[rebel-builders] Moose: Elevator trim (crush tube)...was: Ray Allen Servo
Posted: Sun Feb 19, 2012 5:29 pm
Hi All
It's in Elite's as well. The threaded rod will try to bend under compression
from the wind loads on the trim tab, and it has weak spots all along it's
length due to the thread on it. The tube prevents the rod bending and
therefore prevents fatigue cracks setting in. (so I was once told anyway!)
Nig
745E
-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
snowyrvr@mtaonline.net
Sent: 24 August 2009 02:34
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] Moose: Elevator trim (crush tube)...was: Ray
Allen Servo
Man, Ted, that mounting method really sounds hoaky. (yes, that's a word)
I'm guessing the tube's purpose is to prevent exterior bumps from bending
the little rod? Doesn't seem like it'd do much as a stiffener applied ike
that. If I remember, this same El-0032 is in the rebel parts as well; I
just haven't seen a reference to it in the manual...yet. CW
Original Message:
-----------------
From: Ted Waltman tedwaltman@gmail.com
Date: Sun, 23 Aug 2009 18:12:08 -0600
To: rebel-builders@dcsol.com
Subject: [rebel-builders] Moose: Elevator trim (crush tube)...was: Ray
Allen Servo
Part # is "Crush Tube" listed as EL--0032 in the manual. I thought it was
per a service bulletin, but none is shown on the website. The issue is that
the trim tab actuator arm is simply a 1/4-28 threaded rod. That rod will
bend under moderate force. Hence, once one has the rod cut to proper length
and tested for successful full up/down trim travel, one is to spread proseal
on the threaded rod then slide the crush tube over it. The crush tube,
therefore, is simply an aluminum sleeve (pipe, per se).
Hope this helps and makes sense,
Ted
-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Hans
Kuck
Sent: Saturday, August 22, 2009 10:58 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Moose: Ray Allen Servo
TED, could you please mail me a copy of the service bulletin regarding the
Ray Allen Servo. I was not aware that there was such a S.B. to
hansk3d@gmail.com
cheers
Hans
On Fri, Aug 21, 2009 at 7:58 PM, Ted Waltman <tedwaltman@gmail.com> wrote:
Hans Kuck
P.O.Box 2212
Sechelt B.C.
V0N 3A0
Canada
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It's in Elite's as well. The threaded rod will try to bend under compression
from the wind loads on the trim tab, and it has weak spots all along it's
length due to the thread on it. The tube prevents the rod bending and
therefore prevents fatigue cracks setting in. (so I was once told anyway!)
Nig
745E
-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
snowyrvr@mtaonline.net
Sent: 24 August 2009 02:34
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] Moose: Elevator trim (crush tube)...was: Ray
Allen Servo
Man, Ted, that mounting method really sounds hoaky. (yes, that's a word)
I'm guessing the tube's purpose is to prevent exterior bumps from bending
the little rod? Doesn't seem like it'd do much as a stiffener applied ike
that. If I remember, this same El-0032 is in the rebel parts as well; I
just haven't seen a reference to it in the manual...yet. CW
Original Message:
-----------------
From: Ted Waltman tedwaltman@gmail.com
Date: Sun, 23 Aug 2009 18:12:08 -0600
To: rebel-builders@dcsol.com
Subject: [rebel-builders] Moose: Elevator trim (crush tube)...was: Ray
Allen Servo
Part # is "Crush Tube" listed as EL--0032 in the manual. I thought it was
per a service bulletin, but none is shown on the website. The issue is that
the trim tab actuator arm is simply a 1/4-28 threaded rod. That rod will
bend under moderate force. Hence, once one has the rod cut to proper length
and tested for successful full up/down trim travel, one is to spread proseal
on the threaded rod then slide the crush tube over it. The crush tube,
therefore, is simply an aluminum sleeve (pipe, per se).
Hope this helps and makes sense,
Ted
-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Hans
Kuck
Sent: Saturday, August 22, 2009 10:58 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Moose: Ray Allen Servo
TED, could you please mail me a copy of the service bulletin regarding the
Ray Allen Servo. I was not aware that there was such a S.B. to
hansk3d@gmail.com
cheers
Hans
On Fri, Aug 21, 2009 at 7:58 PM, Ted Waltman <tedwaltman@gmail.com> wrote:
theFred,
AFAIK, every Moose owner uses this combination servo/actuator arm. Put
aresleeve on as per the service bulletin (get a sleeve at your local hardware
store if you don't have one already).
Ted
-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Fred
Messinger (fredm)
Sent: Friday, August 21, 2009 3:45 PM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Firewell caulk
Hi Guys,
I'm currently installing the elevator trim tab servo motor on my moose
quick
build.. The one MAM shipped is manufactured by The Ray Allen Company.
Everything (motor casing, clevis forks) is made out of a hard plastic
material. The push rod itself is a threaded metal rod, though.
My questions: Is anyone else using this set up? If not, which system
--you using?
I confess, I'm a little concerned about those flimsy little clevis forks
and
the plastic drive pin....especially in cold weather.
Thanks,
Fred
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Hans Kuck
P.O.Box 2212
Sechelt B.C.
V0N 3A0
Canada
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