Just put saw horses under your wings like you did when you rigged it initia
lly. It works.
I just can=92t figure out how I can twist around in my cockpit without unst
rapping to check it in flight! That would be a heck of an accident report.
Bud
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________________________________
From: owner-europa-list-server@matronics.com <owner-europa-list-server@matr
onics.com> on behalf of William Daniell <wdaniell.longport@gmail.com>
Sent: Monday, August 12, 2019 5:41:02 PM
Subject: Re: Europa-List: Reaming of spar and CM bushes
You rotated the pins in flight?!! Yikes!
It kinda makes sense but ....
William Daniell
LONGPORT
On Sun, Aug 11, 2019 at 4:35 AM D McFadyean <ami-mcfadyean@talktalk.net<mai
lto:ami-mcfadyean@talktalk.net>> wrote:
I would add that in level flight at 1g, my spar pins are as easy to rotate
in their holes as when sat on the ground.
DMcF.
On 11 August 2019 at 09:19 D McFadyean <ami-mcfadyean@talktalk.net<mailto:a
mi-mcfadyean@talktalk.net>> wrote:
That analysis assumes the fuselage structure to be inelastic and utterly un
yielding, whilst the spar is privaleged to flex.
All of the vertical loads going in to the lift pins have to pass through th
e fus structure too, which will yield to a greater or lesser extent.
Duncan Mcf.
On 10 August 2019 at 22:47 Pete <peterz@zutrasoft.com<mailto:peterz@zutraso
ft.com>> wrote:
What i have never understood, is why the cockpit module spar pin bushings a
re not vertical slots, because when the wings are flexing under G, the lift
pins take the fuse lift loads, and the spar flexing (under positive G) ac
tually force the spar pins _downard_ against the cockpit module....obvious
ly totally counter-productive.
Pete
A239
On Aug 10, 2019, at 5:29 PM, Bud Yerly < budyerly@msn.com<mailto:budyerly@m
sn.com>> wrote:
Fred,
Back before my time when mod 52 was done for the GW increase. The classic
had two 3/8 pins originally. Mod 52 uses the =BD inch pins and a spar stra
p .
As the wings pull forward under load, the fuselage would flex so they put i
n the cross bar and the new sockets.
Then the concern was that the starboard wing spar could become dislodged fr
om the socket and interfere with controls. The quick fix was to hold in th
e spar tip with a pip pin. The port wing was figured would stay put, and t
he spar strap would prevent flexing of the spar.
That is all I know. Andy would have the particulars on the detailed histor
y. It sort of all makes sense.
Best Regards,
Bud Yerly
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________________________________
From: owner-europa-list-server@matronics.com<mailto:owner-europa-list-serve
r@matronics.com> <owner-europa-list-server@matronics.com<mailto:owner-europ
a-list-server@matronics.com>> on behalf of Fred Klein <freddythek10@gmail.c
om<mailto:freddythek10@gmail.com>>
Sent: Thursday, August 8, 2019 1:29:43 AM
>>
Subject: Re: Europa-List: Reaming of spar and CM bushes
Bud=85you mention the use of the SouthCo pip pin on the port side and the A
llen bolt pin on starboard.
Do you know the reason for using different types of pins here?
Is there any downside to using SouthCo pip pins both port and starboard?=85
seems I=92ve heard that some builders have done so.
Fred
On Aug 7, 2019, at 8:35 PM, Bud Yerly < budyerly@msn.com<mailto:budyerly@ms
n.com>> wrote:
The SouthCo pip pin is nominally .4985 inches.
The Allen bolt pin for the starboard side is .497 to .495.
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