aileronn.

Brit.

/ˈeɪlərɒn/, U.S.

/ˈeɪləˌrɑn/

Origin: A borrowing from French. Etymon: French aileron.

Etymology: < French aileron (17th cent. in sense 1; 1909 or earlier in sense 2), specific uses of aileron extremity of a bird's wing (1393 in Middle French as aleron ) < aile wing (see ailette n.) + -eron, diminutive suffix. O.E.D. Suppl. (1933) gives the pronunciation as (ēⁱ·lĕrǫ̆n) /ˈeɪlərən/.

1. Entomology. In dipteran flies: an alula. Now disused.

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the world > animals > invertebrates > phylum Arthropoda > class Insecta > order Diptera or flies > [noun] > member of > parts of > appendage at base of wing or alula

aileron1797

alula1817

1797 Encycl. Brit. XVII. 349/2 The ailerons or petty wings which are found under each of the wings are of a whitish Colour, and perfectly cover the balancers, so they are not to be seen without lifting up these.

1829 London Encycl. VIII. 485/1 There are no ailerons, or petty wings at the origin of these [wings].

1942 E. O. Essig College Entomol. 23 Aileron and alulet may be used in a similar sense.

2. Aeronautics. Each of the hinged flaps on the trailing edge of an aircraft wing, used to control the balance of the aircraft in flight; (sometimes more generally) any movable aerofoil used for this purpose.

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society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > [noun] > movable control surface > aileron or elevon

wing-flap1906

aileron1908

tip1913

split flap1929

elevon1945

1908 Autocar 26 Dec. 1046/1 Mr. Henry Farman has now completed the transformation of his machine into a triplane. He has fixed two ‘ailerons’ of eight square metres each... The turning movement will be obtained by the manipulation of the ‘ailerons’.

1909 Aero 25 May 1 The ailerons or small planes between the main surfaces are used instead of wing-flexing for balancing.

1937 Jrnl. Royal Aeronaut. Soc. 41 191 Partial flap (slotted or split type) combined with drooping ailerons.

1953 Sci. News 29 99 The ailerons on an aircraft are usually situated on the trailing edges of the wings and extend approximately halfway along the wing from the tips.

1977 New Scientist 13 Jan. 105/1 The essential control in turning an aircraft..is the ailerons.

2009 Vanity Fair (N.Y.) Jan. 138/2 The passengers could see the heavily deflected aileron necessary to maintain control.

Compounds

C1. General attributive.

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1909 V. Lougheed Vehicles of Air xii. 397 The Antoinette construction has been frequently varied, different machines having been built with aileron control, different types of alighting gears, low and high power, etc.

1915 Aerial Age Weekly 20 Dec. 332/2 A short distance behind the main rear spar is another spar,..forming at its outer portion a support for the aileron hinges.

1944 C. Paterson Diary 2 Sept. in Scientist's War (1991) 511 Heavy Alloy..is definitely prescribed for the aileron balance weights.

1977 New Scientist 13 Jan. 105/1 In soaring turns it [sc. the rudder] is purely used to counter adverse yaw resulting from aileron drag.

2007 Glider Flying Handbk. (Federal Aviation Administration) 8-13/1 An interference of a foreign object with..the control stick or aileron circuit.

C2.

aileron roll n. a manoeuvre in which an aircraft performs a complete turn around its longitudinal axis, executed by means of its ailerons.

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society > travel > air or space travel > action of flying (in) aircraft > aerobatics > [noun] > stunt > specific

loop1900

looping1914

barrel roll1917

falling leaf1917

renversement1918

vrille1918

slow roll1923

slow-rolling1923

aileron roll1924

flick roll1928

wing-over1928

lazy eight1930

bunt1932

aileron turn1942

victory roll1942

rollover1945

twinkle roll1962

rollback1978

1924 Jrnl. Franklin Inst. 198 428 The values of lift on the ailerons and wing tips in a sharp aileron roll are only slightly greater than in steady flight.

1987 Kentucky Poetry Rev. Fall 54 I remember things done wrong: an aileron roll too close to the ground..a thunderstorm full of hail.

2010 Herald-Times (Bloomington, Indiana) 11 June a6/3 In dizzying succession, the pilot performed snap rolls, aileron rolls, torque rolls, hammerhead rolls.

aileron turn n. = aileron roll n.

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