The Murphy Builders Site

Hi folks,

I just finished reading ahead in the manual and it looks like the fin is
attached with no offset on the SR. Thought I remembered y'all talking about
an offset for the Rebel. Murphy decide to deal with yaw trim with one of
those bent trim tabs on the rudder for the SR?

Mike Kimball
SR #044




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Hi Mike,
I attached the fin as per the manual, but did add a rudder trim tab driven
with a MAC servo. The trim tab is a similar design to the elevator trim tab,
just a lot smaller.
Al
SR#26
----- Original Message -----
From: "Mike Kimball" <agt@mosquitonet.com>
To: <murphy-rebel@dcsol.com>
Sent: Friday, September 21, 2001 6:46 PM
Subject: Vertical Stab alignment


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Hi folks,

I just finished reading ahead in the manual and it looks like the fin is
attached with no offset on the SR. Thought I remembered y'all talking

about

an offset for the Rebel. Murphy decide to deal with yaw trim with one of
those bent trim tabs on the rudder for the SR?

Mike Kimball
SR #044

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Hi Al,

What size is your rudder trim tab?

Peter Kopasovic
SR003




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Peter,
The tab is 2"x11" and is in the second bay up from the bottom of the rudder.
I also stiffened the rudder skins by adding a stringer vertically on each
side, inside the large bays. The stringers are 1/2"x 1/2"x 11" bent up from
.020 6061 scrap.
The trim tab is actuated by a single wire push pull cable. The wire goes
through the rear of the elevator out the skin of the rudder near the trim
tab. The other end of the cable passes through the center of the rear fin
spar and connects to MAC servo mounted above the horizontal stab.
Al



----- Original Message -----
From: <capete@sympatico.ca>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, September 25, 2001 5:40 AM
Subject: Re: Vertical Stab alignment


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Hi Al,

What size is your rudder trim tab?

Peter Kopasovic
SR003

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Peter,
scratch "rear of elevator" and replace with "front of rudder"
Al
----- Original Message -----
From: "Al & Deb Paxhia" <paxhia2@home.com>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, September 25, 2001 4:41 PM
Subject: Re: Vertical Stab alignment


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Peter,
The tab is 2"x11" and is in the second bay up from the bottom of the

rudder.

I also stiffened the rudder skins by adding a stringer vertically on each
side, inside the large bays. The stringers are 1/2"x 1/2"x 11" bent up

from

.020 6061 scrap.
The trim tab is actuated by a single wire push pull cable. The wire goes
through the rear of the elevator out the skin of the rudder near the trim
tab. The other end of the cable passes through the center of the rear fin
spar and connects to MAC servo mounted above the horizontal stab.
Al



----- Original Message -----
From: <capete@sympatico.ca>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, September 25, 2001 5:40 AM
Subject: Re: Vertical Stab alignment

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Hi Al,

What size is your rudder trim tab?

Peter Kopasovic
SR003

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