Is there some kind of basic chart to show the relationship of 2 stroke glow engines, compared to electric motors and battery setups? For example what would be the eqivalent to a .10 two stroke in the electric world? Just wondering if there was a basic chart (I realize there are numerous differences in amperage draw and such, I was just looking for a general type of thing.)
Thanks!
Mike B
[email protected]

Sorry, there isn't anything like that. The flexibility of electric power systems allow you to build the exact right power system for the plane and the way you want to fly it. It would be both penny AND pound foolish to do it any other way. You don't want to spend any more than you have to or carry any more weight around than you have to.

Really, the motor itself doesn't matter much as long as it can handle the power necessary to fly the plane. The rest can be hashed out in the propeller and gearbox. It's the battery that is the most important part, because that's where the energy comes from.

Generally speaking, typical sport planes can be powered as such:

.15-size == 8 cell pack
.25-size == 10 cell pack
.40-size == 14-16 cell pack
.60-size == 20-24 cell pack

This assumes a current of 25 Amps for .15 size, 30-35 Amps for .25-size, and 40 Amps for larger planes.

$38 will get you "electricalc" and it will answer your questions. Great program. Fun to learn with.