A little help

[stephen hollier]

Ok I have a mo best profile powered by a Ro Jett .40 RE and it turns great down, but when I turn the plane up it feels like it's coming off the line almost stalling out. Does anyone have any idea's or has this happen to anyone else?

Thanks in advance

[stephen hollier]

Ty,
If the flaps aren't level won't it make the plane hunt during level flight? This plane is rock solid at level flight both right side up and inverted flight.

[Jim Kraft]

I had a plane doing that one time, and I moved the leadouts back a smidgen. That cured my problem, but I think it just masked something else that was off somewhere. Sure made the plane flyable though.

[stephen hollier]

Every surface is in line. The plane weight is 53 oz power is a RO Jett .40 on muffler pipe. This week I plan on flying so I will check the leadout position. Level flight both up right and inverted wings are level and it tracks well. Do you think mybe it's under power or larger prop?

[john e. holliday]

The RO-Jett .40 should pull that weight and not even grunt.  Mine pulls a heavy weight Accentor with no problem using the Windsor or Thunder Tiger 11 1/2 X 4 1/2 prop.  All synthetic 22% oil and 10% nitro.   

[Trostle]

Every surface is in line. The plane weight is 53 oz power is a RO Jett .40 on muffler pipe. This week I plan on flying so I will check the leadout position. Level flight both up right and inverted wings are level and it tracks well. Do you think mybe it's under power or larger prop?

-  Check the flaps again to make sure they are aligned with each other.

-  Check the elevator/flap adjustment to make sure that the align at zero-zero.

-  Check the elevators to make sure they are aligned with each other.  (I know this one sounds silly, but I have seen on many occasions, with good/carefull builders, the elevators are not aligned and will cause the problem you describe.

-  Try sealing the elevator hinge line, then seal the flap hinge line.

-  Adjust the elevator/flap trim.  First put in down elevator with neutral flap.  If that makes the problem worse, go the other way.

-  Play with different leadout positions.

[stephen hollier]

Thanks guys I will try various thing this coming weekend and let everyone know the outcome.