I have Extra 3.25 kit and I'm thinking of building it as electric. what kind of engine, esc, battery and servos should I use.
thanks all,

MM

I'm not familiar with the model, and Tower quit listing thier specs when Lanier closed down.

What's the wingspan, weight, and recommended glow engine?

Lanier Extra 3.25 specs:
http://www.happyhobby.com/hobb_html/...extra_3_25.htm

I found this motor which states it is an especially good match for 4- to 5-pound scale airplanes on the market ... Kadet LT-25, Sig Frazer, Lanier Extra 3.25, Global Tequila Sunrise 25 and others: http://www.e-fliterc.com/Products/De...odID=EFLM4025A

You can probably find one cheaper, and I am not sure what size ESC you will need (possibly 50-60 amp) but its a rough idea of the high cost you will endure to convert this plane to electric.

EDIT: I have been looking and I found more info here: http://www.hobbyworks.com/default.cf...D=469522&hs=RC

Needed to Complete if you purchase this motor:
* 40A - 45A Brushless ESC
* 3S - 4S Li-Po or 10 - 14 Cell Ni-MH/Ni-Cd
* 11x8 to 14x7 Prop

These servos would probably be OK http://www3.towerhobbies.com/cgi-bin...&I=LXN676&P=ML
Personally I like Futaba http://www3.towerhobbies.com/cgi-bin...&I=LXNCV6&P=ML but any micro servo should be OK

Some more recommendations:
http://www.rcuniverse.com/product_gu...cfm?kit_id=111

I have a 3 1/2 lb Modeltech Magic that I fly with this motor:


http://www.hobbycity.com/hobbycity/s...idProduct=3887

And this ESC:

http://www.hobbycity.com/hobbycity/s...idProduct=2165

And these batteries:

http://www.hobbycity.com/hobbycity/s...idProduct=7363

I have been really happy with this setup. The ESC does get warm, but has not failed on me yet. If I were to do it over, I'd spend the extra few bucks for a 60A ESC.

It was much cheaper to electrify this plane than I thought it would be. For servos, I usually use Hitech 311's. They have worked great for me and cost $9.99 at my LHS.

Good luck