What's it gonna weigh, do you think?

Horizon Hobby (eflite) has 100 and 90 degree electric rotating retracts but the A/C weight limit is 9 pounds.

Kinda pricey but my experience with eflite electric gear has been very good.

There is also an outfit in NZ that sells mechanical rotating retracts for 60 size models. That means a retract servo and a bell crank for each side, but it's doable, and for my money always, always better than air retracts.

http://www.wattsup.co.nz/catalog/pro...eeb28956948a00