HI David
I put an outrunner brushless motor in my 36" RAF Crash Tender. I sourced the motor and speed controller from China. You can use Nimh but I purchased LiPo 11.1v and a charger, you need to be very careful with LiPo charging (and discharging) so don't skimp. There are several suppliers on the web (Model Power / Component Shop) or you can attend a model show, Birchwood is coming up at the end of August. Giant Cod have some reasonably priced brushless motors and ESC's. You do not need a very high powered brushless motor and expensive feedback ESC. You will need to reduce the throw on your throttle stick, I use a Futaba 2.4 Ghz set so can adjust accordingly. There are pictures of my Crash Tender in the Fire Boats photo gallery and the speed is incredible.
Dave

I have just completed a 36 inch model RAF High Speed Crash Rescue tender.
Can you please give me an indication of what size electric motor , battery and prop. I would require in order to drive it at a reasonable speed with say a half hour duration.
Thanks for your help
David
You can go to www.mfacomodrills.com for belt drive brushed motor systems or www.teamnovak.com for brushless motors.
Regards,
John

HI Peter
Thanks for your help, very useful.
Regards
David

Have a look in

[url=http://modelfireboats.com/rc/setups.php]http://modelfireboats.com/rc/setups.php[/url]

Peter