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richard collings
Joined: 08 Jul 2011
Posts: 73
Location: warwickshire england
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 Posted: Tue Aug 07, 2012 11:34 am Post subject: Europa XS Trigear G-CGZV Update |
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Andy Draper has now completed the test flying and conducted a full flight test all is now OK and I am waiting for the Permit to fly.
We did have a lot of trouble calibrating the ASI,the problem was traced to the static probe, my original had only 2 holes in the plastic end where as the drawing shows 4. My thanks to Ian Rickard for having a spare which once fitted reduced the error to +2 kts at 60 IAS from 2.5 and -3 kts at 120 IAS from -6 kts.
We also have had a lot of trouble setting the stall Warner, its fine in the air and we have set it up to sound about 8kts before the stall, however it comes on in the hanger on its own. I reached a decision that we were never going to get the stall Warner to work properly so fitted stall strips as per the "Owners Manual", we now have a very predictable stall with buffet about 2-3 knots before. Has anyone else experienced this problem?
The only other thing we had to do was reduce the max cause pitch setting on the Woodcomp SR3000 prop so as to attain the min climb performance of 300ft/min required by the LAA.
I have bought a covered trailer to store ZV in which means that I now have a purpose built open Tri-gear trailer for sale. its in good order freshly painted and serviced anyone in the UK interested?
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g-iani(at)ntlworld.com
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| Posted: Wed Aug 08, 2012 12:18 am Post subject: Europa XS Trigear G-CGZV Update |
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Richard
Congratulations on getting the testing finished.
The Europa stall warner does have its idiosyncrasies. It will “bleat” at you taxing down wind, parked tail to wind, gusty day and in the hanger with the doors open etc. Personally I have it connected after the master switch so avoiding the hanger problem. In general it works well and my definition of a tidy landing is when the wheel touch on velvet and the stall warner goes off at exactly the same time.
The stall strips do help define the stall, seem to offer no performance penalty and are worth putting on.
Ian Rickard G-IANI XS Trigear, 300hours
Europa Club Mods Specialist
e-mail g-iani(at)ntlworld.com
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Richard Collings
Sent: 06 August 2012 21:57
To: Europa-List(at)Matronics.Com
Subject: Europa XS Trigear G-CGZV Update
Andy Draper has now completed the test flying and conducted a full flight test all is now OK and I am waiting for the Permit to fly.
We did have a lot of trouble calibrating the ASI,the problem was traced to the static probe, my original had only 2 holes in the plastic end where as the drawing shows 4. My thanks to Ian Rickard for having a spare which once fitted reduced the error to +2 kts at 60 IAS from 2.5 and -3 kts at 120 IAS from -6 kts.
We also have had a lot of trouble setting the stall Warner, its fine in the air and we have set it up to sound about 8kts before the stall, however it comes on in the hanger on its own. I reached a decision that we were never going to get the stall Warner to work properly so fitted stall strips as per the "Owners Manual", we now have a very predictable stall with buffet about 2-3 knots before. Has anyone else experienced this problem?
The only other thing we had to do was reduce the max cause pitch setting on the Woodcomp SR3000 prop so as to attain the min climb performance of 300ft/min required by the LAA.
I have bought a covered trailer to store ZV in which means that I now have a purpose built open Tri-gear trailer for sale. its in good order freshly painted and serviced anyone in the UK interested?
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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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Mark Burton
Joined: 10 Jan 2006
Posts: 74
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| Posted: Wed Aug 08, 2012 6:56 am Post subject: Re: Europa XS Trigear G-CGZV Update |
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Hi Ian,
> The stall strips do help define the stall, seem to offer no performance penalty and are worth putting on.
True, but it's worth remembering that if the aircraft is vibrating a lot (due to the engine running very roughly), the pre-stall buffet is quite likely to be undetectable.
Having been in that situation (engine running so roughly as to make continued flight impossible), I am pretty sure that if the speed had decreased sufficiently for the stall strips to become effective, the first thing I would have noticed was the wing dropping.
Even with the stall strips fitted, the speed margin between buffet and stall on a Europa can be uncomfortably small. It's all very well doing a few stalls at height in an LAA flight test and happily noting down that there's 3kt (or whatever) buffet margin but in a real engine failure situation the pilot is under real pressure and that small margin is likely to come and go without them noticing.
Cheers,
Mark
| | - 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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g-iani(at)ntlworld.com
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| Posted: Thu Aug 09, 2012 1:02 am Post subject: Europa XS Trigear G-CGZV Update |
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Mark
I agree entirely. You were too polite to mention a good product for
avoiding this problem.
As David Joyce has said eloquently in this month's "Light Aviation" (August
2012) the SmartASS is a good solution to this problem.
Ian Rickard G-IANI XS Trigear, 300hours
Europa Club Mods Specialist
e-mail g-iani(at)ntlworld.com
| | - 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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