The Murphy Builders Site

Best stuff that I've ever used is Locktite PST. It's a sealant that comes
in tubes. Good for stainless to stainless pipe fittings, which are the
absolute worst in the world to get to seal. It seals well, remains pliable
and lubricates well. Unlike teflon tape, won't cause problems in the
systems. I get it from Grainger.

IMHO

Bill


----- Original Message -----
From: "David Stroud" <davestroud@rogers.com>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, November 18, 2003 4:02 PM
Subject: Re: M14 Air uses and joints thereof

I'm aware of plumbers tape etc. and I've used a bit of some gooey compound

on hydraulic line

fittings such as brake cylinders too, but on Jim Kimball's pictures of the

air cylinder and related

parts, it looks like some kind of sealing compound is used there too. Any

ideas of what compound

is typically used on a pneumatic fitting? Thanks.

Dave Stroud, Ottawa, Canada
Christavia Mk 1 C-FDWS
Fairchild 51, early construction


----- Original Message -----
From: "Bill Delcambre" <bdelcambre@cox-internet.com>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, November 18, 2003 4:42 PM
Subject: Re: M14 Air uses

Don't know much about Yaks. Bet George could shed some light. Close

buddy

had a Nanchang and I can tell you that a BUNCH of stuff was pneumatic.
Starter, flaps, brakes, gear retract and maybe more. Interesting thing

is

that he absolutely never had any trouble with any of the air systems.

Those

things worked perfectly, every time. Any time I ask M14 guys their

opinion

about electric starting, the reaction is the same; "why mess with the

best

part of the engine!"

As for the hover craft skirts; I like the way you think! THIS is the
spirit of 'experimental aircraft'!

Bill

----- Original Message -----
From: "Scott & Leere' Aldrich" <flynski@mwutah.com>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, November 18, 2003 12:26 PM
Subject: RE: M14 Air uses

Doesn't the Yak uses air for a lot of things?

Your right no vacuum on the jets (oh, except the toilets on some..),

gyros

are all electric (and most are ring laser with no moving parts).
Pressurization is bleed air from engines.

Maybe no wheels on amphib, just hover craft skirts.

Scott

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Bill Delcambre
Sent: Tuesday, November 18, 2003 9:39 AM
To: murphy-rebel@dcsol.com
Subject: Re: M14 Air uses


I doubt that there's enough air available to do the venturi thing. I

would

probably just use a regulator to drop the pressure to a usable level

and

run

the gyros with that airflow. I doubt if they know whether the flow

through

them is caused by a negative or positive pressure source. Probably

need a

good filtration system, though. All told, still less expensive and

more

reliable than a vacuum system. If the compressor failed (IMC), you'd

have

quite a while to get to VMC, just using the reservoir. Don't jets and
turboprops use pressure systems, as opposed to vacuum sytems? (this

is

really a question. I always assumed they didn't use vacuum pumps, but
rather bleed air pressurization)

Personally, I'm planning on some version of the solid state attitude
indicators. By the time I'm ready to get that stuff, I figure most of

the

bugs will be purged.

You amphib guys ever thought about an air/hydraulic system for your

gear?

No pump, wiring or reservoir. Just a cylinder with air on one side

and

oil

on the other. Or better yet; airbag actuation. No hydraulics at all.

We

could do air actuated flaps.

Gettin stupid, huh?

Bill
----- Original Message -----
From: "Scott & Leere' Aldrich" <flynski@mwutah.com>
To: <murphy-rebel@dcsol.com>
Sent: Monday, November 17, 2003 6:59 PM
Subject: M14 Air uses

air.

around

could

have

be

enough

*-------------------------------------------------------------------------*

*-------------------------------------------------------------------------*
*-------------------------------------------------------------------------*

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

*-------------------------------------------------------------------------*
*-------------------------------------------------------------------------*

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

*-------------------------------------------------------------------------*
*-------------------------------------------------------------------------*

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

*-------------------------------------------------------------------------*
*-------------------------------------------------------------------------*

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

*-------------------------------------------------------------------------*




*-------------------------------------------------------------------------*
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
*-------------------------------------------------------------------------*








-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

I'm aware of plumbers tape etc. and I've used a bit of some gooey compound on hydraulic line
fittings such as brake cylinders too, but on Jim Kimball's pictures of the air cylinder and related
parts, it looks like some kind of sealing compound is used there too. Any ideas of what compound
is typically used on a pneumatic fitting? Thanks.

Dave Stroud, Ottawa, Canada
Christavia Mk 1 C-FDWS
Fairchild 51, early construction


----- Original Message -----
From: "Bill Delcambre" <bdelcambre@cox-internet.com>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, November 18, 2003 4:42 PM
Subject: Re: M14 Air uses

Don't know much about Yaks. Bet George could shed some light. Close buddy
had a Nanchang and I can tell you that a BUNCH of stuff was pneumatic.
Starter, flaps, brakes, gear retract and maybe more. Interesting thing is
that he absolutely never had any trouble with any of the air systems. Those
things worked perfectly, every time. Any time I ask M14 guys their opinion
about electric starting, the reaction is the same; "why mess with the best
part of the engine!"

As for the hover craft skirts; I like the way you think! THIS is the
spirit of 'experimental aircraft'!

Bill

----- Original Message -----
From: "Scott & Leere' Aldrich" <flynski@mwutah.com>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, November 18, 2003 12:26 PM
Subject: RE: M14 Air uses

Doesn't the Yak uses air for a lot of things?

Your right no vacuum on the jets (oh, except the toilets on some..),

gyros

are all electric (and most are ring laser with no moving parts).
Pressurization is bleed air from engines.

Maybe no wheels on amphib, just hover craft skirts.

Scott

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Bill Delcambre
Sent: Tuesday, November 18, 2003 9:39 AM
To: murphy-rebel@dcsol.com
Subject: Re: M14 Air uses


I doubt that there's enough air available to do the venturi thing. I

would

probably just use a regulator to drop the pressure to a usable level and

run

the gyros with that airflow. I doubt if they know whether the flow

through

them is caused by a negative or positive pressure source. Probably need a
good filtration system, though. All told, still less expensive and more
reliable than a vacuum system. If the compressor failed (IMC), you'd have
quite a while to get to VMC, just using the reservoir. Don't jets and
turboprops use pressure systems, as opposed to vacuum sytems? (this is
really a question. I always assumed they didn't use vacuum pumps, but
rather bleed air pressurization)

Personally, I'm planning on some version of the solid state attitude
indicators. By the time I'm ready to get that stuff, I figure most of the
bugs will be purged.

You amphib guys ever thought about an air/hydraulic system for your gear?
No pump, wiring or reservoir. Just a cylinder with air on one side and

oil

on the other. Or better yet; airbag actuation. No hydraulics at all. We
could do air actuated flaps.

Gettin stupid, huh?

Bill
----- Original Message -----
From: "Scott & Leere' Aldrich" <flynski@mwutah.com>
To: <murphy-rebel@dcsol.com>
Sent: Monday, November 17, 2003 6:59 PM
Subject: M14 Air uses

Bill, you may have something there blowing up Otto Pilot with the air.
Could then throw him in the lake and use Wayne's new motor to putter

around

on. I'll have to think about that one as I keep thinking the air could

have

more uses...run a gyro?? Wonder if the flow from dump valve would be

enough

to run through a small venturi for suction??

Scott

*-------------------------------------------------------------------------*

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

*-------------------------------------------------------------------------*
*-------------------------------------------------------------------------*

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

*-------------------------------------------------------------------------*
*-------------------------------------------------------------------------*

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

*-------------------------------------------------------------------------*




*-------------------------------------------------------------------------*
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
*-------------------------------------------------------------------------*

*-------------------------------------------------------------------------*
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
*-------------------------------------------------------------------------*








-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

David, I use Loctite "PST 592" Pipe Sealant with Teflon on everything now. I
haven't had a leak on a fuel line in over 6 years with this stuff, nor a
leak on any threaded portion of a hydraulic fitting. Should work perfect on
Pneumatics as well.

Available from most auto jobbers (NAPA etc) in a small plastic tube.

Wayne

----- Original Message -----
From: "David Stroud" <davestroud@rogers.com>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, November 18, 2003 5:02 PM
Subject: Re: M14 Air uses and joints thereof

I'm aware of plumbers tape etc. and I've used a bit of some gooey compound

on hydraulic line

fittings such as brake cylinders too, but on Jim Kimball's pictures of the

air cylinder and related

parts, it looks like some kind of sealing compound is used there too. Any

ideas of what compound

is typically used on a pneumatic fitting? Thanks.

Dave Stroud, Ottawa, Canada
Christavia Mk 1 C-FDWS
Fairchild 51, early construction

*-------------------------------------------------------------------------*
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
*-------------------------------------------------------------------------*








-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------