Today's Message Index:
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1. 02:52 AM - (ctsmallwood)
2. 03:44 AM - Vne speed (=?UTF-8?Q?R=C3=A9mi_Guerner?=)
3. 06:07 AM - Re: Vne Speed (josok)
4. 07:56 AM - Re: Vne Speed (Steve Pitt)
5. 08:15 AM - Re: (nigel charles)
6. 10:50 AM - Re: Vne Speed ()
7. 10:50 AM - Re: Vne Speed (Fred Klein)
8. 11:58 AM - Re: Vne Speed (Tim Ward)
9. 01:30 PM - Re: Vne Speed (Tony Krzyzewski)
10. 03:42 PM - Re: Vne Speed (Jan de Jong)
Message 1
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Hi All
2 points please
Anyone in the Leicester area, with a Mono, Help please
The guy who built my trailer for ( Tri- G-DEBR) is building one for a
Scottish
Mono owner ( fully covered) and he would like to check a Mono out.
I am looking to Borrow a VSWR meter to check my Europa ariel
I will organize if anyone can help
Please contact
ctsmallwood@onetel.com
Tel. 01773 570329
108 Heage Rd
Ripley
Derby
DE53GH
Message 2
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Hello all,
Some additional info on this subject :
FAR 23, paragraph 1323, states that the airspeed error, i.e. difference between
IAS (indicated airspeed) and CAS (corrected airspeed) should not be higher
than 3% or 5 knots whichever is greater. That means that CAS and IAS are very
close to eachother. So, provided that the Europa pitot system is close to this
requirement, you can safely rely on the airspeed indicator to avoid exceeding
the speed limitations.
Remi Guerner
F-PGKL
Message 3
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Hi All,
OK, interesting discussion to start of with. Appreciated that Vne should never
be exceeded, has there ever been structural damage caused by over speeding to
a Europa? Or to make the question even wider, has there ever been damage to an
Europa excluding take-offs and landings?
Not that i intend to over speed, but it would be nice to know how sturdy this ship
is.
Kind Regards,
Jos Okhuijsen
Visit - www.EuropaOwners.org
Message 4
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Jos
I did ask Andy about the wing strength and VNE when in Florida this year. We
were discussing some of the speeds that the Americans were reaching with
tail winds and at high level. I am sure that he said that the wing had been
designed to somewhere around 300 mph so that any of the Americans flying
high and fast were still within the limits of the design (without getting
too technical).
I believe him and was reassured that exceeding VNE would not rip the wings
off (not that I would want to go that way).
Regards
Steve
Message 5
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If you are a member of the Europa Club you can borrow a VSWR meter from
the club.
Nigel Charles
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of ctsmallwood
Sent: 14 December 2006 11:34
Subject: Europa-List:
Hi All
2 points please
Anyone in the Leicester area, with a Mono, Help please
The guy who built my trailer for ( Tri- G-DEBR) is building one for a
Scottish
Mono owner ( fully covered) and he would like to check a Mono out.
I am looking to Borrow a VSWR meter to check my Europa ariel
I will organize if anyone can help
Please contact
ctsmallwood@onetel.com
Tel. 01773 570329
108 Heage Rd
Ripley
Derby
DE53GH
Message 6
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As far ab breaking a Europa in flight:
My partner designed a short wing Europa in X-Plane.
One thing that was a real eye opener was looking at stress lines seeing
just how much the tips of the wings get loaded negative (large twist
forces) with the flaps down if you go not much faster than flap limit
speed.
My bet is the wing would fail and the flaps would be in perfect shape.
Ron Parigoris
Message 7
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Hi All,
Apropos the questions posed by Jos, Alex Bowman reported an occasion w/
his 130 hp Honda powered XS mono w/ Airmaster prop when his throttle
linkage parted while cruising at 2500 ft ASL during the summer in
British Columbia. The throttle was spring-loaded to go to full power
(rather than idle in such an event); Alex observed an IAS in excess of
200 mph in a climb prior to going to fine pitch and eventually shutting
down for an uneventful dead stick landing. Alex was carrying a 200 lb
passenger at the time with about 3/4 fuel. I'm uncertain of the
duration of this high speed, but I believe it was more than just an
instant and less than a minute. With the heavier engine, Alex's plane
is approved by Canadian authorities for a MTOW of 1500 lb. There was no
visible structural damage as a consequence nor is any suspected. Though
one may question the extra horses and high MTOW for the Europa, for
myself, I am content that Alex's experience and knowledge gained during
his career as a test pilot for the RCAF were adequate guides for his
choices & configuration.
Fred
A194
On Thursday, December 14, 2006, at 06:04 AM, josok wrote:
>
> Hi All,
> OK, interesting discussion to start of with. Appreciated that Vne
> should never be exceeded, has there ever been structural damage caused
> by over speeding to a Europa? Or to make the question even wider, has
> there ever been damage to an Europa excluding take-offs and landings?
> Not that i intend to over speed, but it would be nice to know how
> sturdy this ship is.
>
> Kind Regards,
>
> Jos Okhuijsen
Message 8
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During Flight Testing and flutter tests I took my Monowheeel Classic to
184kts (Vne + 10%) IAS and did the flutter tests. Managed to do all controls
in one attempt from 10000ft. Came out of the dive very slowly at 1000ft. All
held together perfectly. No flutter, thank god.
Tim
Tim Ward
12 Waiwetu Street,
Fendalton,
Christchurch, 8052
New Zealand
Ph +64 3 3515166
Mobile 021 0640221
ward.t@xtra.co.nz
----- Original Message -----
From: "Steve Pitt" <steven.pitt2@ntlworld.com>
Sent: Friday, December 15, 2006 4:54 AM
Subject: Re: Europa-List: Vne Speed
> <steven.pitt2@ntlworld.com>
>
> Jos
> I did ask Andy about the wing strength and VNE when in Florida this year.
> We were discussing some of the speeds that the Americans were reaching
> with tail winds and at high level. I am sure that he said that the wing
> had been designed to somewhere around 300 mph so that any of the Americans
> flying high and fast were still within the limits of the design (without
> getting too technical).
> I believe him and was reassured that exceeding VNE would not rip the wings
> off (not that I would want to go that way).
> Regards
> Steve
>
>
>
Message 9
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>>> OK, interesting discussion to start of with. Appreciated that Vne
should never be exceeded, has there ever been structural damage caused
by over speeding to a Europa? Or to make the question even wider, has
there ever been damage to an Europa excluding take-offs and landings?
Not that i intend to over speed, but it would be nice to know how sturdy
this ship is.
During the initial testing of the Airmaster prop the PFA requested a
vibration analysis report of a rapid throttle backoff at Vne+10% as
another (unnamed) constant speed prop had shown excessive vibration when
the same test was performed as speeds less than Vne. I did the rapid
throttle backoff test at 7000 feet and ZK-UBD felt like it was running
on rails at 185KIAS. When I got down we found that the vibration sensor
head had failed so I had to go back up and repeat the process!
Tony
Message 10
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What made me wonder re Vne and CAS vs. TAS is:
http://www.auf.asn.au/groundschool/flutter.html
Jan de Jong
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