The Murphy Builders Site

If I can find the doubler for the rear spar I am ready to finish up my first wing. Can anyone tell me how long it is? I think it is the same shape as the W-502 I believe only longer.
Also, is it worth flush riveting the leading edge? With all the stringers in the leading edge it seems I'd like to. Do I flush everything in the leading edge; both stringers and ribs? Do I counter sink or dimple; only skin or both skin and underlying ribs and/or stringers?
Sorry I'm so lame....but I am having great fun!
Jim SN179 SR
Ps. I still haven't decided on an engine........

Hi Jim

I can't comment on the doubler but as far as flushing goes my feeling is that we are building a work horse not a race car. Yes no doubt you may pick up a few miles an hour but I understand this takes alot of time.

Good Luck
Murray Cherkas
REBEL 505

I dimpled the skin and countersunk the stringers. I also did this on the
entire wing. I have been told you can countersink the skin, but it looked
mighty thin to me.

I don't recall on your other question.

Rick Muller
SN SR70

-----Original Message-----
From: goody [SMTP:goody@sover.net]
Sent: Wednesday, May 29, 2002 7:46 PM
To: murphy-rebel@dcsol.com
Subject: leading edge

<< File: ATT00000.htm >> If I can find the doubler for the rear spar I am
ready to finish up my first wing. Can anyone tell me how long it is? I
think it is the same shape as the W-502 I believe only longer.
Also, is it worth flush riveting the leading edge? With all the stringers
in the leading edge it seems I'd like to. Do I flush everything in the
leading edge; both stringers and ribs? Do I counter sink or dimple; only
skin or both skin and underlying ribs and/or stringers?
Sorry I'm so lame....but I am having great fun!
Jim SN179 SR
Ps. I still haven't decided on an engine........


*** File "WINMAIL.DAT" has been uudecoded and attached to this message.




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It does take some time, but I have flush riveted the entire SR and I'll bet
it has added less than 200 hours.

Rick Muller
SR 70

-----Original Message-----
From: Murray & Carol [SMTP:cherkas@shaw.ca]
Sent: Wednesday, May 29, 2002 9:14 PM
To: murphy-rebel@dcsol.com
Subject: Re: leading edge

<< File: ATT00002.htm >> Hi Jim

I can't comment on the doubler but as far as flushing goes my feeling is
that we are building a work horse not a race car. Yes no doubt you may pick
up a few miles an hour but I understand this takes alot of time.

Good Luck
Murray Cherkas
REBEL 505


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Hi Jim !

Flush rivetting the leading edge ??? The factory tried it
on a Super Rebel - turned out to be a couple of mph SLOWER !!
Maybe the rivets act as vortex generators and actually enhance the
air flow on this particular airfoil ..... ;-)

Just MHO - save yourself a LOT of work, use the standard rivets,
and just GET IT FLYING !!! ;-)

.....bobp

PS
According to the guys who soup up Globe Swifts, flush rivetting
makes diddly difference until you're over 300 mph !!! :-)

---------------------------------------orig.---------------------------
At 09:45 PM 5/29/02 -0400, you wrote:

If I can find the doubler for the rear spar I am ready to finish up my

first wing. Can anyone tell me how long it is? I think it is the same
shape as the W-502 I believe only longer.

Also, is it worth flush riveting the leading edge? With all the stringers

in the leading edge it seems I'd like to. Do I flush everything in the
leading edge; both stringers and ribs? Do I counter sink or dimple; only
skin or both skin and underlying ribs and/or stringers?

Sorry I'm so lame....but I am having great fun!
Jim SN179 SR
Ps. I still haven't decided on an engine........
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<DIV><FONT face=Arial size=2>If I can find the doubler for the rear spar I am
ready to finish up my first wing.&nbsp; Can anyone tell me how long it

is?&nbsp;

I think it is the same shape as the W-502 I believe only longer.</FONT></DIV>
<DIV><FONT face=Arial size=2>Also, is it worth flush riveting the leading
edge?&nbsp; With all the stringers in the leading edge it seems I'd like
to.&nbsp; Do I flush everything in the leading edge; both stringers and
ribs?&nbsp; Do I counter sink or dimple; only skin or both skin and underlying
ribs and/or stringers?</FONT></DIV>
<DIV><FONT face=Arial size=2>Sorry I'm so lame....but I am having great
fun!</FONT></DIV>
<DIV><FONT face=Arial size=2>Jim SN179 SR</FONT></DIV>
<DIV><FONT face=Arial size=2>Ps. I still haven't decided on an
engine........</FONT></DIV></BODY></HTML>

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