 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
grahamsingleton(at)btinte
Guest
|
 Posted: Thu Sep 09, 2010 3:09 pm Post subject: Europa wing section |
 |
|
Hi Guys
I found a couple of files which just might give you accurate wing sections, One is a *.dwg (Auto cad I think) the other a *.dxf. drawing exchange file. I no longer have the software to open these so would someone try and let me know if it works?
The last one should give a 47" print out onto several sheets
Graham
From: Christoph Both <christoph.both(at)acadiau.ca>
To: "europa-list(at)matronics.com" <europa-list(at)matronics.com>
Sent: Tuesday, 17 August, 2010 13:24:07
Subject: RE: Stall spin characteristics
Hello,
Where would one find the digital collection of the profile?
Thanks,
Christoph Both
#223 Classic Wolfville Nova Scotia, Canada
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of GRAHAM SINGLETON
Sent: Tuesday, August 03, 2010 1:08 PM
To: europa-list(at)matronics.com
Subject: Re: Stall spin characteristics
Bill
the stall characteristics are dependent on the quality and accuracy of the leading edge. LE is relatively small radius and its all too easy to sand the bump off with the effects you mention. In UK we are told to use stall strips or a stall warner.
Stall strips are recommended and if carefully adjusted will calm the stall. Get hold of the digital print out of the section and make templates every foot or so spanwise. Then spend hours and hours getting the section right. There is a tiny bump under the LE which is important but hard to spot.
Graham
From: William McClellan <wilwood(at)earthlink.net>
To: "Europa-List(at)matronics.com" <Europa-List(at)matronics.com>
Sent: Tuesday, 3 August, 2010 16:50:07
Subject: Europa-List: Stall spin characteristics
--> Europa-List message posted by: William McClellan <wilwood(at)earthlink.net (wilwood(at)earthlink.net)>
I understand that the Europa is very prone to abruptly dropping a wing, trying to enter a spin, when stalled with full flaps in the landing configuration. On the other hand, in the clean, unflapped configuration the stall is very benign. I wonder if this is true of all Europa's or only some depending on the particulars of that builders end product and possible modifications. I have nearly 1000 hrs in a Citabria with very much of it flying into short "backcountry" dirt strips requiring significant STOL characteristics. I don't have flaps so regularly use severe straight and banked slips. The Citabria is a "dirty" plane compared to the "very clean" Europa so I believe the use of severe slips in the Europa is never warranted. My experience with very clean planes, I also have 1000 hours in my high performance glider and since the air brakes work so well, severe slipping is not needed...though some less than ultra clean gliders, ie, trainers, can make use of severe slipping!
. It seems likely that Cliff Shaw's accident was a result of this abrupt spin stall characteristic in landing configuration. I have a rule (though not unique), "never skid a turn", keeping a nice margin above stall. It seems that the Europa (and probably all super clean planes, for instance the Cirrus), have a propensity to severe stall spin in landing configuration. I understand that many Europa pilots land with an airspeed up to 65 but this uses a greater landing distance considering the stall speed is in the 40's. Europa's original touted mission was short field, pasture strips. For those who often use this short field capability, I would like to know the particulars to make the Europa perform safely in this manner. Not having piloted a Europa, but am close to finishing my build, I am curious to these questions. href="http://www.matronics.com/Navigator?Europa-List" target="_blank">p; -Matt Dralle, Libution" =======
http://www.m             -
 --> http://forums.matronics.com[/b]====================[/b]nbsp;     Â                        Â&nb=  --> http://www.matronics.com/co======================[/b] [/quote]
¦·›~‰í²,Þg(–ŠÓM4ÓGÚqü¢êâz¹ÞÁÊ.®'«8^ê襢â²Ñ&j)E¢»¦K¶ŒjÚèž',.+-溷¬5«â�«h®Ú®Œ,{azf§È¸¬¶ëb–+bzË.r¬.+-RÒ¹»®*mŠ‰·!Š÷’yªÜ„:0žZw°ÚÈèÂÇ‚…«E†‹h²«y©Ýšç!šç!šŠÞ¡ç†Ûiÿü0Âf®‰ârÇ(›óZ¾(¶ŠÄºº)h¸¬¶m§ÿðà š¶º'‰Ë¢oÍjø jÚ+ê襢â²ßÚ
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Europa-List |
|
| Description: |
|
Download |
| Filename: |
Europa_aerofoil.dwg |
| Filesize: |
58.24 KB |
| Downloaded: |
252 Time(s) |
| Description: |
|
Download |
| Filename: |
Europa_aerofoil.dxf |
| Filesize: |
103.28 KB |
| Downloaded: |
227 Time(s) |
| Description: |
|
Download |
| Filename: |
aerofoil47in.dwg |
| Filesize: |
66.3 KB |
| Downloaded: |
221 Time(s) |
|
|
| Back to top |
|
 |
g-iani(at)ntlworld.com
Guest
|
| Posted: Fri Sep 10, 2010 1:12 am Post subject: Europa wing section |
|
|
Graham
All three drawings are OK (not corrupted) and open correctly in AutoCad Lite.
It might be worth all three are identical except that the “47” is set up to print to that particular size.
Ian Rickard G-IANI XS Trigear, 300hours
Europa Club Mods Specialist
e-mail g-iani(at)ntlworld.com
[quote][b]
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Europa-List |
|
|
|
| Back to top |
|
|
grahamsingleton(at)btinte
Guest
|
| Posted: Fri Sep 10, 2010 2:54 am Post subject: Europa wing section |
|
|
Thanks Ian,
When we filled and sanded Charlie's and Colin's Classic wings I printed templates for the leading edge at stations every foot or so, then spent many hours (they did, I did it on Tony Higgins' wings when Tony Clarry owned them) AFAIK all three Classics have excellent performance and non violent stall characteristics, (Tony?)
The full section will also show you the slight reflex on the trailing edge which the Plans profile does not.
Graham
From: G-IANI <g-iani(at)ntlworld.com>
To: europa-list(at)matronics.com
Sent: Friday, 10 September, 2010 10:08:18
Subject: RE: Europa wing section
Graham
All three drawings are OK (not corrupted) and open correctly in AutoCad Lite.
It might be worth all three are identical except that the “47” is set up to print to that particular size.
Ian Rickard G-IANI XS Trigear, 300hours
Europa Club Mods Specialist
e-mail g-iani(at)ntlworld.com
[quote]http://www.matronics.com/Navigator?Europa-Listllow" target="_blank" href="http://www.matronics.com/contribution">http========================
[b]
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Europa-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
