Sorry guys could not find my old post on my new G26. I just finished up my first Gal of fuel and had a lot of fun testing props today and had a question. First I have not tweaked the needles yet and the engine is running great. I am running 32:1 oil to gas...... the original prop was an MAS wood 16/8 wood 8300rpm no thrust data on that one.
Second prop was a 16/8 MAS "classic" 8700rpm at 13.3lbs thrust
Third was a 17/6 pro zinger wood 8900rpm at 14lbs thrust
Forth was a APC 16/8 at 8900 rpm at 14lbs thrust
Fifth was a APC 16/4W at 10,400rpm 14.3lbs thrust (not sure where I got this prop) she really winds out on this one ,sounds like to many rev's to me but what do I know....

I only purchased 2 props, the rest were given to me so, My question is what prop should I do next.....I have an 18/6 pro Zinger wood but I would have to get more ground clearance on the h9 Ultra Stick lite......maybe 4"foam tires or mod the landing gear....ect. Looks like a 17/4w would be great but can't find that size. So far the pro Zinger 17/6 and the 16/8 apc look good? Spool up on the APC is a little better but I can see the wood better.....dang APC are just invisible spinning razor blades.LOL

Thanks guys having fun with gas, and the plane is a blast to fly.