5 Steps to Trimming a Pattern Plane

[Rcmaster199 at aol.com]

If I read both your commentaries correctly, the elevator mix when  at idle, 
to help eliminate the up pitch of the down line, should also help  the inverted 
spin entries. Particularly on a nose heavy plane (or one with  considerable 
pos incidence), it seems to me that down elv mix at idle  should help both 
conditions. What did i miss?
 
MattK
 
 
In a message dated 11/28/2004 9:34:36 PM Eastern Standard Time,  
dszczur at maranatha.net writes:

Lance, thanks very much for the comments.   Bottom line is do what ever it 
takes to make the plane fly the way you want it  to.  Mechanical, or electronic, 
or both. The vertical stab helps to  stabilize in neg spin entry, and because 
I fly nose heavy, I don't feel the  extra down mix in a spin entry.  Now, 
realize I don't have very much  mix in... so that is less of an overall factor.
 
Don

----- Original Message ----- 
From:  _Lance Van Nostrand_ (mailto:patterndude at comcast.net)  
To: _discussion at nsrca.org_ (mailto:discussion at nsrca.org)  
Sent: Friday, November 26, 2004 1:14  AM
Subject: Re: 5 Steps to Trimming a  Pattern Plane


Don,
Clearly this works for you, but I am still  unconvinced.  Wouldn't more pos 
incidence in the wing, to assist spin  entries, only work for upright spins?  
FAI has inverted spins, and this  should work in the opposite direction.  Same 
goes for the Throttle/Elv  mix. When you reduce throttle to enter the spin, 
the elv mix that was put in  for downlines might affect your spin approach.  And 
when the spin entry  is inverted you'll have to really get on the down elv to 
maintain level  approach.  I guess it can work, but it seems like its 
introducing  factors that make the pilot begin to fly against the mix.
--Lance
 

----- Original Message ----- 
From:  _Don Szczur_ (mailto:dszczur at maranatha.net)  
To: _discussion at nsrca.org_ (mailto:discussion at nsrca.org)  
Sent: Monday, November 22, 2004 10:29  PM
Subject: Re: 5 Steps to Trimming a  Pattern Plane


Lance, incidence may take care of pitch or  roll, but not always.  In fact, I 
found that changing wing  (panel) incidence has the most dramatic impact on 
slow flight, such  as entries to a spin.  CG and wing balance also play some 
part  in this mix. The electronic mixing takes care of what incidence  changes, 
(wing warping, etc.) will not address in a down line, or, if  you choose to 
just electronically dial out the tendency.
 
Cheers!
 
Don





 
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