The Murphy Builders Site

Is the std MAM door latch the way to go or are there better options? With

Thanks,
Mike Betti
771E

At 09:29 AM 11/8/2005 -0500, you wrote:

Is the std MAM door latch the way to go or are there better

options? With
the MAM setup it looks like you just pull the cable running along
the door
to open it?

Thanks,
Mike Betti
771E

The MAM doorlatch is light and simple it works well the same
system as my
57 MGA had. You're right to open it you pull on the cable no double
jointedness required. To get a perfect fit wait until after you
hang your
engine the fuselage will spring slightly messiing up all your
carefull work.
Drew





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Mike:

There seem to be more ways to handle the doors than there are builders. I
built mine standard, but used stronger hinge material for the lower door
(closed loops as opposed to bent over ones at the hinge). On the latch,

Murphy one actually works very well, but it has a couple of drawbacks.

cannot open a closed door from outside. So if you have a floatplane and
turn it at the dock, you have to remember to open the opposite door before
you turn the airplane. Also, when it comes to final inspection, the
inspector will want to see a way of opening the doors from the outside in

emergency. This can be taken care of by providing a removable pin on the
hinge, with a placard. There doesn't appear to be any real easy way of
modifyingthe standard door so it is openable from the outside, though I
imagine a way could be devised to operate both top and side latching
mechanisms, yet have them lockable when you leave the airplane.

Al





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From: "Alan Hepburn" <ahepburn@renc.igs.net>
Reply-To: <rebel-builders@dcsol.com>
To: <rebel-builders@dcsol.com>
Subject: Re: Door latches
Date: Wed, 9 Nov 2005 07:36:09 -0500

Mike:

There seem to be more ways to handle the doors than there are builders. I
built mine standard, but used stronger hinge material for the lower door
(closed loops as opposed to bent over ones at the hinge). On the latch,
the
Murphy one actually works very well, but it has a couple of drawbacks. You
cannot open a closed door from outside. So if you have a floatplane and
turn it at the dock, you have to remember to open the opposite door before
you turn the airplane. Also, when it comes to final inspection, the
inspector will want to see a way of opening the doors from the outside in
an
emergency. This can be taken care of by providing a removable pin on the
hinge, with a placard. There doesn't appear to be any real easy way of
modifyingthe standard door so it is openable from the outside, though I
imagine a way could be devised to operate both top and side latching
mechanisms, yet have them lockable when you leave the airplane.

Al





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Can someone (in Canada) show me something in writting that states the
aircraft has to be accessable from the outside in case of emergency? Maybe
I'm out of touch with regulations but just about every Cessna 172 and up

not accessable from the outside and they are still making and importing

new ones configured the same way. Once the door latch is dropped, that's

unless in the panic the pilot opens the door before impact. Maybe I'm

but I understood this grew from some designated inspector's brain fart of

idea thrusted upon the homebuild world.

Steve W.
Rebel 637

From: "Alan Hepburn" <ahepburn@renc.igs.net>
Reply-To: <rebel-builders@dcsol.com>
To: <rebel-builders@dcsol.com>
Subject: Re: Door latches
Date: Wed, 9 Nov 2005 07:36:09 -0500

Mike:

There seem to be more ways to handle the doors than there are builders.

built mine standard, but used stronger hinge material for the lower door
(closed loops as opposed to bent over ones at the hinge). On the latch,
the
Murphy one actually works very well, but it has a couple of drawbacks.

cannot open a closed door from outside. So if you have a floatplane and
turn it at the dock, you have to remember to open the opposite door

you turn the airplane. Also, when it comes to final inspection, the
inspector will want to see a way of opening the doors from the outside in
an
emergency. This can be taken care of by providing a removable pin on the
hinge, with a placard. There doesn't appear to be any real easy way of
modifyingthe standard door so it is openable from the outside, though I
imagine a way could be devised to operate both top and side latching
mechanisms, yet have them lockable when you leave the airplane.

Al





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I'm getting confused due to the lack of reference to what type of plane is
being discussed. Now I believe this thread has to do with the Rebel.
Earlier posts on this subject talked about the "pull the cable" method of
releasing the spring catch. It sounds like at least that much is similar
between the Rebel and Super Rebel. If the Rebel doesn't have an outside
latch then perhaps a review of the Super Rebel design will provide the
answer. It's a very simple mechanism and I wouldn't be surprised if it
would work for a Rebel. I can scan in the relevant pages of the manual
and
upload them to the archives or email separately if anyone wants to see how
it's done on the Super Rebel.

Mike Kimball

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Alan
Hepburn
Sent: Wednesday, November 09, 2005 3:36 AM
To: rebel-builders@dcsol.com
Subject: Re: Door latches

Mike:

There seem to be more ways to handle the doors than there are builders. I
built mine standard, but used stronger hinge material for the lower door
(closed loops as opposed to bent over ones at the hinge). On the latch,
the
Murphy one actually works very well, but it has a couple of drawbacks.
You
cannot open a closed door from outside. So if you have a floatplane and
turn it at the dock, you have to remember to open the opposite door before
you turn the airplane. Also, when it comes to final inspection, the
inspector will want to see a way of opening the doors from the outside in
an
emergency. This can be taken care of by providing a removable pin on the
hinge, with a placard. There doesn't appear to be any real easy way of
modifyingthe standard door so it is openable from the outside, though I
imagine a way could be devised to operate both top and side latching
mechanisms, yet have them lockable when you leave the airplane.

Al





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Cessna hinges have a pin that is pullable. We take the door off a guys
C182
for each young eagles day and he keeps the door locked! It's how we get in
to move his airplane twice a year.

Don't know where it's located in the regs (or if it even is) but was a
main
item with the inspection system back in 1995. All hinge pins had to have
extra on them to form a loop or 90* bend at the top for pulling. Has to be
labelled in case of emergency pull pin to remove door. I was even asked to
remove the work rescue as "some dumb farm boy" may not know what that
means.

...and I forgot to take the picture of the protruding pin for the window
latch.

Wayne

----- Original Message -----
From: "steve whitenect" <srwhitenect@hotmail.com>
To: <rebel-builders@dcsol.com>
Sent: Wednesday, November 09, 2005 2:56 PM
Subject: Re: Door latches

Can someone (in Canada) show me something in writting that states the
aircraft has to be accessable from the outside in case of emergency?
Maybe
I'm out of touch with regulations but just about every Cessna 172 and up

are

not accessable from the outside and they are still making and importing

the

new ones configured the same way. Once the door latch is dropped, that's

it

unless in the panic the pilot opens the door before impact. Maybe I'm

wrong

but I understood this grew from some designated inspector's brain fart of

an

idea thrusted upon the homebuild world.

Steve W.
Rebel 637

From: "Alan Hepburn" <ahepburn@renc.igs.net>
Reply-To: <rebel-builders@dcsol.com>
To: <rebel-builders@dcsol.com>
Subject: Re: Door latches
Date: Wed, 9 Nov 2005 07:36:09 -0500

Mike:

There seem to be more ways to handle the doors than there are builders.

I

built mine standard, but used stronger hinge material for the lower door
(closed loops as opposed to bent over ones at the hinge). On the latch,
the
Murphy one actually works very well, but it has a couple of drawbacks.

You

cannot open a closed door from outside. So if you have a floatplane and
turn it at the dock, you have to remember to open the opposite door

before

you turn the airplane. Also, when it comes to final inspection, the
inspector will want to see a way of opening the doors from the outside
in
an
emergency. This can be taken care of by providing a removable pin on
the
hinge, with a placard. There doesn't appear to be any real easy way of
modifyingthe standard door so it is openable from the outside, though I
imagine a way could be devised to operate both top and side latching
mechanisms, yet have them lockable when you leave the airplane.

Al





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__________ NOD32 1.1282 (20051109) Information __________

This message was checked by NOD32 antivirus system.
http://www.eset.com

Cessna hinges have a pin that is pullable. We take the door off a guys
C182
for each young eagles day and he keeps the door locked! It's how we get in
to move his airplane twice a year.

Don't know where it's located in the regs (or if it even is) but was a
main
item with the inspection system back in 1995. All hinge pins had to have
extra on them to form a loop or 90* bend at the top for pulling. Has to be
labelled in case of emergency pull pin to remove door. I was even asked to
remove the work rescue as "some dumb farm boy" may not know what that
means.

...and I forgot to take the picture of the protruding pin for the window
latch.

Wayne

----- Original Message -----
From: "steve whitenect" <srwhitenect@hotmail.com>
To: <rebel-builders@dcsol.com>
Sent: Wednesday, November 09, 2005 2:56 PM
Subject: Re: Door latches

Can someone (in Canada) show me something in writting that states the
aircraft has to be accessable from the outside in case of emergency?
Maybe
I'm out of touch with regulations but just about every Cessna 172 and up

are

not accessable from the outside and they are still making and importing

the

new ones configured the same way. Once the door latch is dropped, that's

it

unless in the panic the pilot opens the door before impact. Maybe I'm

wrong

but I understood this grew from some designated inspector's brain fart of

an

idea thrusted upon the homebuild world.

Steve W.
Rebel 637

From: "Alan Hepburn" <ahepburn@renc.igs.net>
Reply-To: <rebel-builders@dcsol.com>
To: <rebel-builders@dcsol.com>
Subject: Re: Door latches
Date: Wed, 9 Nov 2005 07:36:09 -0500

Mike:

There seem to be more ways to handle the doors than there are builders.

I

built mine standard, but used stronger hinge material for the lower door
(closed loops as opposed to bent over ones at the hinge). On the latch,
the
Murphy one actually works very well, but it has a couple of drawbacks.

You

cannot open a closed door from outside. So if you have a floatplane and
turn it at the dock, you have to remember to open the opposite door

before

you turn the airplane. Also, when it comes to final inspection, the
inspector will want to see a way of opening the doors from the outside
in
an
emergency. This can be taken care of by providing a removable pin on
the
hinge, with a placard. There doesn't appear to be any real easy way of
modifyingthe standard door so it is openable from the outside, though I
imagine a way could be devised to operate both top and side latching
mechanisms, yet have them lockable when you leave the airplane.

Al





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Hello Mike
Can you please give the manuf., or a supplier of the SS door latches that
you
used. do you know if they are the same ones that Ron Kakeldey used?
Thanks
Herb Williamson