>One (of the three) pushtubes for the elevator in my KR-2 is 63 inches long
by 1 1/4 diameter by .125 wall. It seems heavy and overdone, but my KR-2
shed 6 pounds in the process of removing the cable system and replacing
with pushrods for the ailerons and elevator. Virtue and peace of mind are
th
Larry,
I weighed the aircraft with the cable system installed using a bathroom scale.
After the remove and replace for the pushrod system, weighed again with the
same bathroom scale. Granted that may have some errors due to internal
repeatability and accuracy, plus my ability to block up the w
My elevator is 1 1/8 " 4130 .035 push rod. As per my plans
Phil Matheson
mathe...@dodo.com.au
VH-PKR ( reserved)
61 3 58833588
See our VW Engines and Home built web page at
http://www.vw-engines.com/
www.homebuilt-aviation.com/
Netters,
Just remember if you desire to make a long run of the pushtube as I did, you
have to increase the diameter of the tube relative to the length. In other
words the longer the bigger. I believe Dana in his RV has one that is thin
wall 1 1/2" T6 aluminum, to go a distance of some 6-7' . M
Netters,
One (of the three) pushtubes for the elevator in my KR-2 is 63 inches long by 1
1/4 diameter by .125 wall. It seems heavy and overdone, but my KR-2 shed 6
pounds in the process of removing the cable system and replacing with pushrods
for the ailerons and elevator. Virtue and peace of
Colin
I have also been working on my elevator control system using push pull
tubes. The tube I have installed was given to me by Gene Byrd and was used
in his KR-2S prior to his crash. He had a bend in his tube which I
eliminated when I cut the tube down to fit my KR-2. The tube is aluminum
7/8 OD.
Gang, along the lines of what Jack just posted I provided Colin with a
materinal list for an elevator pushtube offline. If anyone is interested, I
told Colin it would be OK to forward it to the KRNet. I gave him part
numbers and prices.
Here is a pic of the end of one pushtube. The insert is
>
http://www.jackandsandycooper.com/stickandpedals.html
Nice pedals Jack!
I like the way that the Master Cylinders attach to
Directly to the pedal itself, thus eliminating any
possiblity of differental braking pressure due to the
different mounting positions if you were floor
mounting the Master C
- Original Message -
From: "Dana Overall"
To:
Sent: Wednesday, September 17, 2003 3:54 AM
Subject: RE: KR>Pushtubes
> Gang, along the lines of what Jack just posted I provided Colin with a
> materinal list for an elevator pushtube offline. If anyone is interested,
I
&
Lynn and Dana,
And anyone else that posts; first thank you for all the help thus far. I truly
believe that you all have saved me from a catastrophic failure of the elevator
control. I do not want to sound stubborn, but there are a couple of reasons I
have not abandoned the present tube.
1. I am
Also hooking anything big at all up to the elevator horn in the tail is a
@#$%&^ ! No Room!
Definitely need some experienced thoughts...
Thanks.
Colin Rainey KR2(td)
Colin, You might just chop a hole in aft end of the rear deck and do it
right. It's real easy to put some foam in the opening and
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