Today's Message Index:
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1. 12:55 AM - 912ULS to 914? (William Bliss)
2. 12:57 AM - Re: Fuel vent (Remi Guerner)
3. 02:13 AM - Re: 912ULS to 914? (jonathanmilbank)
4. 02:44 AM - Re: 912ULS to =?UTF-8?Q?=39=31=34=3F? (davidjoyce@doctors.org.uk)
5. 11:23 AM - Re: 912ULS to 914? (graeme bird)
6. 12:47 PM - Re: Fuselage (Roland)
Message 1
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Dear All
I am struggling to get out of a 450m grass strip 2 persons and full fuel
(no baggage).
Has anyone got experience of the improvement in take off performance
with the Rotax 914 over the 912ULS?
I expect this has been debated before but I cannot find a way to search
the matronics website for it.
Thanks
William Bliss G-WUFF
Mono Classic XS firewall forwards. 912ULS, Woodcomp SR3000, Smartcontroller
Message 2
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Jerry,
That is interesting. Thanks for sharing.
I have always considered a fuel vent facing forward was not a safe enough solution,
as water and dirt (even bugs!) may enter in flight, being pushed by the airflow.
Therefore I have added a second vent which exits vertically at the bottom
of the fuselage. The two vents are connected with a tee. Additionally, I have
covered the top vent with a stainless steel screen.
The bottom vent is also convenient when filling the tank as it allows excess fuel
to flow out before the cobra is filled to the top.
Remi
F-PGKL
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=460552#460552
Message 3
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Subject: | Re: 912ULS to 914? |
Hi William,
I have experience with the 912UL, the 912ULS as now fitted to my aircraft and some
time in a friend's Europa with the 914, which I flew for the initial issue
of its permit and subsequently.
Subjectively I can assure you that the extra 15 horses in the 914, available for
take-off for a short period, are very noticeable and possibly shortening the
run by something like 10%.
But I wouldn't want the 914 for my aircraft, partly because it's much heavier and
also there are questions in my mind about its reliability.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=460556#460556
Message 4
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Subject: | Re: 912ULS to =?UTF-8?Q?=39=31=34=3F? |
William, I have never had any trouble operating from a variety of 400m
strips with my XS/914/WoodcompSR2000 or SR3000W combination. There is
also a considerable benefit if you want to fly at altitude as it gets
more efficient the higher you go effectively. As to reliability the
older versions had a tendency for the waste gate to stick if you used
Avgas in particular, but this was not too serious - it effectively left
you with a fixed manifold pressure, and a 30min job in unsticking it. I
have not had any other reliability issues with mine in over 1000hrs.
Having said all that I am not sure that I wouldn't go for a 915IS if
starting again.
Regards, David Joyce, G-XSDJ
On 2016-09-18 08:52, William Bliss wrote:
>
> Dear All
> I am struggling to get out of a 450m grass strip 2 persons and full fuel (no
baggage).
> Has anyone got experience of the improvement in take off performance with the
Rotax 914 over the 912ULS?
> I expect this has been debated before but I cannot find a way to search the matronics
website for it.
> Thanks
> William Bliss G-WUFF
> Mono Classic XS firewall forwards. 912ULS, Woodcomp SR3000, Smartcontroller
>
Links:
------
[1] http://www.matronics.com/Navigator?Europa-List
[2] http://forums.matronics.com
[3] http://wiki.matronics.com
[4] http://www.matronics.com/contribution
Message 5
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Subject: | Re: 912ULS to 914? |
I have a similar set up to you and fly from a short strip, I seem to be unstuck
in 200 Meters or less, are you sure your prop is setup to go fine enough? Do
you have the wide blades?
--------
Graeme Bird
G-UMPY - Mono Classic/XS FFW 912S, Woodcomp 3000/3W CS, trutrak Gemini 2 axis
ap, pflarm, ads-b out, 8.33khz, mode S, FP 5, Aera500 & SD on Nexus,
250 hours & 4 years on the Mono, 880 total
g(at)gdbmk.co.uk
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=460571#460571
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....read about it in the new EF - sorry about that.....
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=460574#460574
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