Bell Bloke Veteran Location: England
| Well guys any input as I say would be useful as many heads are better than one, so why not make it a community effort!
I have weighed the chopper with the original Rossi 60 motor and it comes out at 16lb/7.2kg. My original thought was to run it on a Joker 2 motor/speed controller set up, this being a very powerful heli. However there are other factors that you folks may wish to consider, the boffins among us will no doubt be twitching with anticipation at a possible arithmetic opportunity, so here we go!
The first factor to consider is that there is a hell of a lot of lead in the front, now it occurred to me that it may be a idea to use 4X 3S-4P packs connected to give 44.4 volts and displace some of that lead, with a target headspeed of 1500rpm and a gear ratio of 10-1 I would need a motor rated at about 400rpm per volt. This on paper comes out at 1700+rpm at the head but there is always a mechanical loss. Or I could have a motor rated at a higher rpm per volt and gear it down as the pinion gear has 33 teeth.
The 4X 3S-4p set up does sound good to me though as I have these packs coming out of my ears as it has been the basis of all of my electric helis so far. So what do you reckon folks, any motor recommendations? Would really like to hear from you, all the best, Bell Bloke.
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