REFLECTOR: STRONG PITCH TRIM SYSTEM

Scott Derrick scott at tnstaafl.net
Fri Nov 5 08:49:03 CST 2004


Scott,

I'm also fairly happy with the standard pitch system, but I think the roll 
trim is of poor design.  I haven't heard much if any positive feedback 
about it.

In my airplane it does work as long as you don't touch the stick, but move 
the stick and you have to retrim all over again.

Scott

At 03:07 AM 11/5/2004, you wrote:
>I find it interesting to read about builder rejection towards the 
>fiberglass spring/linear actuator pitch trim mechanism.  True, it looks 
>highly unconventional (so does the aircraft!) - but I have found that it 
>works quite well.  In fact, I think it is one of the finer design features 
>of the aircraft.  The spring is designed to provide more strength when it 
>is needed - during landing, and less strength when trimming the aircraft 
>at cruising speeds.  The system functions rather well.  I enjoy the fact 
>that the aircraft is 'rock steady' in pitch.  All in all, I can't think of 
>a reason not to like the existing pitch trim system.
>If I read correctly, the motive for installing the first "Strong Pitch 
>Trim System" was to gain additional clearance behind the instrument panel, 
>not because the original fiberglass set up did not work well.
>I'm all for trying new things - and the Strong system looks 
>interesting.  But I'm also a follower of the "if it ain't broke, don't fix 
>it" fan club.
>Scott B.
>
>
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