ORIGINAL: asmund
He doesn`t need the power of the 91 fx but it is also possible to throttle back a little. Anyway my first recommandation was a light, powerful and cheap engine. Cheap can be good in the beginning to reduce cost of a possible fatal crash.
You want a light. inexpensive, powerful for class + user friendly and ultra reliable .61?? O.S. already make one. An obvious choice, it's called the 65LA. Yet again, another undeserved victim of vogue.
Around here we run alot of ASP, SC and Magnums and have no problems with them.
Not intended disrespectfully Asmund, I simply don't believe your "no problems" claim. We've a share of Magnums and ASPs everywhere here too, and I well remember SC and why it and the ASP brand were locally unmarketable and unwanted orphans for so long after their initial intro here back in the late 80's. I also have eyes, ears and an intellect capable of analytical observation of their contemporary product. Undeniably, now, some certainly do run OK, but they're still mediocre at best at way too high a pricepoint for anything produced in PRC to the QC standard they are. There will always be buyers who buy soley on price or who can't pass up a seeming 'bargain'. I'm not one of them. Anything Sanye is too much of a lottery, and I'm
not a gambler. Again do a search here. Threads will reveal.
And there actually IS a chanse he could go wrong by the 61 fx, or can you absolutely guarantee that it will not peel its nikel??
Well yes, just like there's a chance we could all die in infancy too. But being born in a Western country with our statistically low infant mortality rates compared to undeveloped impoverished countries kinda' drastically reduces the probability of that occurring. The analogy being that buying O.S. generally does too, but undeniably every manufacturer has its occasional problem child. And that's even without considering the fact that pretty much any idiot or person with zero mechanical aptitude, which accounts for a high proportion of the chracteristic new entrant into RC today, can destroy any engine without a lot applied intelligence. But to actually challenge your peeling point, can you point me to a single mentioned incident of an actual .61FX liner peeling characteristic of the manufacturing flaw that did actually occur with early through mid production .46FX engines. It occurred with the .46FX liners only TMK...???
This is why I mentioned the 91 fx, almost the same weight and identical mounting space, it has a ring and steel sleeve (no peeling, guaranteed

) If the power is not needed just reduse the power on the stick.
That's a comforting theory for the classroom Asmund. Unfortunately it's absolutely flawed in practice in the dynamic teaching environment of aviation instruction be it full size or RC. Three words.
L o a d__ s h e d__ t h r e s h o l d. Or in RC jargon, "brain jam", "brain fudge", "numb thumbs".
I had the first bach of 91`s with bad remote needles which gave me alot of deadsticks, but I DO actually do quite some research and as far as I can tell the problems with the 91 fx has been taken care of, mine too:-)
That's heartening to hear. Such a shame Super Tigre doesn't apply a similar
modus operandi to theirs (problems).