Hey there,
I have a DLE35RA on the way and I need to order some props. What size do I need for break-in? Is there a crucial size for this? It's just that I noticed on Aeroworks website that they say 18X10 for break-in but I haven't seen this suggestion anywhere else so could I use a 19X8 for the break-in as that's the prop I want to use anyway.
Thanks a lot.<br type="_moz" />

I think your prop of choice would be the perfect selection. But I would put a frank bowman ring in your engine for the best break in and performance. The Chinese rings take for ever to seat

+1 on the Bowman ring.

Use any prop you want. Use any high quality oil you want. Set the needle at best performance and fly. the rest happens in time. Dennis

In my opinion there is no such thing as a break-in prop. Use whatever prop you intend to fly with your plane and what works best for your engine.
The only "break-in" thing to do generally is use a little more oil, going by manufactures recommendations.