To match the elevator travel to the mass balance arm travel it should
normally be sufficient to make an adjustment to the TP 18A adjustment screw.
You mention that the down travel is limited to 11.7 degrees but you do not
say what the up travel is. Also you do not make it clear whether it is the
elevator that is 11.7 degrees down or the mass balance arm. If I remember
correctly, the only thing which restricts this amount of adjustment
available, is when the mass balance arm weight comes into contact with the
main elevator pitch push rod (hence the need for the dowel and a rubber hose
stop at the bottom of the arm travel).
Ideally you need to disconnect the main elevator pitch push rod, so that the
rest of the control assembly does not interfere with your adjustments. Once
you have got the tail plane and mass balance arm angles set correctly you
can then and reconnect the main push rod and adjust the rest of the control
assembly as necessary.
The important thing is that from top to bottom you have a TOTAL travel of
18 degrees (ie: 13 + 5 ). Incidentally my manual calls for a setting of 12
degrees (elevator up) but maybe this is different in the newer kits.
hope this helps
CP
----- Original Message -----
From: <DJA727@aol.com>
Subject: Yet another question - Pitch tube containment
> Hello all,
>
> Here I go again....... After spending much time adjusting to get the
correct
> travel in the stabilators - down 6y degrees and up 14 degrees - I am
> installing the containment and pitch control stop. I am building it
exactly
> as the plans say and find that once it is in -- it reduces the down travel
of
> the elevator by 3 degrees. I have quadruple checked the measurements --
1MM
> up from the pitch push rod - and I know it is built correctly.
>
> What is the deal with the pitch travel? The book says the final stops will
be
> set at 5 degrees down and 13 degrees up. I am already down to the 11.7
> degrees down with this pitch stop.
>
> Puzzled in Gardnerville with at the wrong time of day.
>
> Dave Anderson
> A227
>
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