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Helikopter

Helikopter. 400 f.v.t. 1480. 1936. 1942. http://static.ddmcdn.com/gif/helicopter-basic- parts.gif http:// static.ddmcdn.com / gif / helicopter-basic-parts.gif. Virkemåte. R o terende blader med ulik vinkel/ pitch s kaper løft Pitch kan endres syklisk eller kollektivt

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Helikopter

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  1. Helikopter

  2. 400 f.v.t 1480 1936 1942

  3. http://static.ddmcdn.com/gif/helicopter-basic-parts.gif • http://static.ddmcdn.com/gif/helicopter-basic-parts.gif

  4. Virkemåte • Roterende blader med ulik vinkel/pitchskaper løft • Pitch kan endres syklisk eller kollektivt • Bevegelse skyldes ulik pitch ved forskjellige posisjoner under rotasjon • 90 graders «forsinkelse» i rotorløftet

  5. Halerotor • Flere måter å motvirke dreiemoment: • Halerotor bilder • Twin Rotor • Luftstrøm (NOTAR) • ”Propellfly”

  6. Dobbelrotor

  7. NOTAR - System

  8. Hybrid-løsning • Bilde av X3(Raskeste helikopter) • Fartsbegrensing • Wavedrag • Raskeste helikopter

  9. Autorotasjon • http://www.youtube.com/watch?v=LP1aE0TNw58

  10. Mil mi 26 • http://www.youtube.com/watch?v=rBP1cIh27Oo

  11. Kilder • http://science.howstuffworks.com/transport/flight/modern/helicopter5.htm • http://www.aerospaceweb.org/question/helicopters/q0084.shtml • http://en.wikipedia.org/wiki/Bell_412 • SmarterEveryDay-HelicopterPhysics Series: http://www.youtube.com/playlist?list=PL6CECC2E56B68A2C3 • http://en.wikipedia.org/wiki/Helicopter

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