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From the LAA website

http://www.lightaircraftassociation.co.uk/engineering/engineering_updates.html

It'a a standard aileron with another rib attached where you can see the double row of rivets as extra support for the arm which protrudes forward into the wing with a balance weight on the end. Very n ...

The LAA have started flight testing a 601XL modified with internal aileron mass balances and beefed up spar carry through.
It is fitted with two accelerometers on each wingtip and a gps gizmo data lo ...

Did the Germans test at their max weight of 450kg or higher weights as in UK and US. It could make a difference !

This is pretty much in line with what the LAA in the UK have said. One aircraft is currently being modified with aileron mass balances and a beefing up of the wing spar carry through so they can then ...

From the Zenair Europe website.

http://www.zenairulm.com/News/index_files/Page972.htm

Update of February 26, 2009
Another blow?

Just a week ago, we discovered that at the beginning of Februa ...

Here is a link to the latest Zenair Europe news, includes letter sent to UK owners and the designers reply.

http://www.zenairulm.com/News/index_files/Page958.htm

From the Zenair Europe site it seems the UK grounding could be lifted after some modifications agreed between the LAA and Zenair.

Here is the Zenair Site link and text below

http://www.zenairul ...

This is from the Zenair Europe site

Neither the preliminary accident report nor the Dutch grounding-orders makes reference to the wreckage of PH-4B6. Although for the last three months, Zenair has ...

This is from the Dutch safety board

http://www.safetyboard.nl/publications/dsb/intermediate_warning_accident_with_mla.pdf

Congratulations Mike, good luck with the build.

And a very merry Christmas to one and all from England.

Excellent post Skyguy. Merry Christmas to you and your family.
Happy flying.

None of the UK CH601XLs are microlights, they all have MTOW of 560kg apart from two that appear to be 590kg.
My own XL came from CZAW complete with it's detailed build drawings that have ZENITH AIRCR ...

The reason my posts are all on the same subject is quite simple, I own a Czech 601XL.
An aeroplane that I am extremely fond of, over the years I have had a dozen or more different types but the XL ...

Since the grounding the UK have had their stress engineers and sophisticated computer software working very hard to address the situation. They have come across areas of concern that have been sent to ...

Sorry, no connection whatsoever.

Apologies if I've touched a raw nerve, you may have 100 percent confidence in your XL but a lot of owners that I've talked to do not.

I think that deep down, as much as we love our XLs a lot of us feel there is a problem.
Wings should not fall off aeroplanes, there must be many other types out there with incorrect cable tensions f ...

What do other people think about the grounding, I am not convinced that flutter is the problem.
It would appear that a lot of XLs have now been checked and found to have incorrect control cables yet ...