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indigoonlatigo(at)msn.com
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 Posted: Fri Mar 23, 2007 3:53 pm Post subject: Elevator travel after pushrods are all connected. |
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I am looking at pages 39-10, figure 2 and figure 3.
I set the elevator bellcrank into the nuetral position by using the angle
fabricated in an earlier section. The elevator counter balance horns are in
line with the HS when this is done.(GOOD)
My question is that I fabricated the Guage, step 1 page 39-10 and used it to
nuetral my control stick and line up the bearing hole in pushrod F-1089 with
the fork of part WD 1010. The bottom of step 2, it says perform final check
of control system once elevators are installed and check that the elevator
horns contact their stops prior to anything else in the control column
touching.
I have a problem that the F1065, page 39-8, figure 3 contacts the forward
most portion of the cutout in the tunnel side skins before the elevator
horns contact the aft elevator stop. It translates into about 1/4" of stick
pull back at the top of the stick and everthing torques a bit and then the
stop works. If if reset the position which the guage establishes, that would
give me more room to pull back on the stick and engage the elevator stop,
but it would also make the control stick in a more forward position while
elevators are in their neutral position.
What to do? Trim the cut out in the tunnel side skin maybe 1/4"
One other point.
No one ever mentioned anything about my comment regarding a binding point in
the system.
Page 39-8, figure 3, the bolts that tie F-1065 to the control bases,
WD-1011(R) (L), bind on part F-1033(R) (L) found on page 39-7 fig 4, when
the stick is pulled back to the most up elevator position then giving full
aileron to either side. If one does not push the stick forward before
neutralizing the ailerons, the stick is stuck in that aileron position.
(Again, Are their aileron stops in the wings that prevent these nuts from
getting hung up on part F-1033?)
John G. 409
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jesse(at)saintaviation.co
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| Posted: Fri Mar 23, 2007 4:24 pm Post subject: Elevator travel after pushrods are all connected. |
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We have had to trim that cutout on at least one plane, and possibly more. I
think I remember reading somewhere in the plans that this might be
necessary.
On the binding issue, that will probably be taken care of with the aileron
stops, because I have never seen that issue, but I can't be sure without
actually looking at the plans and then looking at the plane. I will try to
get to that tomorrow, but I can't promise.
Do not archive
Jesse Saint
Saint Aviation, Inc.
jesse(at)saintaviation.com
www.saintaviation.com
Cell: 352-427-0285
Fax: 815-377-3694
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jhasbrouck(at)woh.rr.com
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| Posted: Fri Mar 23, 2007 4:32 pm Post subject: Elevator travel after pushrods are all connected. |
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John,
I found the same interferences with the hardware of the control stick
bases and the structure so I reversed all the hardware from the orientation
shown in the diagram. ( I don't have the plans with me so I can't give you
a figure number.) When I did that most of the interference went away. I
also found I needed to adjust the elevator tubes without relying on the two
jigs in the plans. There was some interference with the bottom of the
bellcrank ( battery box area) in full down travel and also some as you
describe with the tunnel sides. Took some playing with the rod ends to make
it work. Goal is to get full elevator travel without interference in the
system. I found to jigs to be less than helpfull. Previously posted this
some time back. Jesse commented that he hasn't seen this problem with his
planes so I can't say how common it is. I was feeling like the Loan Ranger
there for a while......John Hasbrouck
#40264
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