Will,
Details of all the new bits, what happened to prompt this, why the cables
are being deleted, etc., etc. are in my previous postings...
Regarding lateral movement, you've also got to have pressure against the
surface to get friction - unless youre VERY badly out of balance (in
knife-edge flight?), youre not going to get that!
Hope this helps!
Cheers,
Jeremy
Jeremy Davey
Europa Monowheel 537M G-EZZA
Europa Club Vice-Chairman, Webmaster, PFA NC Representative
PFA EC Member
If you can keep your head when all about you are losing theirs, then it is
possible you haven't grasped the severity of the situation.
Tail done
Standard XS wings with mods underway
CM installed in fuse (with airbrakes fittings)
1390 build hours to date
Intended fit:
Rotax 914 turbo, Airmaster CS fully-feathering prop
Lots of lights, buttons, switches, gizmos, and alarms
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of William Daniell
Subject: RE: Europa-List: Mod 70
Bob,
Adjuster screw - that is interesting. How does the mod overcome this - as I
understand it reading the document - it is the arm which has changed. Have
there been mods to the adjuster screw?
Yes my thoughts exactly with respect to the lateral movement. I would
assume that the new style arm, for practical purpose will be constantly in
contact with one or other of the sides and apart from the lateral play issue
will impart friction to the control system.
Cheers
Will
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of R.C.Harrison
Subject: RE: Europa-List: Mod 70
Hi! Will
The Mod 70 only allows 4mm side play.
I understand that the part that broke ( Having been previously under
extraneous circumstances!) was actually the adjuster screw thread,
prompting further calculation of the members themselves. As to whether
it was vertical stress or lateral stress I'm unaware, but the maximum
4mm side play may give the clue! With the cables tensioned correctly
there's no side play.
Regards
Bob Harrison G-PTAG
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of William
Daniell
Subject: RE: Europa-List: Mod 70
<wdaniell@etb.net.co>
For those of us not covered by the PFA and who have a little difficulty
and
cost getting stuff from the UK.
As I understand it the Tailplane mass balance arm broke at the lower
strut
where it joins by means of the adjustable connector to the TP torque
tube.
The issue is not the cables but the strength (or perhaps more accurately
the
fatigue resistance) of the mass balance arm in the face of vertical
stresses.
Could this be solved by simply reinforcing the mass balance arm? For
example by welding a sleeve over the lower tube.
I share Fred's concern that continuous friction and sideways play even
if
only 8mm can not be a good situation .in an airplane context.
Will
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Fred
Fillinger
Subject: Re: Europa-List: Mod 70
> "R.C.Harrison" <ptag.dev@tiscali.co.uk> wrote:
> ...
> but it doesn't mean that slides are a more
> professional fix to our solution in the first place.
I can agree there, if one will be able to feel the friction.
Especially if one doesn't fly a lot of hours, it seems the
counterweight will be in a permanent, "frictiony" rust condition. I
would have suggested Teflon, rather than phenolic.
Reg,
Fred F.
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