The Murphy Builders Site

Either that or my hinges are to close together. I can shove it in but
it's a tight fit and has lots of drag. Even tighter with the plastic
washer Wayne sent me some time back. looking for options to fix it. I
could remove the top hinge and use a small round file to make the spar
holes into 'slots' for a bit of adjustment. I could grind a small
amount off the faces of both hinges. Or maybe I should bite the bullet
and fab a new top hinge that has more clearance. What do you guys
think? Anyone dealt with this? Thanks much,
Joel
Rebel #416



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It's because MAM made a new Rudder horn that was thicker than the
original... and then never changed the dimensions shown to build the fin
to.

Is your fin already on the fuselage Joel? If not you can slot the existing
holes that the bottom hinge is bolted to... so you can move it down an
1/8th
or so...and make a little doubler to go behind the fin spar with clean
holes
to hold the hinge there and rivet this doubler to the spar with a few
rivets. If the fin is already on the fuselage..... and I've done it a few
times over the years... take a piece of raw stock angle and make a new
upper
hinge with a longer bolt face.

----- Original Message -----
From: "Joel Jacobs" <jj7499@gmail.com>
To: "Rebel Builders" <rebel-builders@dcsol.com>
Sent: Tuesday, October 06, 2009 8:17 PM
Subject: [rebel-builders] Rudder is too long

Either that or my hinges are to close together. I can shove it in but
it's a tight fit and has lots of drag. Even tighter with the plastic
washer Wayne sent me some time back. looking for options to fix it. I
could remove the top hinge and use a small round file to make the spar
holes into 'slots' for a bit of adjustment. I could grind a small
amount off the faces of both hinges. Or maybe I should bite the bullet
and fab a new top hinge that has more clearance. What do you guys
think? Anyone dealt with this? Thanks much,
Joel
Rebel #416



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..or drill off the rudder horn and mill a few thou off of the contact area
and re-rivet it on.

----- Original Message -----
From: "Wayne G. O'Shea" <oifa@irishfield.on.ca>
To: <rebel-builders@dcsol.com>
Sent: Tuesday, October 06, 2009 8:31 PM
Subject: Re: [rebel-builders] Rudder is too long

It's because MAM made a new Rudder horn that was thicker than the
original... and then never changed the dimensions shown to build the fin
to.

Is your fin already on the fuselage Joel? If not you can slot the existing
holes that the bottom hinge is bolted to... so you can move it down an
1/8th
or so...and make a little doubler to go behind the fin spar with clean
holes
to hold the hinge there and rivet this doubler to the spar with a few
rivets. If the fin is already on the fuselage..... and I've done it a few
times over the years... take a piece of raw stock angle and make a new
upper
hinge with a longer bolt face.

----- Original Message -----
From: "Joel Jacobs" <jj7499@gmail.com>
To: "Rebel Builders" <rebel-builders@dcsol.com>
Sent: Tuesday, October 06, 2009 8:17 PM
Subject: [rebel-builders] Rudder is too long

Either that or my hinges are to close together. I can shove it in but
it's a tight fit and has lots of drag. Even tighter with the plastic
washer Wayne sent me some time back. looking for options to fix it. I
could remove the top hinge and use a small round file to make the spar
holes into 'slots' for a bit of adjustment. I could grind a small
amount off the faces of both hinges. Or maybe I should bite the bullet
and fab a new top hinge that has more clearance. What do you guys
think? Anyone dealt with this? Thanks much,
Joel
Rebel #416



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Thanks for the ideas Wayne. The fin is already installed. I'm leaning
toward making a new top hinge.
Joel

Wayne G. O'Shea wrote:

..or drill off the rudder horn and mill a few thou off of the contact area
and re-rivet it on.

----- Original Message -----
From: "Wayne G. O'Shea" <oifa@irishfield.on.ca>
To: <rebel-builders@dcsol.com>
Sent: Tuesday, October 06, 2009 8:31 PM
Subject: Re: [rebel-builders] Rudder is too long

It's because MAM made a new Rudder horn that was thicker than the
original... and then never changed the dimensions shown to build the fin
to.

Is your fin already on the fuselage Joel? If not you can slot the existing
holes that the bottom hinge is bolted to... so you can move it down an
1/8th
or so...and make a little doubler to go behind the fin spar with clean
holes
to hold the hinge there and rivet this doubler to the spar with a few
rivets. If the fin is already on the fuselage..... and I've done it a few
times over the years... take a piece of raw stock angle and make a new
upper
hinge with a longer bolt face.

----- Original Message -----
From: "Joel Jacobs" <jj7499@gmail.com>
To: "Rebel Builders" <rebel-builders@dcsol.com>
Sent: Tuesday, October 06, 2009 8:17 PM
Subject: [rebel-builders] Rudder is too long

Hmm, I have some bushing stock. Maybe I could make one with a
shoulder on top that would fit inside the rivet circle and not use the
washer.

Joel

On Wed, Oct 7, 2009 at 4:50 PM, Ken <klehman@albedo.net> wrote:

Joel

FWIW I found that using a nylon washer that fit inside the rivet circle
on the bottom of the rudder instead of Wayne's large washer gave me
sufficient clearance. I keep an eye to may sure nothing rubs but it's
been fine.

Highly recommend that you incorporate a bronze bushing in the bottom
hinge if/when you change anything. All the foot pressure on the rudder
pedals pull on that bearing. Even my lightly loaded and frequently oiled
elevator pivots are starting to loosen up a bit at 300 hours so
eventually I will bush them as well.

Ken

Joel Jacobs wrote:

Thanks for the ideas Wayne. The fin is already installed. I'm leaning
toward making a new top hinge.
Joel

Wayne G. O'Shea wrote:

area

fin

existing

few

but

I

spar

bullet

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Hi Ken,

I'm going to need some of those washer/pogs for mounting my controls. Can
you give me a source? Thanks, Craig