This text is a result of my discussion on propellers with Mr Spencer Greenhalgh from whom a have learnt a lot.
Note: This text contains mathematical formulas and derivations. However, these could be easily skipped without considerable loss of the information value.
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26 flights in Autonomy, few afterthoughts from WC F3J by Sydney Lennsen, latest development on the F5J/FXJ battlefield. Is it really better to have smooth and accurate wings, and how about walkalong e-glider?
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It is known that a Li-pol battery performance depends strongly on the temperature. However, the hard data are scarce – so here is my contribution.
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An electric motor is pulling some amount of energy from the battery. The model climbs at speed which is much less than it would correspond to this battery power. About 2/3 of the energy dissipates on the way. Where it goes to?
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The Autonomy originates in and is flown in Italy (please see www.autonomy-f5j.it). The rules are simple: make as many 6 minutes flights as possible with the allocated amount of energy.
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