91 ac props for pattern
 

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

RE: 91 ac props for pattern
 

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!

RE: 91 ac props for pattern
 

THANK YOU DAVE !



GARY

RE: 91 ac props for pattern
 

Good Flying!

RE: 91 ac props for pattern
 

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

Thanks and regards

Winrich

RE: 91 ac props for pattern
 

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.