REBEL - Elevator and Rudder Spar tube construction
Posted: Sat Feb 18, 2012 12:01 am
This ones way too late for most of you, but any new guys starting out should
note that Murphy had a great idea with the steel AIL-26 bushing and bolt for
the elevator and rudder hinges. This would supposably allow the bolt to run
inside the bushing, instead of the bushing turning inside the aluminum hinge
bracket.
HOWEVER... since they had us all install FLOATING anchor nuts inside the
spar tube caps, unless you tighten the hinge bolt up quite snuggly there
ends up being too much slop in these control surfaces and we end up turning
the AIL-26 inside the Aluminum bracket because of this.
To avoid this issue and get full usage out of a "throw away" bushing and
bolt, for longevity of your airframe, I highly suggest replacing the
floating anchor nuts supplied with your kit with FIXED 1/4" two lug anchors.
This way you will be able to snug the bolt up until it can still rotate
inside the AIL-26 and the bolt won't wiggle around since it's in a fixed
anchor nut. With the floating anchors if you try this you have a few degrees
of rock in every direction so it's not feasible. Using the fixed anchor nuts
will allow the AIL-26 to be nice and tight in the aluminum bracket so the
bracket never wears out and will restrict wear to just the bolt and the
AIL-26 (that are both easily replaced).
Cheers,
Wayne O'Shea
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note that Murphy had a great idea with the steel AIL-26 bushing and bolt for
the elevator and rudder hinges. This would supposably allow the bolt to run
inside the bushing, instead of the bushing turning inside the aluminum hinge
bracket.
HOWEVER... since they had us all install FLOATING anchor nuts inside the
spar tube caps, unless you tighten the hinge bolt up quite snuggly there
ends up being too much slop in these control surfaces and we end up turning
the AIL-26 inside the Aluminum bracket because of this.
To avoid this issue and get full usage out of a "throw away" bushing and
bolt, for longevity of your airframe, I highly suggest replacing the
floating anchor nuts supplied with your kit with FIXED 1/4" two lug anchors.
This way you will be able to snug the bolt up until it can still rotate
inside the AIL-26 and the bolt won't wiggle around since it's in a fixed
anchor nut. With the floating anchors if you try this you have a few degrees
of rock in every direction so it's not feasible. Using the fixed anchor nuts
will allow the AIL-26 to be nice and tight in the aluminum bracket so the
bracket never wears out and will restrict wear to just the bolt and the
AIL-26 (that are both easily replaced).
Cheers,
Wayne O'Shea
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To unsubscribe from this list go to:
https://www.dcsol.com/public/code/html-subscribe.wcx
Archives located at https://rebel:builder@www.dcsol.com/default.htm
To contact the list admin, e-mail mike.davis@dcsol.com
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username "rebel" password "builder"
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