted Clark Y airfoil was used on the
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423:The Incomplete Guide to Airfoil Usage
377:The Incomplete Guide to Airfoil Usage
470:Clary YH airfoil at airfoiltools.com
391:Машиностроение (Shavrov V.B. (1994)
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464:Clark Y airfoil at airfoiltools.com
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78:Clark YH wingroot of a
290:Mikoyan-Gurevich MiG-1
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159:Dodge Charger Daytona
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490:Aircraft wing design
448:From NASA to NASCAR
387:Шавров В.Б. (1994)
319:Stolp SA-900 V-Star
257:Custom Cabin series
238:Spirit of St. Louis
127:Northrop Tacit Blue
112:Spirit of St. Louis
163:Plymouth Superbird
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65:lift-to-drag ratio
54:Virginius E. Clark
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421:Lednicer, David,
395:Mashinostroenie.
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248:Vultee V-11
479:Categories
351:References
271:Currie Wot
202:Fleet Fawn
193:Avia B.122
314:Potez 39
265:Clark YH
169:Aircraft
155:spoilers
102:Aircraft
46:aircraft
18:Clark YH
182:Clark Y
157:of the
80:Yak-18T
42:airfoil
38:Clark Y
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294:MiG-3
285:Il-10
223:Orion
69:stall
58:chord
397:ISBN
330:and
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283:and
255:and
161:and
149:Cars
125:The
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