Today's Message Index:
----------------------
1. 12:54 AM - Re: Fly in Monday (Duncan & Ami)
2. 02:13 AM - Re: Re: Landing mishap - asking for advise (Duncan & Ami)
3. 02:37 AM - NSI prop controller (Kevin Challis)
4. 03:09 AM - Re: NSI prop controller (Pete Lawless)
5. 03:55 AM - Re: XS Exhaust System Cracks (JonSmith)
6. 03:55 AM - Re: NSI prop controller (Kevin Challis)
7. 04:20 AM - Re: Re: Landing mishap/ prop twist (David Joyce)
8. 05:12 AM - Re: Rotax 912S Carb Drip Trays (Alfred Buess)
9. 10:26 AM - Re: Cracks on the cockpit module near to the seat belts (ploucandco)
10. 01:05 PM - Re: Vapour lock? Why? (Frans Veldman)
11. 02:59 PM - Re: Vapour lock? Why? (Gilles Thesee)
12. 04:10 PM - Re: Vapour lock? Why? (klinefelter.kevin@gmail.com)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
David,
Presumably there is no intention to bring this forward to Sunday, rather
than holding on Monday, for which the forecast is not good (including
significant crosswind)?
Rgds.,
Duncan Mcf.
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of DAVID JOYCE
Sent: 24 August 2012 20:12
Subject: Europa-List: Fly in Monday
Fellow Europaees
I would like to invite any of the forum to our Fli in at abbots Bromley
on
Monday (Bank Holiday) this is an annual event in which we raise funds
for
the Air Ambulance.
The strip is 5 miles to the west of Tatenhill near derby, allways well
attended by aircraft of all types, over 500 metres and the home base of
four
Europas. Contact me for further details
All are welcome anytime after 10AM, Mogas and Avgas available at
HalfPenny
Green 12 mins from our strip, I may be able to arrange limited Mogas in
20
Litre Jerry cans in advance (please contact me), food and refreshment
and
camping facilities available on site.
Hope to see anyone that can make it
rgds
David joyce G-BXGG
(The Other One)
Sent to you from David Joyce
www.eastmidsspas.com
www.southyorksspas.com
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Landing mishap - asking for advise |
You'll also need to measure the diameter for any meaningful comparison;
generally, as diameter increases, the required overall prop twist along the
blade needs to be slightly less.
Then there's the fact that most manufactured blades in our class of use
(e.g. Warp Drive, Arplast) start off as a larger diameter prop (with a
better amount of twist) which is then cut down to the required diameter.
This of course removes twist, usually to well below the optimum!
Duncan McF.
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of zwakie
Sent: 21 August 2012 20:57
Subject: Europa-List: Re: Landing mishap - asking for advise
David, Graham and others,
I will take it upon myself to come up with the numbers on the twist of the
Arplast PV50 and publish them here in due time.
--------
Marcel
(Europa Classic Tri-Gear PH-MZW)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=381475#381475
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | NSI prop controller |
Hi
Does anyone have a spare NSI prop controller? Or can anyone fix it?
It provides a fully course voltage all the time. I have swapped the leads around
and it goes fully fine so no problem with the prop it's just!!!! The metal box
controller. The board inside is marked
NSI Aero products 120-19001-01 rev 2
Many thanks
Kevin Challis
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | NSI prop controller |
Hi Kevin
David Hunter has a spare available for sale. I suggest you contact him on
david.hunter68@btinternet.com or 07939 157426
Regards
Pete
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Kevin Challis
Sent: 25 August 2012 10:36
Subject: Europa-List: NSI prop controller
<kevinmarie@blueyonder.co.uk>
Hi
Does anyone have a spare NSI prop controller? Or can anyone fix it?
It provides a fully course voltage all the time. I have swapped the leads
around and it goes fully fine so no problem with the prop it's just!!!! The
metal box controller. The board inside is marked
NSI Aero products 120-19001-01 rev 2
Many thanks
Kevin Challis
--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: XS Exhaust System Cracks |
Hi Pete, thanks again for your reply, interesting to hear about your problems too.
Thank You also for the CKT contact details if I come to need it. I think
I've been supplied with a duff one. Waiting to hear back from Europa. In the
mean time I'm being ribbed about pictures of my crack appearing on the internet......
You're absolutely correct about G-TERN at Kemble. That's where I bought it from.
You've got an excellent memory because that was nearly nine years ago!
Cheers, Jon
--------
G-TERN
Classic Mono
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=381746#381746
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: NSI prop controller |
Pete
Thank you, I have spoken to David direct.
What would we do without this forum?
Kevin Challis
On 25 Aug 2012, at 11:08, "Pete Lawless" <pete@lawless.info> wrote:
>
> Hi Kevin
>
> David Hunter has a spare available for sale. I suggest you contact him on
> david.hunter68@btinternet.com or 07939 157426
>
> Regards
>
> Pete
>
> -----Original Message-----
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com] On Behalf Of Kevin Challis
> Sent: 25 August 2012 10:36
> To: Europa List
> Subject: Europa-List: NSI prop controller
>
> <kevinmarie@blueyonder.co.uk>
>
> Hi
>
> Does anyone have a spare NSI prop controller? Or can anyone fix it?
>
> It provides a fully course voltage all the time. I have swapped the leads
> around and it goes fully fine so no problem with the prop it's just!!!! The
> metal box controller. The board inside is marked
>
> NSI Aero products 120-19001-01 rev 2
>
> Many thanks
>
> Kevin Challis
>
>
>
>
>
>
>
> --
> This message has been scanned for viruses and
> dangerous content by MailScanner, and is
> believed to be clean.
>
>
>
>
>
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Landing mishap/ prop twist |
Duncan, As all Europa props are close to 1600mm it makes
very little difference. The actual maths are set out in
the article 'Does propeller twist matter?' in Europa Flyer
no 65 (available like all back numbers on the beautiful
new Europa Club website at
www.theeuropaclub.org/the-club/europa-flyer/ ). For a
1600mm prop, the amount of twist needed rises rapidly from
6 degrees at 20 kts to 24 at 100kts but then levels off to
just 29 degrees at 160 kts before coming down somewhat at
higher speeds. As the curve flattens out in the working
range an increase in diameter just moves you marginally
along this relatively flat segment. In practice 26
degrees is within 3 degrees of optimal for speeds between
90 odd kts and 200+ kts, whereas 12 degrees (your Warp
drive blade) is optimal for sitting stationary on the
ground with the throttle half open (this giving an airflow
of 40kts past the cock[pit!)
Regards, David
On Sat, 25 Aug 2012 10:12:17 +0100
"Duncan & Ami" <ami-mcfadyean@talktalk.net> wrote:
><ami-mcfadyean@talktalk.net>
>
> You'll also need to measure the diameter for any
>meaningful comparison;
> generally, as diameter increases, the required overall
>prop twist along the
> blade needs to be slightly less.
> Then there's the fact that most manufactured blades in
>our class of use
> (e.g. Warp Drive, Arplast) start off as a larger
>diameter prop (with a
> better amount of twist) which is then cut down to the
>required diameter.
> This of course removes twist, usually to well below the
>optimum!
>
> Duncan McF.
>
> -----Original Message-----
>From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com] On
>Behalf Of zwakie
> Sent: 21 August 2012 20:57
> To: europa-list@matronics.com
> Subject: Europa-List: Re: Landing mishap - asking for
>advise
>
>
><mz@cariama.nl>
>
> David, Graham and others,
>
> I will take it upon myself to come up with the numbers
>on the twist of the
> Arplast PV50 and publish them here in due time.
>
> --------
> Marcel
> (Europa Classic Tri-Gear PH-MZW)
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=381475#381475
>
>
>
>
>
>
>
>
>
>
>
>
>
>Un/Subscription,
>Forums!
>Admin.
>
>
>
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Rotax 912S Carb Drip Trays |
Christoph,
I used the Rotax drip trays sold with the 912S airbox and mounted them to the engine
ring mount. Works well with the Skydrive carb heat system in place. See
attached pictures. Ask if you need more information.
Alfred
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=381758#381758
Attachments:
http://forums.matronics.com//files/img_1690_980.jpg
http://forums.matronics.com//files/img_1689_188.jpg
http://forums.matronics.com//files/img_1681_147.jpg
http://forums.matronics.com//files/img_1682_116.jpg
Message 9
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Cracks on the cockpit module near to the seat belts |
Hi all, here is a drawing of the cockpit module that shows with red rectangles
the place where the pictures have been taken and so the location of the cracks.
Will 5 BID at both side of the existing panel and on the cracks location be
enough to repair and prevent reoccurence?
Thanks, Jacques
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=381795#381795
Attachments:
http://forums.matronics.com//files/cockpit_module_158.jpg
Message 10
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Vapour lock? Why? |
On 07/31/2012 10:57 PM, Frans Veldman wrote:
> I will check the system thoroughly and see if I can find any abnormalities.
An update about this problem.
(For those who didn't follow the conversation; it is about a sudden fuel
pressure drop on a Rotax 914 when applying take off power).
1) The waste gate appears to function normally. It is not binding, it
cycles normally when applying power to the TCU.
2) The fuel flow exceeds 120 liters per hour. So it has nothing to do
with the fuel filters or fuel pumps.
After confirming this, I changed my focus on the fuel pressure
regulator. I disconnected the airbox pressure connector and put a small
hose and syringe on it. With the syringe I could imitate a rising
pressure in the airbox (like the turbo spooling up during TO power).
What I found was this:
1) When I increase the reference pressure, I hear the fuel pump
labouring for a short while, while it has to cope with the higher back
pressure.
2) Whatever pressure I apply to the reference port, it quickly
disappears. There is no external leak according to a "soap" test. The
only possibility is that the air escapes via the fuel return line. (I
did check the syringe and the hoses, this is not where the pressure
escapes). I think that the fuel pressur regulator should not bleed away
the reference pressure.
3) When the reference pressure increases, the fuel pressure lags behind.
It comes up after a short while. It looks like is not a fuel pump
problem, it is the regulator that responds slowly.
4) If I pull the syringe (instead of pushing), there is not so much lag.
It also looks like the fuel pressure regulator holds an underpressur
better than an overpressure. This could mean there is a pinhole leak in
the diaphragm, it lets air more easily out than fuel in.
My conclusion is that the fuel pressure regulator is faulty, binding
and/or internally leaking. Any comments about this?
Should I replace the diaphragm or the whole regulator?
Thanks,
Frans
Message 11
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Vapour lock? Why? |
Frans Veldman a crit :
> My conclusion is that the fuel pressure regulator is faulty, binding
> and/or internally leaking. Any comments about this?
Frans,
Before concluding about the fuel pressure regulator, I would make sure
that the test procedure is adequate.
From numerous experiments in the past, I came to the conclusion that a
syringe is a poor means of applying a calibrated pressure to a dynamic
system such as the fuel pressure regulator.
What we did some years ago to ascertain the proper functionning of the
regulator, is apply a *calibrated head* of water by means of a clear
plastic line hoisted up to a certain height in our hangar. Of course we
provided an adequate 'S' routing so that no water would enter the
regulator port.
We found no discrepancy (using a usual fuel pressure gauge).
The resulting fuel pressure could be measured in much the same way, but
with a T fitting in the fuel line. Since we are awaiting a 0.25 bar
difference, the difference in the level in the two measuring tubes is
expected to be about 2.5 m, divided by 0.7, the density of fuel.
You could do that even with no head of water, just to make sure that the
regulator maintains Pairbox (= ambiant) + 0.25 bar, and with no leak.
Took some pictures, but failed to muster the courage to complete the
corresponding webpage on Contrails !
http://contrails.free.fr/engine_regul_en.php
BTW, we did not exactly use water, but a special scientific liquid with
better visibility : the remaining wine in the bottle left from the meal
we just had in the hangar on that particular Sunday...;-)
FWIW,
Best regards,
--
Gilles
http://contrails.free.fr
Message 12
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Vapour lock? Why? |
Hi Frans,
I was having a similar problem with my 914. Mine was running rough and stumbling
at high power, but only at altitudes above 10,000'.
The fuel differential pressure gauge would drop and engine run worse with more
power applied.
I replaced the carb bowl gaskets with new after inspecting the floats and now it
runs perfectly again. I think one of the gaskets leaked at high manifold pressure,
low external pressure, causing a fluctuation in the fuel/air box gauge
and very rough due to the imbalance.
I wonder if you might be experiencing the same problem? Seems more likely than
a problem with the regulator. Have you already ruled this out?
Kevin
On Aug 25, 2012, at 1:57 PM, Frans Veldman <frans@privatepilots.nl> wrote:
>
> On 07/31/2012 10:57 PM, Frans Veldman wrote:
>
>> I will check the system thoroughly and see if I can find any abnormalities.
>
> An update about this problem.
>
> (For those who didn't follow the conversation; it is about a sudden fuel
> pressure drop on a Rotax 914 when applying take off power).
>
> 1) The waste gate appears to function normally. It is not binding, it
> cycles normally when applying power to the TCU.
> 2) The fuel flow exceeds 120 liters per hour. So it has nothing to do
> with the fuel filters or fuel pumps.
>
> After confirming this, I changed my focus on the fuel pressure
> regulator. I disconnected the airbox pressure connector and put a small
> hose and syringe on it. With the syringe I could imitate a rising
> pressure in the airbox (like the turbo spooling up during TO power).
>
> What I found was this:
> 1) When I increase the reference pressure, I hear the fuel pump
> labouring for a short while, while it has to cope with the higher back
> pressure.
> 2) Whatever pressure I apply to the reference port, it quickly
> disappears. There is no external leak according to a "soap" test. The
> only possibility is that the air escapes via the fuel return line. (I
> did check the syringe and the hoses, this is not where the pressure
> escapes). I think that the fuel pressur regulator should not bleed away
> the reference pressure.
> 3) When the reference pressure increases, the fuel pressure lags behind.
> It comes up after a short while. It looks like is not a fuel pump
> problem, it is the regulator that responds slowly.
> 4) If I pull the syringe (instead of pushing), there is not so much lag.
> It also looks like the fuel pressure regulator holds an underpressur
> better than an overpressure. This could mean there is a pinhole leak in
> the diaphragm, it lets air more easily out than fuel in.
>
> My conclusion is that the fuel pressure regulator is faulty, binding
> and/or internally leaking. Any comments about this?
>
> Should I replace the diaphragm or the whole regulator?
>
> Thanks,
> Frans
>
>
>
>
>
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|