Dru: I really would like to know how much yours weighs with ten sub-c's on board and an extra servo. I'm hoping to avoid having to do that mod to make room.


Matt:

<However, one ounce either way should not make that much difference, and I'd just stick with the Futaba for now.>

Agreed.

<From what I've read and seen, 16 turns is about the "hottest" car motor you'd want to even think about running direct drive. An 11 turn motor will draw far too many Amps turning a prop of any useful size, and the gear ratio would have to be unbelievably high, like 6:1 or more, to get the Amps down.>

Thank you for this explanation; this finally makes sense of the 'turn count" issue and what it means in practical application.

<That's a 15 Cobalt, right?>

Yes, its a '615G' and its the FAI version...but I'll have to remove the offset gearbox.

What do you think about available inline gearboxes, and what ratio and prop size would you suggest?


<The Astro looks promising because it's a low current motor, and there are several lightweight NiMH options that can handle that kind of current. >

I don't have any batts right now which seem suitable; If I have to buy new packs anyway, I'm wondering if I can 'rationalize' buying Li-Pos (?)
I think I would have to use 3S2P to get enough current???? Or 3S3P??

Ricky