Featherweight Drive Motors

I am working on my new featherweight and am at the point where I should be looking at drive motors. Weight is going to be an issue because of the pneumatics.

Basically I am after any suggestions for drive motors for a feather so I can decide what to go for. The only real limitation is the motor should be as close to inline to the drive shaft as possible due to the space available.

I want to avoid drill motors, but the list so far:

speed 900s
speed 720s
dewalt powerdrive kit
astroflights
banebots 775 motors and planetary gearbox

What other options are available for featherweight drive?

Thanks
Andy

drill motor
bosch 35w

Drill motors
And like ^
Bosch

These are ok and quite like the old technobots gold motors. Got one gear box made so far and you can make up the gear boxes with two bits of nylon 6 and a few spur gears. Just rebuilding BOOM! to work with these and they seem ok so far.

http://www.ebay.co.uk/itm/300511267976

bought a couple myself. They are a copy of a speed 900. Similar specs and dimensionally the same. They drew the same no load currents when I tested them as well.

What would people recommend for a 90 degree gearbox for a speed 900 or are there any motors which come with a 90 degree gearbox already fitted?

Windscreen Wiper motors and Bosch 35's come with 90degree gearboxes I believe.

I am not using wiper motors again!!!

Haha, given their weight and size you'd think they'd be super powerful!

So why avoid drill motors? They're powerful, small, light and some with fitted gearboxes that are equally small and light. There's also a chance the BG is all metal and they are cheap!

for 90 degree gearboxes you are either looking to bosch 35s or to a custom solution