FUS-30 & MATCO Brake Problems

Mike Davis · Post by **Mike Davis** » Fri Feb 17, 2012 5:26 pm

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To: "Murphy Rebel Builders List" <murphy-rebel@dcsol.com>
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Subject: Re: FUS-30 & MATCO Brake Problems
Date: Tue, 31 Aug 1999 23:11:45 -0400
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Bob: FUS-49 is the tailspring bulkhead. FUS-30 is the tail wrap that =
is cracking etc.on some Rebels.

I have the silver Matco wheels and the axles are the same diameter. =20

I am planning to attend the meeting 0n the 19th. I will bring pictures =
and a drawing of the spring gear mod that Allister was describing in =
todays message "Re: spring gear strengthening"

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<DIV><FONT color=3D#000000 size=3D2>Bob:  FUS-49 is the tailspring=20
bulkhead.  FUS-30 is the tail wrap that is cracking etc.on some=20
Rebels.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>I have the silver Matco wheels and =
the axles are=20
the same diameter.  </FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>I am planning to attend the meeting =
0n the=20
19th.  I will bring pictures and a drawing of the spring gear mod =
that=20
Allister was describing in todays message "Re: spring gear=20
strengthening"</FONT></DIV></BODY></HTML>

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Mike Davis · Post by **Mike Davis** » Fri Feb 17, 2012 5:26 pm

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Subject: Re: FUS-30 & MATCO Brake Problems
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I have the gold 6.00x6 wheels installed and hate to toss them since the
machine
will be going on floats after a year or two. I know the matco brakes are
weak
but I think I can live with that. Am I fooling myself?

Is there any longevity problem with the Matco units or anything in
particular to
watch for? The brake discs on these wheels bolt to 3 tabs that are welded to
the
rims .

The 1650# gear upgrade has been done so the axles are 7/8".

Ken
R119

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Mike Davis · Post by **Mike Davis** » Fri Feb 17, 2012 5:26 pm

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Subject: Re: FUS-30 & MATCO Brake Problems
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YOU MENTIONED RELOCATING THE BOTTOM OF THE BRAKE PEDAL CYLINDERS. IF THIS
IMPROVES BRAKE ACTION, I WOULD BE INTERESTED IN MORE DETAILS. I HAVE THE
NEWER STYLE MURPHY BRAKES.

BILL NEWKIRK

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Mike Davis · Post by **Mike Davis** » Fri Feb 17, 2012 5:26 pm

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From: "Alister Yeoman" <yeoman@voyager.co.nz>
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Subject: Re: FUS-30 & MATCO Brake Problems
Date: Fri, 3 Sep 1999 08:32:17 +1200
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Hi Bill,

There was a session on this in this forum not so long ago, it should be in
the archives.

It simply involves making a new bracket to mount the bottom of the brake
cylinders on the floor in front of the rudder pedal mounting. As the rudder
pedal is moved forward and backward the brake cylinder should remain
parrallel to it.

This ensures the brake pedal remains at a constant angle at any rudder
delection. ( Great for stopping ground loops!!!)

It is a very good mod.

Cheers

Alister

-----Original Message-----
From: BILNEWKIRK@aol.com <BILNEWKIRK@aol.com>
To: murphy-rebel@dcsol.com <murphy-rebel@dcsol.com>
Date: Friday, September 03, 1999 5:31 AM
Subject: Re: FUS-30 & MATCO Brake Problems

YOU MENTIONED RELOCATING THE BOTTOM OF THE BRAKE PEDAL CYLINDERS. IF THIS
IMPROVES BRAKE ACTION, I WOULD BE INTERESTED IN MORE DETAILS. I HAVE THE
NEWER STYLE MURPHY BRAKES.

BILL NEWKIRK
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Mike Davis · Post by **Mike Davis** » Fri Feb 17, 2012 5:26 pm

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To: <murphy-rebel@dcsol.com> (Murphy Rebel Builders List)
From: Bob Patterson <bob.patterson@canrem.com>
Subject: Re: FUS-30 & MATCO Brake Problems
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Date: Thu, 2 Sep 1999 23:54:01 -0400

As I recall, the GOLD Matcos were only rated for 600 Lb. load (!!!).
There have been a few cases of the rims splitting on heavier Rebels.

As for the effectiveness of the small Matco brakes - it's mostly wishful
thinking. They would NOT hold a Subaru - powered Rebel with much more than
idle power. There is virtually NO effectiveness in trying to turn sharply
- there wouldn't be enough braking force to pop out the kick-out tailwheel !
Slowing down after landing ... well, there's more drag from leaving the
flaps down than from the brakes !

The Gold Matco's were only marginally suitable for Renegades,
Mavericks,
and ultra-light Rebels....

You probably should talk to Angus McKenzie at the next builders meeting
- he just replaced his Silver Matcos after less than 50 hours flying. I
think the disk retainers cracked ... but he can give you the full story.
One consideration might be the difficulty he encountered in converting
to the Murphy wheels after-the-fact....

It might be worth a phone call to Colleen at Murphy regarding a trade-in
on the Matcos - I'm sure they don't want anybody damaging their new Rebel.

.....bobp

---------------------------orig.------------------------------------------
At 06:24 PM 9/1/99 -0400, you wrote:

I have the gold 6.00x6 wheels installed and hate to toss them since the

machine

will be going on floats after a year or two. I know the matco brakes are

weak

but I think I can live with that. Am I fooling myself?

Is there any longevity problem with the Matco units or anything in

particular to

watch for? The brake discs on these wheels bolt to 3 tabs that are welded

to the

rims .

The 1650# gear upgrade has been done so the axles are 7/8".

Ken
R119
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between builders and owners of Murphy Rebel aircraft.
Archives located at:
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