Sustaining Knife edge?

[george kennie]

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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