Has anyone converted an Arresti III ARF for electric operation?
Is space limited in the front cowl area, would a AXI 5330/18 Electric Outrunner Brushless Motor? They are 63mm (2-7/16") diameter and are 64mm (2-1/5") from back to front. Is there enough space to fit one of these motors?

Can you keep below the weight limit with that setup in the Arresti III? It seems a bit heavy to me.

/Erik

I have two Arresti IIIs. First is right at 11 lbs (5kg) without fuel. Second is about 10.8 lbs. Both have a carbon fiber wing tube, landing gear, wheel pants, light spinner, etc. to get to these weights. I'd think it would be very difficult to get one below 5 kg with an electric setup to include batteries.

Jon Lowe

try some other perhaps geared setups...... I did a USA star this last winter that was less than 10 lbs, and it had adequate power.
used a Maxcim motor and 20 round cells....not lithiums...I'm not convinced that Lithium is the answer for E powered models yet, especially when I can get 10 min flights fairly easily with Nicad or Nimh cells at a LOT less expense, and not really any problem with performance. I say this after having used lithium cells in some of my larger models, and coming to the conclusion that there wasn't really enough advantage to justify the cost. That being said, I have to say that for the smaller type ( park) models, lithium cells are a God send. Several years ago a friend of mine did a 72" Dream that used nicads, and it flew well with really good power, and would still KE after 15 min . larger motor/lithium battery setups don't necessarily give better service for 95% of us. He used a Maxcim Y wind...4 to 1 reduction, 24 cells and a 14X10 APC E prop. Same goes for the argument that a certain motor is 5 or 7 % more efficient than another..... 99% of us would never tell the difference between them if we flew identical models with the two different motors.
7% makes a difference of less than 1 minute every 12 ( theoretically) and a smaller power train doesn't necessarily translate into less power./performance..........................just my opinion from experience.

I have been working on some electric Ideas and the AXI is a good choice then you might want to wait for the new Castle Creations 110 amp controller, it should be out in about 3 weeks.. Austin at MaxAmps.com is getting some new Lipo cells and they will be smaller and a 10s2p pack around 26-28 oz. He should have them next week and is going to make a pack of 2- 5s2p and see what the final weight is..
I was at SEFF and had the chance to see several of the electric pattern planes.. More watts/lbs is better and your going to need a big prop 18-22 inch dia.

I have a Focus 2 right now it's 7.1 lbs with out glow motor and header and pipe.. And have been looking at doing a E-plane with it.

Scott