The Murphy Builders Site

Posted: **Sat Feb 18, 2012 2:18 pm**

Hi All
I have decided to change my dors to gull wing . I know nothing about gas
struts . Does anyone know how strong a strut is required?
Dale 220 R

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Posted: **Sat Feb 18, 2012 2:18 pm**

hi dale

you need a surprising amount of force to lift the doors so they need to be
made light
I used 2 gas struts on each door, each strut has 15 lbs, if you use one
strut you need at least a 30 lbs strut
also the strut location when mounted is critical for proper function
also the strut should be mounted with body side up, it makes difference
according to manufacturer
suppliers are not that easy to find, also finding the force of the strut can
be problem usnless it is marked on the strut or you take it home and measure
it

mike#007

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Dale Kilbey
Sent: Tuesday, November 08, 2005 11:24 AM
To: rebel-builders@dcsol.com
Subject: Gas struts

Hi All
I have decided to change my dors to gull wing . I know nothing about gas
struts . Does anyone know how strong a strut is required?
Dale 220 R

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Posted: **Sat Feb 18, 2012 2:18 pm**

On my Moose the doors use a 90 PSI strut. The door is probably a lot heavier
than a standard Moose or a Rebel door though. We upped the skin thickness
and have an interior on the door.

We bought all our door hardware from http://www.austinhardware.com/

I know of a Moose that has well over $3000 in just door and window hardware
(all certified stuff for Beavers). We have essentially the same set up for
well under $100.

FWIW
Scott
Moose 174

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Dale
Kilbey
Sent: Tuesday, November 08, 2005 9:24 AM
To: rebel-builders@dcsol.com
Subject: Gas struts

Hi All
I have decided to change my dors to gull wing . I know nothing about gas
struts . Does anyone know how strong a strut is required?
Dale 220 R

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Posted: **Sat Feb 18, 2012 2:18 pm**

Dale, you've probably been looking at others but it is a good idea to mount
the gas spring (or springs) so that they go over center as the door closes
then the piston holds the door closed. We only used one on the forward side
on the Moose because passengers would want to use the aft one as a grab
handle) http://www.goflyamoose.com/doors.htm

Scott

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Scott
Aldrich
Sent: Tuesday, November 08, 2005 9:56 AM
To: rebel-builders@dcsol.com
Subject: RE: Gas struts

On my Moose the doors use a 90 PSI strut. The door is probably a lot heavier
than a standard Moose or a Rebel door though. We upped the skin thickness
and have an interior on the door.

We bought all our door hardware from http://www.austinhardware.com/

I know of a Moose that has well over $3000 in just door and window hardware
(all certified stuff for Beavers). We have essentially the same set up for
well under $100.

FWIW
Scott
Moose 174

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Dale
Kilbey
Sent: Tuesday, November 08, 2005 9:24 AM
To: rebel-builders@dcsol.com
Subject: Gas struts

Hi All
I have decided to change my dors to gull wing . I know nothing about gas
struts . Does anyone know how strong a strut is required?
Dale 220 R

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Posted: **Sat Feb 18, 2012 2:18 pm**

I found Napa to have gas struts in there big catalog. There is a whole page on them with lengths, pounds, etc. I am starting out with a single 20 pound for my gull wing windows, I had to start somewhere. The door will still be conventional hinged.
Mike Betti
771E

On Tue, 8 Nov 2005 11:23:51 -0500, rebel-builders@dcsol.com said:

Hi All
I have decided to change my dors to gull wing . I know nothing about gas
struts . Does anyone know how strong a strut is required?
Dale 220 R

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Posted: **Sat Feb 18, 2012 2:18 pm**

mike

when i did my gull wing doors i had engineer at company i used do
calculations with special program they use to show the opening and closing
positions, mounting points, forces in hot & cold weather and for rebel door
they calculated for single strut 30 lbs was needed, you can try 20 but i bet
you will need 30 lbs

also the mounting points are critical, dont recall now but could look them
up for you, of course if you have different length strut then me your
mounting points will be different

mike#007

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
mbetti@up.net
Sent: Tuesday, November 08, 2005 3:54 PM
To: rebel-builders@dcsol.com
Subject: Re: Gas struts

I found Napa to have gas struts in there big catalog. There is a whole page
on them with lengths, pounds, etc. I am starting out with a single 20 pound
for my gull wing windows, I had to start somewhere. The door will still be
conventional hinged.
Mike Betti
771E

On Tue, 8 Nov 2005 11:23:51 -0500, rebel-builders@dcsol.com said:

Hi All
I have decided to change my dors to gull wing . I know nothing about gas
struts . Does anyone know how strong a strut is required?
Dale 220 R

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Posted: **Sat Feb 18, 2012 2:18 pm**

Thanks,
It's just the window hooked to the strut and it doesn't have to open the window, just hold it open. I'll have the test strut in a couple days and see what happens, got to start somewhere.
Mike Betti

On Wed, 9 Nov 2005 07:19:22 -0500 , rebel-builders@dcsol.com said:

mike

when i did my gull wing doors i had engineer at company i used do
calculations with special program they use to show the opening and closing
positions, mounting points, forces in hot & cold weather and for rebel door
they calculated for single strut 30 lbs was needed, you can try 20 but i bet
you will need 30 lbs

also the mounting points are critical, dont recall now but could look them
up for you, of course if you have different length strut then me your
mounting points will be different

mike#007

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
mbetti@up.net
Sent: Tuesday, November 08, 2005 3:54 PM
To: rebel-builders@dcsol.com
Subject: Re: Gas struts

I found Napa to have gas struts in there big catalog. There is a whole page
on them with lengths, pounds, etc. I am starting out with a single 20 pound
for my gull wing windows, I had to start somewhere. The door will still be
conventional hinged.
Mike Betti
771E

On Tue, 8 Nov 2005 11:23:51 -0500, rebel-builders@dcsol.com said:
Hi All
I have decided to change my dors to gull wing . I know nothing about gas
struts . Does anyone know how strong a strut is required?
Dale 220 R

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Posted: **Sat Feb 18, 2012 2:18 pm**

Hi Mike
I would appreciate that. at least I wiil know if I'm on the right track
Dale 220R
----- Original Message -----
From: "Jones, Michael" <Michael.Jones@snclavalin.com>
To: <rebel-builders@dcsol.com>
Sent: Wednesday, November 09, 2005 7:19 AM
Subject: RE: Gas struts

mike

when i did my gull wing doors i had engineer at company i used do
calculations with special program they use to show the opening and closing
positions, mounting points, forces in hot & cold weather and for rebel
door
they calculated for single strut 30 lbs was needed, you can try 20 but i
bet
you will need 30 lbs

also the mounting points are critical, dont recall now but could look them
up for you, of course if you have different length strut then me your
mounting points will be different

mike#007

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
mbetti@up.net
Sent: Tuesday, November 08, 2005 3:54 PM
To: rebel-builders@dcsol.com
Subject: Re: Gas struts

I found Napa to have gas struts in there big catalog. There is a whole
page
on them with lengths, pounds, etc. I am starting out with a single 20
pound
for my gull wing windows, I had to start somewhere. The door will still be
conventional hinged.
Mike Betti
771E

On Tue, 8 Nov 2005 11:23:51 -0500, rebel-builders@dcsol.com said:
Hi All
I have decided to change my dors to gull wing . I know nothing about gas
struts . Does anyone know how strong a strut is required?
Dale 220 R

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Posted: **Sat Feb 18, 2012 2:18 pm**

also look on builders web site, might be pdf posted with dimensions

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Dale Kilbey
Sent: Wednesday, November 09, 2005 10:28 AM
To: rebel-builders@dcsol.com
Subject: Re: Gas struts

Hi Mike
I would appreciate that. at least I wiil know if I'm on the right track
Dale 220R
----- Original Message -----
From: "Jones, Michael" <Michael.Jones@snclavalin.com>
To: <rebel-builders@dcsol.com>
Sent: Wednesday, November 09, 2005 7:19 AM
Subject: RE: Gas struts

mike

when i did my gull wing doors i had engineer at company i used do
calculations with special program they use to show the opening and closing
positions, mounting points, forces in hot & cold weather and for rebel
door
they calculated for single strut 30 lbs was needed, you can try 20 but i
bet
you will need 30 lbs

also the mounting points are critical, dont recall now but could look them
up for you, of course if you have different length strut then me your
mounting points will be different

mike#007

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
mbetti@up.net
Sent: Tuesday, November 08, 2005 3:54 PM
To: rebel-builders@dcsol.com
Subject: Re: Gas struts

I found Napa to have gas struts in there big catalog. There is a whole
page
on them with lengths, pounds, etc. I am starting out with a single 20
pound
for my gull wing windows, I had to start somewhere. The door will still be
conventional hinged.
Mike Betti
771E

On Tue, 8 Nov 2005 11:23:51 -0500, rebel-builders@dcsol.com said:
Hi All
I have decided to change my dors to gull wing . I know nothing about gas
struts . Does anyone know how strong a strut is required?
Dale 220 R

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Posted: **Sat Feb 18, 2012 2:18 pm**

Thanks Scott and Mike. Also I found another source
http://www.lstechnologies.ca
I should be able to workk it out now.
Dale 220R

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