Brad,

Long time no see! Just spotted this. I made a successful conversion of one of my QM15 Stingers (it last flew in 1992, been gathering dust since then) using the setup taken straight out of my upgraded Stryker. The components are:

MOTOR: E-Flite Six Series brushless, 28 mm diameter, 2700 KV rating
BATTERY: Common Sense R/C 3S1P x 2200 mAh lipo
ESC: Great Planes Electrifly SS-45 Silver Series
PROP: APC 6 x 4E

I had to slide the battery as far forward as possible, but with the long nose on that airplane (typical, since they all were designed around those light .15 glow engines) the CG came out OK. The all-up weight was exactly the same as before, 40.5 oz. With the prop turning at 24K, the speed and handling are just about like what I remember with the Nelson .15 except much quieter of course. If Jerry Small hadn't invented EF-1, I'd be lobbying to race this sort of thing locally.

Cheers,

Duane