Today's Message Index:
----------------------
1. 03:41 AM - Strobes (Mike Wylde)
2. 03:47 AM - Re: Strobes (David stranfaer)
3. 08:47 AM - Re: Dipole com antenna (h&jeuropa)
4. 08:50 AM - Re: Rotax 914 UMA Differential Pressure Transducer Failure? (h&jeuropa)
5. 08:52 AM - Re: Fuel stabilising (h&jeuropa)
6. 11:28 AM - Re: Re: Fuel stabilising (Mike Christine Duane)
7. 01:43 PM - Re: Fuel stabilising (SPURPURA)
8. 01:45 PM - Re: Strobes (europaul383)
9. 07:04 PM - Re: Re: Dipole com antenna (Martin Tuck)
10. 07:39 PM - Re: Europa XS Simulation for Android. (ArnoldWilder)
Message 1
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Hi all, I've been lurking for a while, now my first post looking for advice
please.
I've recently bought a nearly finished (yes, it is, really!) XS trigear
with a 912ULS.
I'd like to fit strobes on top and bottom of the fus. Clearly each needs a
hemispherical (or doughnut) light pattern, but I want streamlined
teardrops, not round beacons. I can find 3 possibles.
Only one is LED. That's the Kuntzleman (badged Skyflash in the UK by
Airworld/Sandalwood). https://www.kestrobes.com/all-led-systems/ Looking at
the distribution of LEDs in it, I suspect a lot of the flash would go
vertically and the important doughnut distribution would be less bright. Of
course it's really meant for wingtip mounting. Anyone tried it please?
Second possibility is the Kuntzleman /Skyflash discharge tube type. I
reckon that will give a better distribution as the tube is exposed and non
directional. https://www.kestrobes.com/double-dual-magnum/ Anyone know how
many joules it is per flash please? I've asked but Mr K wouldn't give me a
number.
Third possibility is the similar MicroAvionics discharge tube type (UK
produced). Like the Kuntzleman it gives you a double flash alternating.
Each individual flash is 25 joules i.e 50 joules per double flash cycle per
lamp. It's pretty bright, I suspect the K is lower power.
https://www.microavionics.com/twin-head-high-power-strobe.html
I would have preferred LED but I think it may be less effective.
The K flash tube one has the slight advantage of being a LAA standard mod
needing no further approval.
The MicroAvionics may be the best, I've used one, I'm impressed with its
output, but it means getting approval.
I'm in a quandary! All advice and experience gratefully received, apologies
for the rather long post.
Mike
Message 2
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Micro Avionics. Is the one
Sent from my iPhone
> On 23 Jan 2020, at 11:41, Mike Wylde <mike@wylde.me.uk> wrote:
>
> =EF=BB
> Hi all, I've been lurking for a while, now my first post looking for advic
e please.
> I've recently bought a nearly finished (yes, it is, really!) XS trigear wi
th a 912ULS.
> I'd like to fit strobes on top and bottom of the fus. Clearly each needs a
hemispherical (or doughnut) light pattern, but I want streamlined teardrops
, not round beacons. I can find 3 possibles.
> Only one is LED. That's the Kuntzleman (badged Skyflash in the UK by Airwo
rld/Sandalwood). https://www.kestrobes.com/all-led-systems/ Looking at the d
istribution of LEDs in it, I suspect a lot of the flash would go vertically a
nd the important doughnut distribution would be less bright. Of course it's r
eally meant for wingtip mounting. Anyone tried it please?
> Second possibility is the Kuntzleman /Skyflash discharge tube type. I reck
on that will give a better distribution as the tube is exposed and non direc
tional. https://www.kestrobes.com/double-dual-magnum/ Anyone know how many j
oules it is per flash please? I've asked but Mr K wouldn't give me a number.
> Third possibility is the similar MicroAvionics discharge tube type (UK pro
duced). Like the Kuntzleman it gives you a double flash alternating. Each in
dividual flash is 25 joules i.e 50 joules per double flash cycle per lamp. I
t's pretty bright, I suspect the K is lower power. https://www.microavionics
.com/twin-head-high-power-strobe.html
> I would have preferred LED but I think it may be less effective.
> The K flash tube one has the slight advantage of being a LAA standard mod n
eeding no further approval.
> The MicroAvionics may be the best, I've used one, I'm impressed with its o
utput, but it means getting approval.
> I'm in a quandary! All advice and experience gratefully received, apologie
s for the rather long post.
> Mike
>
Message 3
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| Subject: | Re: Dipole com antenna |
Martin,
The Wikepedia article is a pretty good explanation,
https://en.wikipedia.org/wiki/Dipole_antenna
Because the ends are folded on the SA-006, the impedance of the antenna needs to
matched to the feedline and the com output. Archer uses a gamma match for this.
Your planned installation sounds fine.
A dipole in the rear fin per the build manual also works very well but access on
a completed airframe is somewhat difficult.
Jim
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494417#494417
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| Subject: | Re: Rotax 914 UMA Differential Pressure Transducer Failure? |
Ron,
Never a failure. Installed on the engine side of the firewall.
15 years, 1000 hours service.
Jim & Heather
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494418#494418
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| Subject: | Re: Fuel stabilising |
Steve,
We have always used Sta-bil and leave the tank about 1/2 full of 94 octane car
gas each winter. We top the tank with fresh car gas prior to first flight in
the Spring. Typically the plane is not flown from December to March.
Jim & Heather
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494419#494419
Message 6
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| Subject: | Re: Fuel stabilising |
Good afternoon Jim & Heather,
As an add on to this topic, do you do anything special to the engine to prevent/retard
corrosion of the cylinder walls and pistons?
Mike Duane
Now relocated to Chandler Arizona.
Sent from my iPhone
> On Jan 23, 2020, at 9:52 AM, h&jeuropa <butcher43@att.net> wrote:
>
>
> Steve,
>
> We have always used Sta-bil and leave the tank about 1/2 full of 94 octane car
gas each winter. We top the tank with fresh car gas prior to first flight in
the Spring. Typically the plane is not flown from December to March.
>
> Jim & Heather
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=494419#494419
>
>
>
>
>
>
>
>
>
Message 7
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| Subject: | Re: Fuel stabilising |
If I were to store it for over 90 days Id drain the auto fuel and replace with
2 gallons of 100LL and run it a while to get the carb bowls full. Less than 90
days, no worries.
--------
N951EU - Tri-gear & 912ULS, N77EU- Mono & 914
I'D RATHER HAVE A BOTTLE IN FRONT OF ME THAN A FRONTAL LABOTAMY.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494428#494428
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Message 9
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| Subject: | Re: Dipole com antenna |
Thanks Jim,
I think later Europas had premoulded (hollow) fins. Mine has the
original foam core fin. However it sounds like the fuselage is fine also.
How it all works - well, it is all magic. :-)
Regards,
Martin
On 1/23/2020 10:46 AM, h&jeuropa wrote:
>
> Martin,
>
> The Wikepedia article is a pretty good explanation,
>
> https://en.wikipedia.org/wiki/Dipole_antenna
>
> Because the ends are folded on the SA-006, the impedance of the antenna needs
to matched to the feedline and the com output. Archer uses a gamma match for
this.
>
> Your planned installation sounds fine.
>
> A dipole in the rear fin per the build manual also works very well but access
on a completed airframe is somewhat difficult.
>
> Jim
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=494417#494417
>
>
Message 10
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| Subject: | Re: Europa XS Simulation for Android. |
[quote="ppsel03"]Fly N914XS before? Now you can again as I've written the attached
free simulator for it.
https://play.google.com/store/apps/details?id=com.stevokeano.angrycanyon (https://play.google.com/store/apps/details?id=com.stevokeano.angrycanyon)
Using an NACA23012 airfoil with symmetrical stabs (Is the NACA23012 close to our
wing?). No flaps yet... It's perhaps a little over powered, but fly's great
once you get used to the mode 2 RC joysticks. Sorry, I cannot afford apple developer
Kit at the moment so its only available FREE on Android.
Please note NO permissions are needed on your Android device just hours of your
time flying the plane!
Tata,
Steve Kean
PPSEL03
N914XS
https://play.google.com/store/apps/details?id=com.stevokeano.angrycanyon (https://play.google.com/store/apps/details?id=com.stevokeano.angrycanyon)
> [b]
I used to play a free simulator and it sucks. After that, I found another paid
simulator and bought it and it was really cool. Then I found out that my younger
brother uses the same paid simulator. When I asked him how he got this simulator,
he just told me about https://yourmoneygeek.com (https://yourmoneygeek.com/free-google-play-credit/).
If to tell briefly, then thanks to the instructions
on the site you can learn how to earn google play credits)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494433#494433
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