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Mallard
Joined: 22 Oct 2019
Posts: 52
Location: Ireland
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 Posted: Thu Aug 20, 2020 3:58 pm Post subject: Stall Warner |
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Hello everyone,
I'm a new Europa XS owner and even though my aircraft was built to a very high level of quality, I’ve found a problem on the first flight which could some day mean the difference between life and death!
The ‘Stall Warner’ doesn’t go off when the aircraft is stalled in any configuration i.e. power on or power off.
Before the flight, while doing a walk-around I tested the 'Stall Warner' by sucking on it and it worked by sounding a very audible noise in the cockpit.
Can anyone advise why it isn’t sounding in flight when an actual stall takes place? Is there any configuration of the system necessary to set it up correctly? If there is, does anyone know how it should be carried out?
Thank you in anticipation
James from
Ireland
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dpark748(at)me.com
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| Posted: Thu Aug 20, 2020 5:17 pm Post subject: Stall Warner |
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There will be a sensor in the cockpit somewhere with a tube leading from the hole in the leading edge of the wing.
There is wiring from the sensor to the warning horn. The sensor is calibrated while in flight best to extend tube and wiring so you can get your passenger to calibrate it at set speed above stall.
Dave
Dave Park
| Quote: | On 21 Aug 2020, at 01:02, James McErlain <james(at)kingdom.ie> wrote:

Hello everyone,
I'm a new Europa XS owner and even though my aircraft was built to a very high level of quality, I’ve found a problem on the first flight which could some day mean the difference between life and death!
The ‘Stall Warner’ doesn’t go off when the aircraft is stalled in any configuration i.e. power on or power off.
Before the flight, while doing a walk-around I tested the 'Stall Warner' by sucking on it and it worked by sounding a very audible noise in the cockpit.
Can anyone advise why it isn’t sounding in flight when an actual stall takes place? Is there any configuration of the system necessary to set it up correctly? If there is, does anyone know how it should be carried out?
Thank you in anticipation
James from
Ireland
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| | - 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 |
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rparigoris
Joined: 24 Nov 2009
Posts: 796
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| Posted: Thu Aug 20, 2020 6:45 pm Post subject: Re: Stall Warner |
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Hi James Go onto Europa Aircraft website and download Modification 61. You will need to set up an account that's free. Make sure plumbing has no leaks or restrictions and follow set up procedure. If it were I and couldn't find anything amiss, try a new pressure switch. Ron P.
| | - 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:
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cakeykev(at)gmail.com
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| Posted: Thu Aug 20, 2020 10:13 pm Post subject: Stall Warner |
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Smartass better than a stall Warner in my opinion. I have no connection to the company.
https://smartavionics.co.uk/prod-smartass.html
Kevin Challis
G ODJG
| Quote: | On 21 Aug 2020, at 01:01, James McErlain <james(at)kingdom.ie> wrote:
--> Europa-List message posted by: James McErlain <james(at)kingdom.ie>
Hello everyone,
I'm a new Europa XS owner and even though my aircraft was built to a very high level of quality, I’ve found a problem on the first flight which could some day mean the difference between life and death!
The ‘Stall Warner’ doesn’t go off when the aircraft is stalled in any configuration i.e. power on or power off.
Before the flight, while doing a walk-around I tested the 'Stall Warner' by sucking on it and it worked by sounding a very audible noise in the cockpit.
Can anyone advise why it isn’t sounding in flight when an actual stall takes place? Is there any configuration of the system necessary to set it up correctly? If there is, does anyone know how it should be carried out?
Thank you in anticipation
James from
Ireland
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| | - 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:
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pjeffers(at)talktalk.net
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| Posted: Thu Aug 20, 2020 10:48 pm Post subject: Stall Warner |
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Hi James,
Sorry to hear you are having stall warner problems. It sounds as though, as per another reply you have received, that adjustment as per Mod 61 instructions is likely to be your best solution.
On the assumption that the original owner had this correctly set up then you are probably looking for leaks in the plumbing system. One source of leaks can be missing or damaged (perished) 'o' ring seal in the quick connect coupling between wing an fuselage. This source of leaks can also occur on any of the pitot and static connections although this is nothing to do with the stall warner system.
One way or other this fault should not be too difficult to fix.
PS if you have to adjust the pressure switch itself you will find that it is very sensitive and easy to over adjust. Take care.
Pete Jeffers (LAA rep for The Europa Club)
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clivesutton
Joined: 23 Jan 2013
Posts: 187
Location: KENILWORTH
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| Posted: Thu Aug 20, 2020 11:44 pm Post subject: Re: Stall Warner |
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Hello James, welcome to the Europa community!
I've not much to add to the replies you've had so far except to to echo Peter J's remark about how tricky it can be to set the switch sensitivity. The point between not working and working is very fine and can only really be set in flight. I had the same issue on mine at its initial permit testing and after changing the switch (which didn't really help) i found a way to extend the pipework and wiring so that the switch could be easily be set from the P2 position [i put the switch behind the parcel tray moulding and drilled a hole through it to enable a watchmakers screwdriver to go into the switch]. Andy D then flew the aircraft close to 5kt above the stall whilst i adjusted the switch until it sounded. It took a few attempts.
I have the Smartass also - very useful/well worth the investment.
BTW (and it does not try to compete with this bulletin board), there is also a Europa Aircraft Owners group on Facebook that you may find useful.
ATB
Clive Sutton
G-YETI
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Last edited by clivesutton on Fri Aug 21, 2020 2:07 am; edited 1 time in total |
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stranfaer(at)btinternet.c
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| Posted: Fri Aug 21, 2020 1:54 am Post subject: Stall Warner |
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p{margin:0}
[quote]Smart ass is an excellent piece of kit, personally I use the aforementioned and stall strips, works very well
David JoyceThe other one BXGG
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budyerly@msn.com
Joined: 05 Oct 2019
Posts: 287
Location: Florida USA
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| Posted: Sun Sep 06, 2020 10:23 am Post subject: Re: Stall Warner |
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I've attached an old paper to a current document I have for working on second hand purchases and stall spin accidents in experimental aircraft.
It is from notes and early papers I kept at Custom Flight Creations.
It should at least lead you to making an informed decision.
Bud Yerly
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Stall Warning types for the Europa with Evaluation of stall strips.pdf |
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878.11 KB |
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