ON THE FLIGHT LAUNCH OF A HIGH-PERFORMANCE GLIDER AIRMODEL
The high performance glider airmodel is launched in competitions with height gain, achieved by the kinetic energy imprinted by the competitor at the time of launch. The glider airmodel is subjected to a centrifugal force at launch time to which is added the total lifting force produced by the wing and the horizontal tail. The two forces reach significant values; so that if the flight speed of the model aircraft is 5.5 m / s and a height gain of 50 m is desired, the centrifugal force is 7.9 N and the lift force is 134.5 N and lunching force is of 138.8 N. Considering a loss of 10 %, the effective force required for launching is of 153.7 N (15.7 kgf).
FAI Sporting Code, Section 4 – Aeromodelling, Volume F1, Free Flight Model Aircraft, 2020 edition, on line https://www.fai.org/sites/default/files/documents/sc4 vol f1 freeflight 20.pdf [21 august 2020; ESST 12:00].
Petre Mihai, Forța centrifugă, on line https://www.scribd.com/doc/87143969/Forta-centrifuga [5 octombrie 2020; ESST 12:15].
Sfetcu Nicolae, Energia cinetică, on line https://www.setthings.com/ro/energia-cinetica [5 octombrie 2020: ESST 12:21].
Popovici Andrei, Ce este energia potențială?, on line https://www.descopera.ro/maratoanele-descopera/mari-intrebari/18151517-ce-este-energia-potentială [5 octombrie 2020: ESST: 12:30].
Sfetcu Nicolae, Conservarea energiei, on line https://www.setthings.com/ro/conservarea-energiei [5 octombrie 2020: ESST 12:40].
Panait Ştefan, Principiile zborului, Aeroclubul României, București, 2011, p. 19.
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