Þyrla

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Gān tō: þurhfōr, sēcan
Þyrla
LAPD Bell 206
Endebyrdnesse dǣl ymbe
Lyftcræfta Floccas
Supported bȳ Lēohtra-þonne-Lyft Lyftingas (aerostats)
Ungemihtod Gemihtod
Ballōn Lyftscip
Supported bȳ LþL Lyftingas + Aerodynamic Lift
Ungemihtod Gemihtod
Cyndblendisc lyftscip
Supported by Aerodynamic Lift (aerodynes)
Ungemihtod Gemihtod
Ungemihtod fæstgefeðrod Gemihtod fæstgefeðrod
Glider
hang gliders
Glīdflēoge
Kite
• Gemihtod lyftwægn
powered hang gliders
Gemihtod glīdflēoge
Flettner airplane
Ground-effect vehicle
Powered hybrid fixed/rotary wing
Tiltwing
Tiltrotor
Mono Tiltrotor
Mono-tilt-rotor rotary-ring
Coleopter
Ungemihtod rotary-wing Gemihtod rotary-wing
Rotor kite Autogyro
Gyrodyne ("Heliplane")
Þyrla
Powered aircraft driven by flapping
Ornithopter
Ōðer Gescēad Hebboðes
Ungemihtod Gemihtod
Hovercraft
Flying Bedstead
Avrocar

Þyrla is lyftcræftes cynd mid spinnendum feðrum. Ƿiþ fæstȝefeðrod lyftcræftas, þus þyrlas magon rihtuppƿearde flēogan, on lyfte standan, and flēogan forþ, bæcƿearde, and hande bȳ hande.

Mǣste sprǣċe þǣre ƿorulde brūcaþ þæt ƿord helicopter, beinnende Nīƿenglisc, fram Frenċisce hélicoptère þe Gustave de Ponton d'Amecourt ǣrest ƿrāt in 1861, mid fruman fram Grēkisce helix/helik- (ἕλικ-) = þurhstandende hring oþþe ċierrende, and pteron (πτερόν) = feðer.[1][2]

Man ƿorhte þyrlas on flyhtes fyrmestum healfȝēarhundrede, mid þǣm Focke-Wulf Fw 61 bēonde se fyrst fremmende þyrla, in 1936. Menn ƿorhton sum þyrlas, ac ne ƿæs hit þe oþ 1942 þæt þyrla þe Igor Sikorsky ƿorhte cōm to fulƿeorcscipe[3] bȳ 131 lyftcraftas ƿorht.[4]

Þēah mǣst ǣror þyrlas hæfdon mā þonne ān hēafodspinnere, hit ƿæs se ānliċ hēafodspinnere mid ƿiþspinmihteliċum tæȝlspinnere þe man reċþ ƿoruldƿīde to bēonne se þyrla.

Fruman[adihtan]

  1. "helicopter". Online Etymology Dictionary. Beȝieten: 28 Blōdmōnaþ 2007
  2. Cottez 1980, p. 181.
  3. Munson 1968
  4. Hirschberg, Michael J. and David K. Dailey, "Sikorsky." US and Russian Helicopter Development In the 20th Century. American Helicopter Society, International. 7 July 2000.