| 单词 | horn-balanced |
| 释义 | > as lemmashorn-balanced (b) A part of an aileron or other control surface that extends across the axis of rotation over part of its length and serves to improve the balance of the surface; so horn balance, horn-balanced adj. ΘΚΠ society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > [noun] > movable control surface > part of extending across axis of rotation horn1921 1921 Aeronaut. Jrnl. 25 539 The most common method of balancing ailerons is to have a ‘horn’ or projection on the aileron beyond the wing tip and forward of the aileron hinge. 1921 Aeronaut. Jrnl. 25 554 The horn method of balancing elevators. 1922 Encycl. Brit. XXX. 23/2 This so-called ‘horn’ balance proved unsatisfactory. 1939 Jrnl. Royal Aeronaut. Soc. 43 424 This effect was noticed during the war on horn-balanced rudders, and has now been used in the design of elevators. 1952 W. J. Duncan Princ. Control & Stability Aircraft vii. 195 A horn balance is a local protuberance of the control surface lying forward of the hinge axis... The horn may lie behind the main surface (shielded horn) or be exposed to the airstream. 1968 B. Dickinson Aircraft Stability & Control x. 235 If the horn extends to the leading edge of the aerofoil it is referred to as an ‘unshielded’ horn. < as lemmas |
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