Many years ago, I used a Cox Babe Bee engine for many CL models, as well as an RC Trainer (Sure Flite "Baby Turkey"). The CL models were all good, but the RC trainer just glided to the ground after hand launching, as it was too heavy (both by design, and due to the standard size servos I used at the time
Since then, I've acquired a few more small engines, including the Cox Surestart, OS 10FSR and Enya 11CXD RC.
Now, I'd like to get back into RC by starting off with a suitable trainer.
Looking around the web, I've noticed that most people recommend a "40 size engine" as a minimum, since trainers designed for these engines are large, easily transported in a car, and stable, even in windy conditions. Others recommend electric "foamie" type models.
In the interests of saving money and using what I have, is it OK to use a small engine for an RC trainer (due to the lighter and smaller RC equipment available these days), or should I just go ahead and buy a larger (.40 or .46 cu. in.) engine?
Alternatively, would an RTF electric trainer be just as good ?
To help me decide which way to go, I'd like to hear your opinions please.
Thanks very much