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M14 Air uses and joints thereof

Converted from Wildcat! database. (read only)
Locked
Bill Delcambre

M14 Air uses and joints thereof

Post by Bill Delcambre » Sat Feb 18, 2012 12:01 am

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
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David Stroud

M14 Air uses and joints thereof

Post by David Stroud » Sat Feb 18, 2012 12:01 am

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



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Wayne G. O'Shea

M14 Air uses and joints thereof

Post by Wayne G. O'Shea » Sat Feb 18, 2012 12:01 am

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



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Locked