DICTIONARY OF AVIATION 99
air effers to the flight of a bird or aircraft; resistance to flight.
flight-signal 'fLait,signl n. a signal, such as a flag of special design, indicating that a flight is to take place.
flight-velocity 'fz.ait-vi,lesi-ti n. the velocity or speed of flight.
flipper 'fLipaz n. a flattish lim used to siuim with, as any of the lims of a turtle, the forelim of a seal, walrus, or whale; the fin of a fish; the wing of a penguin; also, a flipper* like or fm^like part of a flymg^machine ; an aileron.
float ftoot n. any device, such as an inflated air-bag, cais- son, or pontoon, which is attacht to or bilt into an aero- plane or other aimnachine to keep it afloat upon waters surfaces.
float fz-oot intr. rest n or in the air or other fluid; be buoyd up; move gently aleng on air^currents ; soar; sail.
floatage 'fLoo-tids n. [also spelt flotage] the action or state of floating; also, the power or capacity to float; floating? power; buoyancy.
floater 'ftoo-taz n. one who or that luhich floats.
floating-appliance 'ftoo-tin^pi^ai-ans n. an appliance or device for enabling an air^machine to float upon water* surfaces; a float; a water^foot.
floating-power 'fi,DO-tin,pau-9z n. power to float; capacity to remain suspended or afloat in the air; floatage.
Float-reservoir 'f z,oot,ze zaz-vaz n. a reservoir or receptacle en tuhich the floating^power of a balloon or airship de- pends; the float^vessel ; the gas^vessel.
float-vessel 'ftoot/vesal n. the vessel or receptacle upon the buoyancy of which depends the power of a balloon or air- ship to float in the air; the floatereservoir ; the gas^vessel; the gasbag.
flock ftek n. a band or assemblage of birds or the like : as, a
- fleck of aeroplanes.
floe ftoo n. a sheet of ice floating upon the surface of the sea; a detacht portion of a field of floating ice; an ice-floe.
floeberg 'feoo,bB:zg n. [also spelt floetberg] a berg com- posed of floe^ice.
floe-ice 'fLDo,ais n. the ice of a floe; the frozen substance of an ice-floe.
flow ftoo n. the action or fact of flowing; movement in a current or stream; also, an instance or mode of this. discontinuous flow, flow which is net continuous. line of flow, an imaginary line or curv drawn within a fluid at any instant such that at each point of the curv the instantaneous velocity of the liquid is aleng the tangent.
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