Monday, October 17, 2005

In flight electric heli measurements from Andre Kilian (the man is a gold mine of info)


I downloaded the in-flight data from Paul Coelho's T-REX last night. Flight included very little hovering, mostly loops, rolls, upside down flights etc. - he was pushing the little chopper to its limits!

Average current 9.2A, max amps 22.5, max voltage 12.5V, dropped to 10.1V under full load, avg 11.02V Max power 244W, avg 101W, 1595mAh used from battery.

As a matter of interest - flying gentle circuits gave the following results: Max current 12.99A, avg. 8.54A, max voltage 12.6V, avg. 10.96. Eco 8 (same flying style) max current 19.36A, avg. 12.89A, max voltage 13.57, avg. 10.61, min 10.01V (old GP3300 cels).

Also interesting to note that if you only intend to hover and fly gentle circuits, a 10C cell like the Hecell 2000, Align 1800 or the E-tech 1700 are fine, as amps are below 15A. If you intend to push it, go for the Kokam 2000 packs (15C) or for even better performance the the new 20C cells such as the PQ 1800 (22C) or the flight power 1800s (20C).



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