ORIGINAL: RysiuM
That puts APC 17x6 on the top of all APC prop for this engine. I mean for thrust, not speed.
Another test with APC 17x6. The engine equipped with the same OS F (long) plug but this time running on gas-methanol mix. I was a little lazy and I mixed 2 oz of methanol with Castrol racing oil for 1:30 and I added 2 oz of pre-mixed gas with Motul 1:30. The result liquid was not clear but no visible layers.
I believe engine will start by hand but as I had to change needle stettings I just used starter. After setting the carb for the best run, I got 7400 rpm (200 more than on gasoline-oil fuel). The iddle was quite reliable around 1800 rpm.
Than I removed power from the glow. The engine didn't drop rpm at all. I got all the range 7400 - 1800 rpm engine running smooth.
So Now I can confirm that gas-methanol mix can run without power on glow plug. However I didn't get much more power tho.
RysiuM