96 DICTIONARY OF AVIATION
��flapper 'ftaepgz n. a sustaining^st^ucture or other broad flat part which flaps after the manner of a wing; a flap.
flapping 'flsepirj n. the action of straying or working to and fro or up and down the wings, etc.
flaw ftc: n.
1. a sudden burst or squall of wind; a sudden blast or gust, usually of shert duration.
2. a fall of rain or snow accompanied by gusty winds; a shert spell of rough wether.
flaw ftc: tr. blow in gusts : used of the wind. fledge fteds v.
1. intr. acquire fethers large enough for flight.
2. tr. bring up (a young bird) until its fethers are grown and it is able to fly.
3. tr. furnish with plumage; wing for flight; fether. fledgling 'ftedslirj n. [also spelt fledgeling] a young bird
just fledged; a nevis in aviation;; a raw or inexperienced
aviator; a tenderwing. flew fz.uu v. see fly. flex fteks tr. bend. flexion 'feek$9n n. [also spelt flection] the action of bend-
ing or flexing; flexure; curvature; also, bent condition, or
an instance of this. flexor 'ftekssz n. a muscle whose function is to produce
flexion or bending; a f lector : the epposit of extensor. flexure 'ftek$3z n. the action of bending; flexion; curva-
ture; also, flext or bent condition, as of a wing or aerofoil;
the ferm or direction in tuhich anything is bent; curva-
ture, bend : as, parabolic *flexure. flexure of wing, the bend of the wing (of a bird) ; the
carpal angle.
flier 'ftai-az: n. see flyer. flight feait n.
1. the action, fact, or mode of flying or moving thru the
air with or as with wings; velitation, volation; also, the
power to fly; the art of flying artificially; aviation.
active flight, that type of flight in tuhich the aerofoil is
itself activ or mobile; flapping flight.
aerial flight, flight in or thru the air or atmosfere;
especially, artificial flight; manflight; aviation.
aeroplane flight, flight which is characteristic of the type
of flying^machine known as an aeroplane; the mode of
flight exhibited by aeroplane flymg^machines : as, a demon-
stjation of *aeroplane flight, compare aeroplanes-flight. angle of flight, the angle or inclination of the sustaining^
surfaces or the longitudinal axis of an airship or flyer in
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