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MG wing spar - mono gear pushrod: design change?

 
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peterz(at)zutrasoft.com
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PostPosted: Fri Dec 27, 2019 6:42 am    Post subject: MG wing spar - mono gear pushrod: design change? Reply with quote

As was encountered by some US builders, the thicker MG spar mod interferes with the mono's flap drive tube.

Now that the MG wings have been approved in Britain, has the factory created a new tube shape which accommodates the thicker spars? If so, what might the part number and ballpark price be?


Many thanks,

Pete Smile

C-GNPZ (#120) flying

A239 still a pile of parts with both wings


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churchy



Joined: 04 Nov 2011
Posts: 48

PostPosted: Fri Dec 27, 2019 7:00 am    Post subject: MG wing spar - mono gear pushrod: design change? Reply with quote

Hi Pete

I have the first of those parts. It was roughly the same price as the original part (about $150) and in theory is the same part number as it now replaces the original part. However, two notes of caution:

1. I haven’t fitted it all together to be sure that the new geometry actually operates the flaps and clears the spar.

2. Europa told me it was being hand produced from a drawing by a subcontractor. There were shall we say, a few delays and confused messages, in actually extracting the final part from Europa.

Kind regards
Richard

Sent from my iPhone

Quote:
On 27 Dec 2019, at 14:40, Peter Zutrauen <peterz(at)zutrasoft.com> wrote:

As was encountered by some US builders, the thicker MG spar mod interferes with the mono's flap drive tube.
Now that the MG wings have been approved in Britain, has the factory created a new tube shape which accommodates the thicker spars? If so, what might the part number and ballpark price be?

Many thanks,
Pete Smile
C-GNPZ (#120) flying
A239 still a pile of parts with both wings



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rparigoris



Joined: 24 Nov 2009
Posts: 780

PostPosted: Sat Dec 28, 2019 8:39 am    Post subject: Re: MG wing spar - mono gear pushrod: design change? Reply with quote

Hi Pete
I have an XS Mono A-265. It has an accelerated cockpit module. I can assure you that it's not possible to have a solid pushrod work with both wings on my bird. I dealt with problem by installing a cable:
http://www.europaowners.org/main.php?g2_itemId=386633
In addition due to location my fuel tank is situated it's not possible to fit the larger spar. The fuel tank would need to be ripped out and re-positioned to use full size spar. I will deal with that by making a new spar mold to fit my bird that is a tiny bit narrower. Ron P.


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rparigoris



Joined: 24 Nov 2009
Posts: 780

PostPosted: Sat Dec 28, 2019 8:51 am    Post subject: Re: MG wing spar - mono gear pushrod: design change? Reply with quote

Hi Pete Just to clarify, spar needs to be a little narrower in height, not width.
Ron P.


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peterz(at)zutrasoft.com
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PostPosted: Sat Dec 28, 2019 6:23 pm    Post subject: MG wing spar - mono gear pushrod: design change? Reply with quote

Thx Ron for the detailed description.

I would also like to hear how the factory has done it since their approval of the long wings. As per Richard’s reply, the factory does have a new pushrod, and i wonder how they solved the interference issues you have described.

Pity they don’t monitor this group.

Cheers
Pete

First flights of re-badged C-GNPZ today. What a fun machine!

Quote:
On Dec 28, 2019, at 11:46 AM, rparigoris <rparigor(at)hotmail.com> wrote:



Hi Pete
I have an XS Mono A-265. It has an accelerated cockpit module. I can assure you that it's not possible to have a solid pushrod work with both wings on my bird. I dealt with problem by installing a cable:
http://www.europaowners.org/main.php?g2_itemId=386633
In addition due to location my fuel tank is situated it's not possible to fit the larger spar. The fuel tank would need to be ripped out and re-positioned to use full size spar. I will deal with that by making a new spar mold to fit my bird that is a tiny bit narrower. Ron P.




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=494072#494072








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h&jeuropa



Joined: 07 Nov 2006
Posts: 634

PostPosted: Sun Jan 05, 2020 10:12 am    Post subject: Re: MG wing spar - mono gear pushrod: design change? Reply with quote

Pete,

We replaced the FL20 tube with a push pull cable a year ago. The cable gives clearance for the taller MG spars. Actually the cable works better than the tube since our tube rubbed in the fuselage.

Jim & Heather


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