Sustaining Knife edge?

[Ed Deaver]

If I'm understanding correctly, engine thrust would pull the plane to the 
left(why we add Right Thrust to compensate) so going from Right to Left, 
seeing top of plane in knife edge, the engine would pull the plane down, 
which is opposite from what you said it is doing so don't think it is that.

I'm not a full scale pilot and this is frequently argued, but I have noticed 
any manuever going into the wind will require LESS surface movement to 
accomplish the task, as opposed to going down wind.  Typically, 4 pt rolls 
and slow rolls are usually easier to do into the wind as the amount of 
control needed to maintain heading and altitude is less than when a person 
flies them downwind(the way they always are in competition)
Another example is a loop, mostly into the wind you only give so much 
elevator to begin the loop, but try one downwind and to accomplish the same 
thing, not accounting for wind drift, you have to pull more elevator to get 
the plane to pull the same radius.

Thirdly, agree with Del, you may be getting different throws or ability to 
hold the rudder with airflow one direction better than the other.  
Especially if it is not a Pull PUll setup.

Ed


>From: "Ihncheol Park" <PatternFlyer at msn.com>
>Reply-To: discussion at nsrca.org
>To: "NSRCA" <discussion at nsrca.org>
>Subject: Sustaining Knife edge?
>Date: Fri, 6 Jun 2003 05:09:02 -0700
>
>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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