RE: DL50 props and RPM
JXF 22x8
Poulan Chainsaw/wead eater oil @ 40:1
16-20 ounces of fuel burned
stock muffler
6700-6800 not peaked, just adjusted so it would idle and run up pretty clean.
I had to lean it way down after the first flight, have not tached it since then. I know what I need to know, it's PLENTY of engine for a 14# plane, almost too much, but it's fun [8D]
I have a PT carbon 22x8 and a JXF 22x10, but I probably won't tach them unless there is a need to put them on. I'm very happy with the 22x8, until it gets broken I will probably stick with it.
My ignition appears to use 150-175 mah per 10 minute flight.