The Murphy Builders Site

Hi Ted

The MAM statement.......

"Some confusion has come about as to how the front spar attach works on all
our high wings.
On the Maverick, Rebel/Elite and 2500, the rear spar fittings are bolted
tight, and this sets the exact position of the wing front spar fittings in
the cage top carry through. Delrin spacers are then made up to insert front
and back, so this assembly can be bolted tight.
HOWEVER- on the 3500, the wing rear spar attach brackets FLOAT inside the
fuselage rear spar attach brackets, and are only nipped up with the AN6
bolt. With the wing rear spar attach fittings centered as close as possible
inside the fuselage fittings, the front spar attach fittings will find
their
position, and the space fore and aft is filled with ALUMINUM spacers, part
number FL-265. 6 are required per aircraft. If 3500 builders do not have
these, please contact shipping."

I assume this means for a 3500 you nip up the rear fitting somehow rather
than bolt it tight !

On my Elite the rear fitting is snug - no room for play fore or aft so a
tight bolt makes sense.

Maybe on the 3500 it has room to move a bit fore and aft ? - not sure -
never seen one

Nig
745E

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Ted
Waltman
Sent: 16 January 2012 18:01
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] Clarification please on Moose wing rear spar
attach bolts

Thanks Nigel & Jeff...

Just doesn't make sense to my thick head <g>. If the front spar fitting is
bolted tight, then the rear spar can't move, or "float" fore-and-aft
between
the FUS-706 fittings. So why not, after fitting the wing per below, and
then tightening up the front spar fitting--then tighten up the rear fitting
(using washers)?

Thank you again,

Ted

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
N.Smith
Sent: Monday, January 16, 2012 10:49 AM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] Clarification please on Moose wing rear spar
attach bolts

Hi Ted

From a post I printed out a few years ago (dated 20 march 2003 Re: fitting
the wing)


Nig
745E

----------------------------------

Mike, the note below is in the Moose Fast build section. I'm not exactly
sure how tight "nipped up" is for the 3500 rear fitting, but it looks like
the 2500 can be "tight".


"Some confusion has come about as to how the front spar attach works on all
our high wings.
On the Maverick, Rebel/Elite and 2500, the rear spar fittings are bolted
tight, and this sets the exact position of the wing front spar fittings in
the cage top carry through. Delrin spacers are then made up to insert front
and back, so this assembly can be bolted tight.
HOWEVER- on the 3500, the wing rear spar attach brackets FLOAT inside the
fuselage rear spar attach brackets, and are only nipped up with the AN6
bolt. With the wing rear spar attach fittings centered as close as possible
inside the fuselage fittings, the front spar attach fittings will find
their
position, and the space fore and aft is filled with ALUMINUM spacers, part
number FL-265. 6 are required per aircraft. If 3500 builders do not have
these, please contact shipping."


Scott A


-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of Mike
Kimball
Sent: Wednesday, March 19, 2003 11:13 PM
To: murphy-rebel@dcsol.com
Subject: Fitting the wing


Well, I slid my wing up to the fuselage for the first time and got a shock.
With the front wing fitting hard against the front of the fuselage fitting
there was no way the rear fitting was going to make it.
It looked like the wing fittings were farther apart than the fuselage
fittings. &%#$ how did I screw that up? Taking a look at the problem it
looked like if I moved the front doubler from the inside of the square tube
to the outside like the moose builders have to do it would give me enough
room and it did. But the front wing fitting is hard against the front of
the fuselage fitting to get the rear fitting pinned. I can't remember the
differences between the Moose and Super Rebel about one fitting "floating"
and the other bolted down hard with spacers or whatever. If I put a spacer
on the back of the front wing fitting to fill the gap with the front wing
fitting hard against the front fuselage fitting and the rear fitting bolted
down (won't need any spacers, it's a good fit) is this acceptable? Any
opinions? Thanks in advance guys.

Mike Kimball
SR#044



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

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Ted
Waltman
Sent: 16 January 2012 17:30
To: murtech@murphyair.com
Cc: Kits@pattersonaerosales.com; rebel-builders@dcsol.com
Subject: [rebel-builders] Clarification please on Moose wing rear spar
attach bolts

Hello,



The 3500 upgrade manual says, "Please note the rear spar fittings are not
bolted up tight when fitting the wings. The wing fittings "float" inside
the fuselage fittings."



I assume--please clarify--this means one does not put any washers between
the FUS-706 steel fittings to sandwich the wing rear spar fittings (FUS-713
& 714...also steel).



I've seen folks mount the rear spar with just a bolt (i.e. space either
side
of FUS-713/714 to FUS-706) and seen other folks put enough washers in
between each side of the FUS-713/714 fittings so there is no space
whatsoever.



What is correct per the aircraft design/engineering Darryl?



Thank you,



Ted Waltman





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