Today's Message Index:
----------------------
1. 01:12 AM - Re: Weather station (Nigel Charles)
2. 01:32 AM - door hinge fitting (paul stewart)
3. 03:09 AM - Re: brake pipe routing - parking brake? (Richard)
4. 03:27 AM - Re: door hinge fitting (R.C.Harrison)
5. 03:43 AM - Re: door hinge fitting (Gerry Holland)
6. 03:53 AM - Fuel Tank Cleaning before Soldering Iron Entry (Tony Renshaw)
7. 11:45 AM - Re: Fuel Tank Cleaning before Soldering Iron Entry (R.C.Harrison)
8. 06:29 PM - Torsional Damping, Gearbox wear and Engine mounts..... prop stuff too. (Peter Zutrauen)
9. 06:37 PM - Re: Torsional Damping, Gearbox wear and Engine mounts..... prop stuff too. (Tony S. Krzyzewski)
Message 1
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| Subject: | Re: Weather station |
--> Europa-List message posted by: "Nigel Charles" <nigelcharles@tiscali.co.uk>
>--> Europa-List message posted by: "Tony S. Krzyzewski" <tonyk@kaon.co.nz>
A lot of our unmanned strips now have automatic weather stations
(AWIB's) which transmit the current weather conditions when you click
transmit on their frequency four times. The system can't be too
expensive otherwise the private strip owners wouldn't put them in. I'll
have a ferret around and find out who makes them.<
Thanks Tony. The only trouble is that in the UK we are having difficulty
even trying to get an equivalent to a Unicom frequency so the chances of me
being allowed a frequency for the above purpose is extremely remote.
I am hoping that there is something which could use the short range no
licence walkie talkie transceivers. Perhaps the products you are referring
to can be adapted to use these products?
Regards
Nigel
Message 2
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| Subject: | door hinge fitting |
--> Europa-List message posted by: "paul stewart" <paul-d.stewart@virgin.net>
Just been fittin the doors and their hinges this evening. Cant quite see why
the side attached to the door is attached with countersunk screws and the
side attached to the fuselage with AN 525-10R10 dome headed screws. It seems
the door becomes hinge bound as it closes as the head of the AN525 is too
proud of the hinge. Anyone had similar experience or (as I'm thinking of
doing) replacing them with countersunk versions.
Regards
Paul Stewart #432
Message 3
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| Subject: | brake pipe routing - parking brake? |
--> Europa-List message posted by: "Richard" <riddon@btinternet.com>
Unless, of course, you stick with the toe brakes??
Hmmmm.!!
Richard Iddon G-RIXS
do not archive
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of Tony S.
Krzyzewski
Subject: RE: Europa-List: brake pipe routing - parking brake?
--> Europa-List message posted by: "Tony S. Krzyzewski" <tonyk@kaon.co.nz>
>>> Not me ... I have not really found the need for a parking brake. I
hold onto
the brake (right hand) while I do my run up (using my left hand for
throttle)
But it's a nice to have as it means you don't have to hold the control
column in your teeth. :-)
Tony
Message 4
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| Subject: | door hinge fitting |
--> Europa-List message posted by: "R.C.Harrison" <ptag.dev@ukonline.co.uk>
Hi! Paul.
No problem with mine as the book says. Have you got the hinges closing the
right way and well coutersunk for the countersunk screws?
regards
Bob Harrison G-PTAG
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of paul stewart
Subject: Europa-List: door hinge fitting
--> Europa-List message posted by: "paul stewart"
<paul-d.stewart@virgin.net>
Just been fittin the doors and their hinges this evening. Cant quite see why
the side attached to the door is attached with countersunk screws and the
side attached to the fuselage with AN 525-10R10 dome headed screws. It seems
the door becomes hinge bound as it closes as the head of the AN525 is too
proud of the hinge. Anyone had similar experience or (as I'm thinking of
doing) replacing them with countersunk versions.
Regards
Paul Stewart #432
Message 5
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| Subject: | Re: door hinge fitting |
--> Europa-List message posted by: Gerry Holland <gnholland@onetel.com>
Paul Hi!
Just checked my Hinges. They are close but certainly don't 'collide',
I remember after fitting I had a similar restriction but it turned out
to be the 'tangs' on which the Door Hinges fix (Door side) that were
catching the Fuselage area.
Regards
Gerry
Gerry Holland
mailto://gnholland@onetel.com
+44 7808 402404
Europa XS 384
G-FIZY
The greatest enjoyment from existence is living dangerously....
Friedrich Nietzsche
Message 6
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| Subject: | Fuel Tank Cleaning before Soldering Iron Entry |
--> Europa-List message posted by: Tony Renshaw <tonyrenshaw@ozemail.com.au>
Gidday,
I am wondering after reading Paul McAllisters website about the
recommendations for preping the fuel tank before I attack it with my
soldering iron to install the Europa fuel probe (magnetic). The question is
that I was only going to drain it of fuel and wash it out with water, but I
now fear that I need to do more than that. Does the plastic absorb some of
the fuel that would make things dangerous for me if I keep to my original
plan?
Reg
Tony Renshaw
Message 7
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| Subject: | Fuel Tank Cleaning before Soldering Iron Entry |
--> Europa-List message posted by: "R.C.Harrison" <ptag.dev@ukonline.co.uk>
Hi! Tony.
You don't say if the tank is installed or not?
If it's possible I would work with it filled with water to just below where
you are working.
Fuel gasses even come out of metal tanks and at 17% with air it explodes.
Regards
Bob Harrison G-PTAG
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of Tony Renshaw
Subject: Europa-List: Fuel Tank Cleaning before Soldering Iron Entry
--> Europa-List message posted by: Tony Renshaw <tonyrenshaw@ozemail.com.au>
Gidday,
I am wondering after reading Paul McAllisters website about the
recommendations for preping the fuel tank before I attack it with my
soldering iron to install the Europa fuel probe (magnetic). The question is
that I was only going to drain it of fuel and wash it out with water, but I
now fear that I need to do more than that. Does the plastic absorb some of
the fuel that would make things dangerous for me if I keep to my original
plan?
Reg
Tony Renshaw
Message 8
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| Subject: | Torsional Damping, Gearbox wear and Engine mounts..... prop |
stuff too.
--> Europa-List message posted by: "Peter Zutrauen" <peterz@zutrasoft.com>
A very bright engineer, Martin Poettcker at our local EAA chapter, who
is building a Zenair with a Subaru engine has researched and designed a
torsional damper for his personal application. His opinion was that
engine-mount softness was not a contributing factor to gear-loading and
wear at idle. Interesting though is his analysis that at idle-speed the
forces on the gearbox can be over 10x the forces seen at full power.
Most folks in the aviation community attempt to mitigate the problem by
reducing tolerances (removing gear-lash or tightening belts), but from
this fellow's research and analysis it his opinion that all these
actions do is raise the Q of the system resulting in even higher gear
forces at idle speeds.
I wonder if on the Rotax design the slipper-clutch comes into play at
idle speeds, and if so how much power it dissipates in an effort to save
the gear-train. One reason to keep that idle speed up as previously
discussed on this forum.
Martin's presentation was most enlightening, and his one-off design,
although based on a variant of an existing textbook design is ingenious
in its effectiveness and simplicity. I especially like the rubber
expansion chamber to accommodate the oil expansion due to the oil
damping-induced power dissipation. I'll be following his success,
failures and tuning with much interest.
His slides can be seen at:
http://eaa245.dhs.org/Presentations/EA81Torsion/Torsion/sld001.htm
For the folks who enjoy prop dynamics and construction techniques there
was also another EAA member who put on an equally intriguing
presentation. It can be seen at:
http://eaa245.dhs.org/Presentations/CozyProp/sld001.htm
Cheers,
Pete
A239
Message 9
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| Subject: | Torsional Damping, Gearbox wear and Engine mounts..... |
prop stuff too.
--> Europa-List message posted by: "Tony S. Krzyzewski" <tonyk@kaon.co.nz>
>> I wonder if on the Rotax design the slipper-clutch comes into play at
idle speeds, and if so how much power it dissipates in an effort to save
the gear-train. One reason to keep that idle speed up as previously
discussed on this forum.
Yes it does work at idle speed. Been there, done that, have shortened
prop blades and undamaged engine to prove it.
Tony
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