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Re: Europa-List: landing gear frame geometry

Subject: Re: Europa-List: landing gear frame geometry
From: GRAHAM SINGLETON <grahamsingleton@btinternet.com>
Date: Wed, 18 Apr 2012 22:30:46
Tony=0Abetter to plug with thick wall 4130 tube imho=0Aregards=0AGraham=0A
=0A=0A________________________________=0A From: Tony Renshaw <tonyrenshaw26
8@gmail.com>=0ATo: "europa-list@matronics.com" <europa-list@matronics.com> 
=0ASent: Wednesday, 18 April 2012, 22:24=0ASubject: Re: Europa-List: landin
g gear frame geometry=0A =0A=0AReference the landing gear frame, I recall m
aking up a redux flox mix and bedding in the tubes, so that the load were b
etter distributed. I intend on plugging the ends, probably with timber dowe
ls prior to drilling and final attachment, so I can tighten the bolts fully
 without deforming the tubes, plus also it stops CO2 ingress into my tunnel
 area.=0ARegards-=0ATony Renshaw-=0A=0ASent from my iPad=0A=0AOn 19/04/
2012, at 6:19 AM, Neville Eyre <neveyre@aol.co.uk> wrote:=0A=0A=0AHi Rowlan
d,=0A>Cut some 1/8''ply shims 1'' wide by about 10'' long, push the frame i
nto the tunnel and slip the shims behind the VERTICAL frame tubes. [ or tap
e them to the aft of the tubes]=0A>Check that the lower- U/C frame mounti
ng tube is level with the spar pin bushes, useing a straight edge / level s
et on the pins-[slot the holes in the firewall to achieve this] then kick
 / whack with a soft hammer the frame back so it nips the two shims, that i
s where you drill / bolt it.=0A>The frame tube geometry is all over the pla
ce, ignore it, just get the lower tube level and the two vertical tubes 1/8
'' off the firewall.=0A>Cheers,=0A>Nev.=0A>=0A>=0A>=0A>-----Original Messag
e-----=0A>From: Rowland Carson <rowlandcarson@gmail.com>=0A>To: Europa e-ma
il list list <europa-list@matronics.com>=0A>Sent: Wed, 18 Apr 2012 19:48=0A
>Subject: Europa-List: landing gear frame geometry=0A>=0A>=0A>--> Europa-Li
st message posted by: Rowland Carson <rowlandcarson@gmail.com> I've made a 
big hole in the firewall and am trying to get my landing gear frame =0A(LG0
1/3) aligned with the firewall according to the manual page 21M-2. That =0A
calls for 3 tubes (top horizontal and 2 vertical side ones) to be between 1
mm & =0A3mm from the vertical face of the firewall. After some fettling of 
the holes and tunnel radii the frame goes in without too =0Amuch effort, bu
t when I sight down the firewall for a rough check of how far =0Aaway the r
elevant tubes are I find they do not appear co-planar. The top tube is =0At
oo far away at the starboard side, but the starboard vertical tube is almos
t =0Atouching the firewall. The top tube is about the right distance from t
he =0Afirewall at the port side, but the port vertical tube could stand com
ing a =0Alittle closer. Oh, and the bottom horizontal tube is pretty much p
arallel to the =0Afirewall. The fuselage bottom moulding is sitting on a do
lly that provides =0Asupport for the curve of the underside and I have not 
observed any measurable =0Atwist in it. I took the LG frame out and checked
 the parallelism of the tubes in question by =0Alaying a steel flat diagona
lly across (the piece I had wasn't long enough to =0Astretch from side to s
ide or top to bottom); it rocks audibly on 3 out of 4 of =0Athe combination
s. My digital level also shows that the top and bottom tubes are =0Aabout a
 degree different from each other and the side vertical tubes are about =0A
half a degree different from each other. Is this significant? Should I ask 
for a replacement LG frame? My next step, if no other advice forthcoming, w
ould be to try setting the =0Aalignment with the swinging arm LG02 fitted t
emporarily, and accept whatever =0Amisalignment the tubes have with the fir
ewall. in friendship Rowland | Rowland Carson          ... that's Rowland w
ith a 'w' ...=0A| <rowlandcarson@gmail.com> http://www.rowlandcarson.org.uk
 | Skype, Twitter: rowland_carson      Facebook: Rowland Carson=0A| picture
s: http://picasaweb.google.com/rowlandcarson arget=_blank>http://www.matr
onics.com/Navigator?Europa-List p://forums.matronics.com=0Ablank>http://www
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