David,

it all really depends on the scale of the model. Dalotels come in all sizes. However, I wouldn't put a FIRE engine into a Dalotel. The exhaust setup would be a little messy and you really don't want a tuned pipe on a scale model like that sticking out the side. I'd think a SE engine would be the way to go with a Pitts style muffler. A 4 stroke would of course also work nicely. The cleanest setup would be to go with an outrunner.

What I've come to appreciate over time about electrics (among other things) is that the startup cost for building an electric model is relatively low. A typical motor/ESC combo can cost half as much as a 2C (give or take) and a third or quarter of a 4C. This makes the build of the model cheaper. It's not until you actually need some fuel that electrics cost a tad more.

Lately, on larger models, particularly scale models, I've been thinking about powering electrics with Li-Fe cells. A123's provide peace of mind on expensive fuel, are inexpensive compared to Lipo's and the only main disadvantage (compared to Lipo's) of additional weight can usually be carried by the larger models. I've been deliberating for quite a while now on whether to setup a 30% CAP with and outrunner and LiFe's or whether to go the standard sensible route with gas. I guess I like the challenge of figuring out the electric route. 14s2p 4600 mAh A123's at 3000W should power up a 14 lb model effectively

David.