Today's Message Index:
----------------------
1. 05:43 AM - Oil temps / thermostat (glenn rainey)
2. 06:40 AM - Re: Oil temps / thermostat (Bob Harrison)
3. 07:30 AM - Re: Oil temps / thermostat (tennant)
4. 07:43 AM - Re: One wing Low (Frans Veldman)
5. 08:04 AM - One wing Low (Guerner Remi)
6. 11:03 AM - Re: One wing Low (David Joyce)
7. 11:08 AM - Re: One wing Low (Ivan Shaw)
8. 12:11 PM - It's not Fair! ()
9. 10:02 PM - Alternative fuel tank mounting? (Andrew Sarangan)
10. 10:27 PM - Re: Alternative fuel tank mounting? (Fred Klein)
11. 10:37 PM - Re: Alternative fuel tank mounting? (Andrew Sarangan)
12. 10:43 PM - Re: Alternative fuel tank mounting? (Karl Heindl)
13. 11:02 PM - Re: Alternative fuel tank mounting? (Fred Klein)
Message 1
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| Subject: | Oil temps / thermostat |
We have fitted the Thermostasis oil thermostat to our Europa Monowheel Classic
(XS cowl). It
has made no difference to the oil temperatures. Has anyone else any experience
of this or related installation?
Martin Burns
Glenn Rainey
G-OJHL
912 Classic Monowheel
Cumbernauld, Scotland
Message 2
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| Subject: | Oil temps / thermostat |
Hi! Martin ,
Have you checked the oil temperature sender by any chance ?
I was about to fit a thermostatic guismo since mine never gets sufficiently
hot but was considering getting a replacement temp sender first to be sure I
knew where I was starting from.
Regards
Bob Harrison G-PTAG
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of glenn rainey
Sent: 05 December 2013 13:42
Subject: Europa-List: Oil temps / thermostat
--> <nimbusaviation@yahoo.com>
We have fitted the Thermostasis oil thermostat to our Europa Monowheel
Classic (XS cowl). It has made no difference to the oil temperatures. Has
anyone else any experience of this or related installation?
Martin Burns
Glenn Rainey
G-OJHL
912 Classic Monowheel
Cumbernauld, Scotland
Message 3
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| Subject: | Re: Oil temps / thermostat |
Hi Glen,
I have the same thermostsis thermostat and I have the feeling that it has quite
a high bypass rate as the oil still does not get warm very quickly.
Barry
--------
Barry Tennant
D-EHBT
At EDLM - Germany
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=414908#414908
Message 4
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| Subject: | Re: One wing Low |
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Hash: SHA1
On 12/05/2013 05:46 AM, AirEupora wrote:
> I have been trying to figure out why my airplane flies One Wing
> Low on the left wing.
Check the rudder. If the rudder isn't balanced and giving some input
all the time, you have to fly one wing low to correct it.
What exactly to you mean with "one wing low"?
a) It is flying straight and level with one wing low.
b) It tends to make a curve all the time and the bank angle keeps
increasing if you let go of the stick. If you push it straight with
the stick, both wings are level.
If it is a) then it is a rudder problem.
If I understand your measurements correctly, the wings are balanced
enough not to create serious problems.
Frans
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Message 5
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To Air Europa,
It seems to me you should clarify whether you are experiencing a One Wing Low or
a One Wing Heavy condition, as the causes and remedies may be different.
1. One Wing Heavy: you need to apply constant pressure to the stick. As soon as
you release it, the left wing drops and the aircraft turns to the left. If this
is what you are experiencing, I think you have done the right things: adjusting
the flaps and adding some sort of trim tabs to the aileron. These should
solve the problem, but only for a given load, a given power setting and a given
airspeed. When you slow down, for example, the compensation is less effective
and the aircraft wants to turn left again. This is normal. There is probably
nothing wrong with your aircraft: the Europa is very sensitive to the lateral
repartition of the load. It makes a big difference between flying solo and flying
with a passenger, even with lightweight persons. The ultimate solution is
to install an in flight adjustable trim system to the ailerons and possibly
to the rudder. These will allow to fly hands free in all conditions, climb, cruise,
descent, solo or fully loaded.
2. One Wing Low: let's say you are flying with no pressure on the rudder pedals
nor on the stick and the aircraft is flying on a constant heading and you see
your left wing is lower than the right one. The ball of your slip indicator
is offset to the left, confirming your wings are not level. That means that the
aircraft is flying in a stabilized forward slip. Then push the rudder pedal
to the left to center the ball and press the stick to the right to prevent the
aircraft from turning left. Then, you will be flying straight and level, but
with some constant pressure applied to the controls. Add a tab to the rudder
and adjust it until a constant push on the pedal is no longer necessary at cruise.
You still have to press the stick to the right to fly straight and level,
so you are now in the One Wing Heavy condition. Then refer to 1.
I hope that helps.
Remi Guerner
F-PGKL XS Monowheel
<<<<<<<<I have been trying to figure out why my airplane flies One Wing Low on
the left
wing.
I have tried a number of things to see if I could get the wing up. Bud suggested
that I tape a couple of pencils to the opposite Aileron and that helped, but
not help that much.
I have lower the flap on the left and that has helped in the cruise flight, but
as soon as I slow down the wing well drop.
One other thing, I weight 250lbs. I have put sand bags up to 150lbs in the right
seat. It did not help with my problem.>>>>>>>>>>>>>>>>>>>
Message 6
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| Subject: | Re: One wing Low |
If your systems allow it I would be tempted to fly it solo
from the R seat. If you then find that it flies R wing
down you have the answer. Thebplanebis so sensitive that I
find that if I am flying in perfectly still air above the
thermal layer I can fly the plane by weight shift,
stretching a leg or leaning a bit to one side to go down
or turn.
If however it is still L down then I would do some
accurate measures of the wing rigging angles, as it may
well be that your R wing is rigged a fraction of a degree
up from the L. Changing the rigging is not a practical
proposition, so I suspect you would be in the situation of
having to do a sizeable addition of a trim strip on your R
aileron.
Regards, David Joyce, G- XSDJ
On Thu, 05 Dec 2013 16:42:12 +0100
Frans Veldman <frans@privatepilots.nl> wrote:
><frans@privatepilots.nl>
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 12/05/2013 05:46 AM, AirEupora wrote:
>
>> I have been trying to figure out why my airplane flies
>>One Wing
>> Low on the left wing.
>
> Check the rudder. If the rudder isn't balanced and
>giving some input
> all the time, you have to fly one wing low to correct
>it.
>
> What exactly to you mean with "one wing low"?
> a) It is flying straight and level with one wing low.
> b) It tends to make a curve all the time and the bank
>angle keeps
> increasing if you let go of the stick. If you push it
>straight with
> the stick, both wings are level.
>
> If it is a) then it is a rudder problem.
>
> If I understand your measurements correctly, the wings
>are balanced
> enough not to create serious problems.
>
>Frans
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>
>Admin.
>Un/Subscription,
>Forums!
>
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Message 7
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Do make sure that the ball is centred with rudder trim prior to addressing roll
trim.
Ivan
-----Original Message-----
From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of David Joyce
Sent: 05 December 2013 19:03
Subject: Re: Europa-List: One wing Low
--> <davidjoyce@doctors.org.uk>
If your systems allow it I would be tempted to fly it solo from the R seat. If
you then find that it flies R wing down you have the answer. Thebplanebis so sensitive
that I find that if I am flying in perfectly still air above the thermal
layer I can fly the plane by weight shift, stretching a leg or leaning a bit
to one side to go down or turn.
If however it is still L down then I would do some accurate measures of the
wing rigging angles, as it may well be that your R wing is rigged a fraction
of a degree up from the L. Changing the rigging is not a practical proposition,
so I suspect you would be in the situation of having to do a sizeable addition
of a trim strip on your R aileron.
Regards, David Joyce, G- XSDJ
On Thu, 05 Dec 2013 16:42:12 +0100
Frans Veldman <frans@privatepilots.nl> wrote:
><frans@privatepilots.nl>
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 12/05/2013 05:46 AM, AirEupora wrote:
>
>> I have been trying to figure out why my airplane flies One Wing Low
>>on the left wing.
>
> Check the rudder. If the rudder isn't balanced and giving some input
>all the time, you have to fly one wing low to correct it.
>
> What exactly to you mean with "one wing low"?
> a) It is flying straight and level with one wing low.
> b) It tends to make a curve all the time and the bank angle keeps
>increasing if you let go of the stick. If you push it straight with
>the stick, both wings are level.
>
> If it is a) then it is a rudder problem.
>
> If I understand your measurements correctly, the wings are balanced
>enough not to create serious problems.
>
>Frans
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> Version: GnuPG v2.0.22 (GNU/Linux)
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>
>Admin.
>Un/Subscription,
>Forums!
>
>
>
Message 8
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Hello,
I posted a complaint about missing David Joyce's Dolly and got
several replies and suggestions, all of which I tried. I note in every case,
list or no, the total count for the item was over 2 Mb..... That seems a
large count for what is usually in the kb range. Surely it can't be my
computer if the net is carrying other topics at that level.
Thus, I ring my gong again - maybe I should ring Matt Dralle's
gong?
Cheers,
Ferg
Message 9
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| Subject: | Alternative fuel tank mounting? |
I am hoping someone can comment on an alternative tank mounting
strategy. A picture of what I am thinking is attached.
To avoid any potential stresses developing due to tank expansion, I am
thinking of horizontally bracing the fuel tank against the baggage
bay wall using two fiberglass straps all the way around the tank - one
strap below the tank ledge and the other just above the outlet bosses.
These straps are for simply maintaining the fore/aft and lateral
position of the tank. Vertically, the tank will simply sit on the
fuselage floor. The tank bottom is nearly flush with the baggage bay
floor, so it should sit nice and even on the fuselage. With this
setup, I have satisfactory clearance between the spars, pitch tube and
the tank outlets. I plan to add a thin neoprene pad around the tank
bottom to make sure there are no hard points of contact between the
tank and the fuselage. The neoprene is oil resistant, non-absorbent
and has fire resistance.
Since this is such an irreversible step, I want to make sure I am
thinking this through correctly. Probably the larger questions are,
will the fuselage floor be able to take the entire tank load? Is there
any issue with letting the top portion of the tank (the ledge)
floating with no vertical support?
Message 10
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| Subject: | Re: Alternative fuel tank mounting? |
On Dec 5, 2013, at 10:01 PM, Andrew Sarangan wrote:
> I am thinking of horizontally bracing the fuel tank against the
baggage
> bay wall using two fiberglass straps all the way around the tank - one
> strap below the tank ledge and the other just above the outlet bosses.
Andrew...a question:
Are you planning to bond these fiberglass straps to the fuel tank as
they encircle the tank? If so, do you have any concerns about stress
concentrations building up in the tank adjacent to the straps?
Fred
Message 11
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| Subject: | Re: Alternative fuel tank mounting? |
No, the straps will not be bonded to the tank, just to the baggage bay
wall. The side of the strap facing the tank will have a neoprene pad,
so there will be some 'give' to accommodate small expansions.
On Fri, Dec 6, 2013 at 1:26 AM, Fred Klein <fklein@orcasonline.com> wrote:
>
> On Dec 5, 2013, at 10:01 PM, Andrew Sarangan wrote:
>
> I am thinking of horizontally bracing the fuel tank against the baggage
> bay wall using two fiberglass straps all the way around the tank - one
> strap below the tank ledge and the other just above the outlet bosses.
>
>
> Andrew...a question:
>
> Are you planning to bond these fiberglass straps to the fuel tank as they
> encircle the tank? If so, do you have any concerns about stress
> concentrations building up in the tank adjacent to the straps?
>
> Fred
>
>
Message 12
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| Subject: | Alternative fuel tank mounting? |
Hi Andrew=2C
I think you are going out on a limb with this idea. A full tank is a very h
eavy load and the fuselage floor is not designed to take this=2C or the des
igners would have placed it on the floor.The load should be taken up entire
ly by the cockpit module.
Karl
> From: asarangan@gmail.com
> Date: Fri=2C 6 Dec 2013 01:01:29 -0500
> Subject: Europa-List: Alternative fuel tank mounting?
> To: europa-list@matronics.com
>
> I am hoping someone can comment on an alternative tank mounting
> strategy. A picture of what I am thinking is attached.
>
> To avoid any potential stresses developing due to tank expansion=2C I am
> thinking of horizontally bracing the fuel tank against the baggage
> bay wall using two fiberglass straps all the way around the tank - one
> strap below the tank ledge and the other just above the outlet bosses.
> These straps are for simply maintaining the fore/aft and lateral
> position of the tank. Vertically=2C the tank will simply sit on the
> fuselage floor. The tank bottom is nearly flush with the baggage bay
> floor=2C so it should sit nice and even on the fuselage. With this
> setup=2C I have satisfactory clearance between the spars=2C pitch tube an
d
> the tank outlets. I plan to add a thin neoprene pad around the tank
> bottom to make sure there are no hard points of contact between the
> tank and the fuselage. The neoprene is oil resistant=2C non-absorbent
> and has fire resistance.
>
> Since this is such an irreversible step=2C I want to make sure I am
> thinking this through correctly. Probably the larger questions are=2C
> will the fuselage floor be able to take the entire tank load? Is there
> any issue with letting the top portion of the tank (the ledge)
> floating with no vertical support?
Message 13
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| Subject: | Re: Alternative fuel tank mounting? |
On Dec 5, 2013, at 10:36 PM, Andrew Sarangan wrote:
> No, the straps will not be bonded to the tank, just to the baggage bay
> wall. The side of the strap facing the tank will have a neoprene pad,
> so there will be some 'give' to accommodate small expansions.
Andrew...if I had it to do over again, I would attempt to ensure that
the underside (including the "ledge") is fully supported yet free to
expand and contract...I would install all the tapes to the CM which are
called for, but I would provide a cushioned bond-break between the tape
and the tank. In my attached build-photo, the FG tape was regrettably
bonded to the tank.
Fred
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