chrishelicopter:

Geez, no. I don't even work for any RC model-related business at all. I only recently purchased my first CP-heli from RC Expert, wanted to add my experiences to this thread and registered the account to do it. I had been browsing these forums for some weeks already, so this thread was as good as any other to start posting in. How did you come to the conclusion that I have only read this thread, BTW? Anyways, if you think I work for RC Expert, the moderators should be able to verify I'm posting from a Dutch ISP.


colrod12:

Thanks for the tips! I think I read the one on weighing down the fly-paddles somewhere else too and will certainly give it a try if all else fails. For now, I've used the RD8000's "dual rate"-function to reduce the max. travel of the collective-servo's to 40%, which seems to make it a bit less jumpy. I have made training-gear out of 2 bamboo sticks now, but haven't tried to lift off yet. I'm thinking about using 4 short pieces of rope with a few CM of slack to tie it down by the landing-gear to a flat surface, preventing it from tipping over but allowing it to get airborne. In combination with the bamboo sticks, this should allow me to get a feel of it's response and balance and as long as I don't push the collective-stick too hard, it should always land levelled, without the rotor striking anything.

BTW: RC Expert found me a suitable cooling-element for my motor. Hopefully, that will solve the temperature-problems and allow me to fly it without worries. The info I posted about the ESC earlier doesn't seem to be entirely correct. The paper with programming-instructions I got with the set, seems to apply to the "RC Expert" ESC's and I got a genuine Align 25A with governor-mode. I grabbed the programming-instructions for that ESC from Align's site and noticed the ESC in my set came programmed for 16KHz PWM-frequency. As far as I understand, setting it to 8KHz might lower the heat-development somewhat, at the expense of some performance. Is this possible and recommended with a 3200KV-motor? If it's really brand and type-specific, I'll ask RC Expert. The ESC also came programmed with the low voltage cutoff at 60% of nominal battery-voltage, which seemed a bit low to me and I have since set for 65%, which would mean it would start throttling down once the battery-voltage falls to 8.19V under load. Should be easier on my LiPo's.


Grtz,

Traveller