Zn-Line Alliance trimming question

[Peter Pennisi]

Hey Guys,

 

I am starting to get a few flights under my belt with this model. I am happy
with the way the model performs in most areas except in rolls were rudder is
being used. My model suffers from severe pitching to belly in knife edge. I
think I am running about 17% on both left and right rudder. Mind you I fly
soft so it isn't as bad as it sounds. It is about 1/8th inch up elevator on
full rudder.

 

My problem is I am finding it difficult to roll cleanly for example in
reversed point rolls. My old model would do this without a problem (That
sort of excludes my ability being the problem). Whenever I touch the rudder
in any part of the roll the model gets all out of shape. If I roll
vertically either continuously or point rolls the model tracks perfectly.

 

The CG is exactly were CPLR runs his and the elevator trims neutral. The
model also dives and climbs perfectly straight. 

 

Anyone have any experience with this design? 

 

Why does this design pitch so badly in knife edge?

 

Can wing incidence be an issue here?

 

 

Regards,

 


Peter

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