Sustaining Knife edge?

[jim ivey]

Ihncheol,
Fly the plane looking at the bottom of plane in knife edge in the same circumstances as you did looking at the top. If you have the same symptoms down wind, then your plane is probably ok, I think your problem is the fact that airspeed + wind speed is considerably different upwind than it is airspeed - wind speed downwind. In other words the rudder has help holding the plane in knife edge, upwind. You also may be a little nose heavy, which will aggravate the problem.

Jim Ivey

----- Original Message -----
From: patterndude at attbi.com
Sent: Monday, June 09, 2003 12:57 PM
To: discussion at nsrca.org
Subject: Re: Sustaining Knife edge?

How much right thrust are you compensating for when flying L to R (seeing top  
of plane)?
  I think P-factor should pull the plane to the belly (L to R) or canopy (R to  
L), so that is not the answer.   

--Lance
>  
>  
> Ihncheol Park wrote:
>  
> > I have a question to ask.
> > Flying condition was very good.  Almost no wind on ground level, maybe a few
> > MPH in the air (flying height).  Wind direction left to right.
> > When I fly knife edge from right to left facing the top of the plane, very
> > little rudder is required to stay on without going up or down.
> >
> > However, from left to right facing the top, the plane just can not stay and
> > keep dropping.
> >
> > What could be the cause of this?
> > Side thrust?
> >
> > Thank you,
> >
> > Ihncheol Park
> >
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