Thanks for replies.

I have the ARF not the RTF, but I ordered separately an Evo trainer prop. My engine is a TT Pro 46. It's broken in, because I did some flying with it many years ago (not much though). That actually leads me to another question... when I used it years ago, I wasn't so particular about rpm's and tuning. With a low pitch prop like this, I guess I'll need to run it richer? I have a tachometer these days, so I guess I could use that to check that it's not over-peaking with the 10x4 trainer prop?

The trainer prop offers a few nice characteristics useful for the first few flights... been a long time and I'll have the jitters even if for no particular reason. I'll change to a normal prop soon after.

Cheers