Engine and servos question here. I am buying the Troublemaker and Eyeball kits from Eureka Aircraft and am starting to think about the equipment for them. I will be using them for sport flying, not competition.

Engine - they both seem like fairly small, light models and a current 60 or 90 2S (is there really any other kind of engine?) seems fairly excessive. I am thinking that a ST 51 would be a nice match. It weighs only 12.4oz (without muffler) and a Macs one piece muffler is only about 2.5oz for an AUW of 15oz with enough power to spin an 11" prop very well. Our LHS also has them on sale right now for a decent price and I like ST engines in general. Any thoughts, alternatives, etc.?

Servos - I have a stack of standard ball bearing servos NIB, are these enough for these planes? I will be running two aileron servos and a 6.0V NiMH flight pack as well.


Thanks,
Mark

Those servos are certainly all you need, and much better than what those models would have been flown with in their day. No need for coreless double BB or digital servos for the average sport model.

I agree with you that the 60 size engines of that time were no more powerful than todays 45's...I have had good success using the OS50SX in models that were designed for the K&B 61...of course you can still buy those engines for less than the higher priced OS's, Webra's etc.

If you can get the ST at a good price & you like those engines go for it. I haven't used any of the Chinese Tigres but they should be fine- we just have zero ST use around here.