Today's Message Index:
----------------------
1. 05:30 AM - Re: Weight & Balance (Jim Butcher)
2. 08:01 AM - Re: Re: Weight & Balance (Tim Weert)
3. 08:34 AM - Fuel pressure question (Fergus Kyle)
4. 10:57 AM - Re: Fuel pressure question (Rob Housman)
5. 12:46 PM - DOTH Panshanger Thu. 6th (Paddy Clarke)
6. 07:01 PM - Re: Diesel-Air engines??? (Chris Beck)
7. 07:23 PM - Re: DOTH Panshanger Thu. 6th (Bbryanallsop@wmconnect.com)
Message 1
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Subject: | Re: Weight & Balance |
--> Europa-List message posted by: "Jim Butcher" <europa@triton.net>
I have a copy of a fax that Andy sent a builder in Sweden back in 2000 which
addressed a MTUW of 1450 lbs. This weight is suggested due to landing gear
strength and aircraft performance. The calculation for the strength of the
composites is 1575 lbs. The conclusion is that the CG limits when operating
at weights above 1370 lbs should be revised to be between 59.0 to 61.5
inches which is one inch less forward and aft.
Also stall speeds are expected to be 50 kts flaps down and 55 kts flaps up
but this has not been tested.
Jim Butcher
N241BW
Message 2
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Subject: | Re: Weight & Balance |
--> Europa-List message posted by: "Tim Weert" <tim.weert@hccnet.nl>
Hi Jim,
I just have received permission from the Dutch CAA to increase the max TOW
to 1450 lbs for PH-JAI with reduced CG limits in the envellope above 1370
lbs, based on the same document (the fax from Andy).
Because in the Swedisch document the configuration in the side-letter is a
Europa XS, a Rotax 914 and Warp Drive propeller; that is the only
configuration on which the Dutch authorithy's accept for an increase MTOW
request. That is how the regulations work, based on paperwork.
Because in my opinion it is a pure struktural discussion, I am convinced
that the increase must be possible for owners with an Europa Classic with
MOD 52 installed (gives MTOW 1370 lbs), and a Rotax 912, 912 S or other
engines/propeller's as well. As long as the performance is above the minimum
required for our class of aircraft. But than the kit-manufracturer or the
designer has to declare that in a official document with the calculations in
a side-letter.
Regards, Tim.
Heerhugowaard,
#460, PH-JAI 914 AP332 MTOW 1450 lbs
Message 3
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Subject: | Fuel pressure question |
--> Europa-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca>
Classic 914 mono
I was wondering if there is valid discussion surrounding the effects of
substituting a 90deg fuel fitting for a straight-through one at the
firewall. We are talking 3/8inch aluminum and -6 fittings here. I have
installed the latter in order to present a serene curve to the fuel
downstream of the requisite pumps, but wonder whether replacing it with a
90deg model for ease of routing would affect the efficiency of the flow or
have any effect in producing evaporation due resident heat etc - or in fact
anything at all?
Any comment gratefully received.
Cheers, Ferg
Message 4
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Subject: | Fuel pressure question |
--> Europa-List message posted by: "Rob Housman" <robh@hyperion-ef.us>
Fear not, the effect will be negligible. A 90 degree fitting is the
equivalent of less than 2 ft of straight tubing, according to my old Chem E.
textbook which deals with pipe, but since pipe has a rougher surface than
tubing the friction loss will be even less for tubing.
Best regards,
Rob Housman
A070
Airframe complete
Irvine, CA
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of Fergus Kyle
Sent: Tuesday, April 04, 2006 8:32 AM
Subject: Europa-List: Fuel pressure question
--> Europa-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca>
Classic 914 mono
I was wondering if there is valid discussion surrounding the effects of
substituting a 90deg fuel fitting for a straight-through one at the
firewall. We are talking 3/8inch aluminum and -6 fittings here. I have
installed the latter in order to present a serene curve to the fuel
downstream of the requisite pumps, but wonder whether replacing it with a
90deg model for ease of routing would affect the efficiency of the flow or
have any effect in producing evaporation due resident heat etc - or in fact
anything at all?
Any comment gratefully received.
Cheers, Ferg
Message 5
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Subject: | DOTH Panshanger Thu. 6th |
--> Europa-List message posted by: Paddy Clarke <paddyclarke@lineone.net>
Hi Folks,
I know we may be a bit short of takers due to the big event over the
pond this week, but how about a DOTH to Panshanger on Thursday (6th).
Voucher in Flyer - and awesome apple pie for lunch !.
Cheers, Paddy
Paddy Clarke
Europa XS - 404 G-KIMM
Message 6
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Subject: | Re: Diesel-Air engines??? |
--> Europa-List message posted by: Chris Beck <n9zes@verizon.net>
Duncan McFadyean wrote:
>--> Europa-List message posted by: "Duncan McFadyean" <ami@mcfadyean.freeserve.co.uk>
>
>I was offered a prototype to install in a EUropa, albeit at that time it was
>"estimated" at 100kg weight (+exhaust, +radiators, +water, +oil, +heavier
>battery, +bigger battery etc ..and so it goes...).
>However, both this engine and (IMHO) the WAM are to heavy for a Europa, if
>it is to retain its originally intended "mission profile".
>But if you enjoy experimenting and are prepared to compromise the overall
>performance of the Europa, then it could be for you!
>
>This comment will open old wounds, but look at just how successful the
>Subaru has been (or why is it that Subaru-Europas command a relatively poor
>resale value, sometimes with the statement "..would make good Rotax
>conversion project....").
>
>Duncan McF.
>
>
>
Thanks for the comments everyone. The Rotax is a great engine and a
good match for the Europa, indeed. But, to me, "real engines don't have
sparkplugs". I'll put a diesel wherever I can.
On that same note, I realize that there are few options that are as
proven, reliable, and overall good performing as the Rotax. Coming up
with a diesel as light and compact as the Rotax with the same power
output isn't going to be easy. And, the Rotax has a pretty darn good
TBO on top of that, save the issues with the sprag clutches and kickback.
We've got a long way to go before we're flying ours, due to a 'family
detour' of having a wonderful son to raise, but he's a big-time
prop-head, so I've got a great helper to start into learning.
Chris
Message 7
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Subject: | Re: DOTH Panshanger Thu. 6th |
--> Europa-List message posted by: Bbryanallsop@wmconnect.com
Hi Paddy,
As a representative of the DOTHers across the pond, I can only wish you the
weather that we are enjoying here. Sadly, I am looking forward to my next DOTH
almost as much as my next visit to S-n-F. It was 90 F. there today, but cloudy
at times, and there is a slight chance of rain next Tuesday.
'Wish you were here'. Bryan
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