I want to build an all-out competition stunter. I have a couple small electric C/L models. Now for a big one!
I have:
Hacker A30-10XL
2 ea 7.4V 3200 mah = 14.8V
X-55-SB-PRO controller
Lacking only the Ztron timer
Total power package weight is 21.3 oz
Is this battery sufficient? Would appreciate recommendations for a suitable kit or scratch-build for this combination. The weight is my big concern. I'm thinking any kit would be too heavy, but maybe "bashing" a kit for lighter weight?
Floyd Carter
AMA#796
Eugene, OR
Floyd,
First off how big is "big"?
going on
Hacker A30-10XL Brushless Outrunner RC Motor, 176g, 650W, 900 RPM/Volt
a kV of 900 rpm/volt means you need at least a 4 cell lipo battery. You can get this by hooking up your two 2cell packs in series. That isn't a big deal. I am not that acquainted with the Hacker motor series, but lets assume for a moment that it is (I think it is ok). It weighs 6.2oz which is in a reasonable range of what most of us are using (somewhere between a 20-26 mm length magnet motor in weight).
I am not acquainted with the ESC. The commonly used ESC's are the Castle Creations--but the main thing is that most of us are using an ESC with a governor that keeps the rpm constant.
With respect to the battery, you have the equivalent of a 4s3200 pack, again, in the range of a modern stunter (more than I use, but I think close to packs that Crist Rigotti uses.)
Since the total weight is in the 20oz range, yes you want to build light. I think that might mean choosing "plastic" over paper for covering!