The Murphy Builders Site

Posted: **Sun Feb 19, 2012 5:29 pm**

my mistake on previous message not aileron tip, should be

Posted: **Sun Feb 19, 2012 5:29 pm**

What type of undercarriage do you have, bungee, die spring, spring ?

I have almost complete parts for bungee gear, was mounted on mine then I
removed and switched to die spring, but still have a lot of the parts

Cheers

Mike#007

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Brian Bridgewater
Sent: September 3, 2009 10:18 AM
To: rebel-builders@dcsol.com
Subject: [rebel-builders] Bungie under carriage

Hello fellow Murphy maniac's I own Rebel No. 274R which I have recently
had a wrecked undercarriage so looking for spare parts to rebuild with,
also needed is port wing tipcowl and an aelron tip cowl can anyone help
me out please regards Brian (wocestershire England)

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Posted: **Sun Feb 19, 2012 5:29 pm**

Hi Mike it is the Bungee but don't mind upgrading understand there is a spring adaption for the bungee's but never seen it

Posted: **Sun Feb 19, 2012 5:29 pm**

Will make parts list and send to you tonight
Not looking for much money for the stuff, just don't want to throw it in garbage

cheers

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Brian Bridgewater
Sent: September 3, 2009 11:21 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Bungie under carriage

Hi Mike it is the Bungee but don't mind upgrading understand there is a spring adaption for the bungee's but never seen it

Posted: **Sun Feb 19, 2012 5:29 pm**

Posted: **Sun Feb 19, 2012 5:32 pm**

Hi Mike & Brian,

It's nice to see the parts exchange is alive, that's the same way I was able
to get parts the a/c I was working on. But just to beware, I believe the
MAM bungee gear did have a change in materials to accommodate the 1650 gross
Rebels.

I'm just noting the difference in serial numbers, 007 to 274.

Cheers,
Jeff

On Thu, Sep 3, 2009 at 8:33 AM, Brian Bridgewater <ecomind@ymail.com> wrote:

Thanks very much mike here's my E-Mail ecomind@ymail.com look forward to
hearing from you by the way where are Brian.

________________________________
From: "Jones, Michael" <Michael.Jones@snclavalin.com>
To: rebel-builders@dcsol.com
Sent: Thursday, 3 September, 2009 16:24:24
Subject: RE: [rebel-builders] Bungie under carriage

Will make parts list and send to you tonight
Not looking for much money for the stuff, just don't want to throw it in
garbage

cheers

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Brian Bridgewater
Sent: September 3, 2009 11:21 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Bungie under carriage

Hi Mike it is the Bungee but don't mind upgrading understand there is a
spring adaption for the bungee's but never seen it by the way it is 1650 lb
model " Im interested" Brian

________________________________
From: "Jones, Michael" <Michael.Jones@snclavalin.com>
To: rebel-builders@dcsol.com
Sent: Thursday, 3 September, 2009 15:58:48
Subject: RE: [rebel-builders] Bungie under carriage

What type of undercarriage do you have, bungee, die spring, spring ?

I have almost complete parts for bungee gear, was mounted on mine then I
removed and switched to die spring, but still have a lot of the parts

Cheers

Mike#007

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Brian Bridgewater
Sent: September 3, 2009 10:18 AM
To: rebel-builders@dcsol.com
Subject: [rebel-builders] Bungie under carriage

Hello fellow Murphy maniac's I own Rebel No. 274R which I have recently
had a wrecked undercarriage so looking for spare parts to rebuild with,
also needed is port wing tipcowl and an aelron tip cowl can anyone help
me out please regards Brian (wocestershire England)

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Posted: **Sun Feb 19, 2012 5:32 pm**

Brian, Michael,

I'd be interested too, as I'm building bungee gear with a few of the parts from
a damaged set (received when I sold/traded my cessna style gear). You got
there first tho Brian --- just between the two of you if there are parts left
you won't need.

BTW, I've taken a first look at building my replacement set out of 4130 steel
and it looks somewhat promising.

-Ben/ 496r

On 9/3/2009 7:33 AM, ecomind@ymail.com wrote to rebel-builders:

[quote]

Posted: **Sun Feb 19, 2012 5:32 pm**

Yep , the 1650 bungee was heavier stuff, this will be checked

cheers

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Jeff Micheal
Sent: September 3, 2009 2:42 PM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Bungie under carriage

Hi Mike & Brian,

It's nice to see the parts exchange is alive, that's the same way I was
able
to get parts the a/c I was working on. But just to beware, I believe
the
MAM bungee gear did have a change in materials to accommodate the 1650
gross
Rebels.

I'm just noting the difference in serial numbers, 007 to 274.

Cheers,
Jeff

On Thu, Sep 3, 2009 at 8:33 AM, Brian Bridgewater <ecomind@ymail.com>
wrote:

Thanks very much mike here's my E-Mail ecomind@ymail.com look

forward to

hearing from you by the way where are Brian.

________________________________
From: "Jones, Michael" <Michael.Jones@snclavalin.com>
To: rebel-builders@dcsol.com
Sent: Thursday, 3 September, 2009 16:24:24
Subject: RE: [rebel-builders] Bungie under carriage

Will make parts list and send to you tonight
Not looking for much money for the stuff, just don't want to throw it

in

garbage

cheers

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Brian Bridgewater
Sent: September 3, 2009 11:21 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Bungie under carriage

Hi Mike it is the Bungee but don't mind upgrading understand there is

a

spring adaption for the bungee's but never seen it by the way it is

1650 lb

model " Im interested" Brian

________________________________
From: "Jones, Michael" <Michael.Jones@snclavalin.com>
To: rebel-builders@dcsol.com
Sent: Thursday, 3 September, 2009 15:58:48
Subject: RE: [rebel-builders] Bungie under carriage

What type of undercarriage do you have, bungee, die spring, spring ?

I have almost complete parts for bungee gear, was mounted on mine then

I

removed and switched to die spring, but still have a lot of the parts

Cheers

Mike#007

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Brian Bridgewater
Sent: September 3, 2009 10:18 AM
To: rebel-builders@dcsol.com
Subject: [rebel-builders] Bungie under carriage

Hello fellow Murphy maniac's I own Rebel No. 274R which I have

recently

had a wrecked undercarriage so looking for spare parts to rebuild

with,

also needed is port wing tipcowl and an aelron tip cowl can anyone

help

me out please regards Brian (wocestershire England)

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Posted: **Sun Feb 19, 2012 5:32 pm**

I have 2 complete slider tube struts for bungie gear for 1650 lb.
gross. Including p/n LG 37, 4, 5, 6-2, 35, 36, & 40.
Each strut has a small tag on it, that I think says LG 4B, I am
guessing that is the p/n for the complete assembly. Don't know
what there worth?
Also have a set of 4130 main gear legs, and compression struts
with the machined aluminum fittings, they are set up for 3/4"
axel. However the welding would require some reworking.
Keith Pierson kp12793@aol.com

On 9/3/2009 11:25 AM, bransom wrote to rebel-builders:

-> Brian, Michael,
->
-> I'd be interested too, as I'm building bungee gear with a few of the parts
from
-> a damaged set (received when I sold/traded my cessna style gear). You
got
-> there first tho Brian --- just between the two of you if there are parts left
-> you won't need.
->
-> BTW, I've taken a first look at building my replacement set out of 4130
steel
-> and it looks somewhat promising.
->
-> -Ben/ 496r
->
-> On 9/3/2009 7:33 AM, ecomind@ymail.com wrote to rebel-builders:
->
-> >

Posted: **Sun Feb 19, 2012 5:32 pm**

My bungee gear parts are for the lighter 1350 rebel, if any one wants it let me know

cheers

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Jones, Michael
Sent: September 3, 2009 11:24 AM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] Bungie under carriage

Will make parts list and send to you tonight
Not looking for much money for the stuff, just don't want to throw it in garbage

cheers

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Brian Bridgewater
Sent: September 3, 2009 11:21 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Bungie under carriage

Hi Mike it is the Bungee but don't mind upgrading understand there is a spring adaption for the bungee's but never seen it

Posted: **Sun Feb 19, 2012 5:32 pm**

Hello Keith I could be interested in those struts of yours are they made up or still

Posted: **Sun Feb 19, 2012 5:32 pm**

In looking over the damaged bungee gear I have, it looks like the drag
strut buckled right at midway where the holes are for the fairing piece
that attaches there. Granted this particular gear set hit an abnormal load
(snow bank at the end of an ice landing), but it does make me think the
holes at the middle point of the drag strut are not the best idea. Any
other thoughts on this?

Although I can't swear to the damage sequence, it appears that the main
gear legs crumpled backward following the failed drag strut. This ended up
particularly bad in terms of repair (of the other airplane) because it tore
off the fuselage lugs of the cage carry through gusset (Fus-2).

I'm back to thinking I'll probably use aluminum and pretty standard stuff
for all of my gear rework, with the exception of using a 4130 drag strut
(.050 wall thickness) and no holes in anything mid-span. As mentioned, I'd
be interested in anyone's thoughts on bungee gear strengths and weaknesses.

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Posted: **Sun Feb 19, 2012 5:32 pm**

At 09:37 PM 09/09/2009 -0800, you wrote:

In looking over the damaged bungee gear I have, it looks like the drag
strut buckled right at midway where the holes are for the fairing piece
that attaches there. Granted this particular gear set hit an abnormal load
(snow bank at the end of an ice landing), but it does make me think the
holes at the middle point of the drag strut are not the best idea. Any
other thoughts on this?

Although I can't swear to the damage sequence, it appears that the main
gear legs crumpled backward following the failed drag strut. This ended up
particularly bad in terms of repair (of the other airplane) because it tore
off the fuselage lugs of the cage carry through gusset (Fus-2).

I'm back to thinking I'll probably use aluminum and pretty standard stuff
for all of my gear rework, with the exception of using a 4130 drag strut
(.050 wall thickness) and no holes in anything mid-span. As mentioned, I'd
be interested in anyone's thoughts on bungee gear strengths and weaknesses.

I'm not an engineer these are just ideas. It would seem to me that as the
main gear leg bent back it would push the fairing piece back causing the
drag strut to bend at the attach point. I think the weak point on the rear
strut is the unsupported bend at the top. If the gear hadn't failed when it
hit the snowbank the plane would have ended up on it's back. If you weld it
would probably be easier to make an all steel gear.
Drew

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Posted: **Sun Feb 19, 2012 5:32 pm**

Interesting points Drew.
When I read the post I was reminded of a previous warning not to drill any
holes in the gear struts for fairing mounting due to weakening issues.
That said, my fairings are drilled and riveted into my gear legs. I've
wondered about rebuilding them to correct this, but...... on the amphibs
since 05 so no rush.
Were you up in Muskoka over the weekend? We spent the whole weekend flying
around visiting friends, and doing Henry's, put 3 fillups through the 0-320.

----- Original Message -----
From: "Drew Dalgleish" <drewjan@cabletv.on.ca>
To: <rebel-builders@dcsol.com>
Sent: Thursday, September 10, 2009 8:15 AM
Subject: RE: [rebel-builders] Bungie under carriage

At 09:37 PM 09/09/2009 -0800, you wrote:
In looking over the damaged bungee gear I have, it looks like the drag
strut buckled right at midway where the holes are for the fairing piece
that attaches there. Granted this particular gear set hit an abnormal
load
(snow bank at the end of an ice landing), but it does make me think the
holes at the middle point of the drag strut are not the best idea. Any
other thoughts on this?

Although I can't swear to the damage sequence, it appears that the main
gear legs crumpled backward following the failed drag strut. This ended
up
particularly bad in terms of repair (of the other airplane) because it
tore
off the fuselage lugs of the cage carry through gusset (Fus-2).

I'm back to thinking I'll probably use aluminum and pretty standard stuff
for all of my gear rework, with the exception of using a 4130 drag strut
(.050 wall thickness) and no holes in anything mid-span. As mentioned, I'd
be interested in anyone's thoughts on bungee gear strengths and
weaknesses.
I'm not an engineer these are just ideas. It would seem to me that as the
main gear leg bent back it would push the fairing piece back causing the
drag strut to bend at the attach point. I think the weak point on the rear
strut is the unsupported bend at the top. If the gear hadn't failed when
it
hit the snowbank the plane would have ended up on it's back. If you weld
it
would probably be easier to make an all steel gear.
Drew

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