I AM FLYING A WORLD MODELS TAI JI 60 RUNNING A HATORI FLEX HEADER PIPE INTO A HATORI 60 PIPE FUEL IS 15% MACH 7 FULL SYN. PLANE IS ABOUT 8 1/4 LB DRY GIVE OR TAKE 1/4 LB FOR CHEAP SCALE

I STARTED OUT WITH A 14X10 GETTING ABOUT 8300-8400 RPMS
THEN WENT TO 13X10 9300-9400 RPMS


I AM NOT GETTING THE VERTICAL THAT I WOULD LIKE STRAIGHT AND LEVEL IS GOOD LITTLE FAST THOUGH

WHAT PROP WOULD GIVE MORE VERT PULL AND CONSTANT SPEED THROUGH INTIRE PATTERN WITHOUT OVER REV. THE MOTOR


THANKS,GARY

15x8 or 16x4 if you have the clearance.

Lose the 15% and put some real fuel in it. The YS engines thrive on NITRO, Cool Power 30% heli fuel is ideal. Try it!

THANK YOU DAVE !



GARY

Good Flying!

Dave, with this amount of nitro, i.e 30%, how much oil content would you suggest?

Thanks and regards

Winrich

Minimum 20%. The Coolpower 30 heli fuel contains about 23 or 24% low viscosity oil, I believe, and this fuel works very well in a YS.