Replies to This Discussion

Permalink Reply by Matt Heintz on November 26, 2009 at 6:42am

Martin,
Yes, these parts will be available. You will need to be specific when ordering them.

Permalink Reply by Martin Pohl on November 26, 2009 at 8:13am

Thx for your very quick reply, Mat! By the way: I am very much impressed about virtually everything concerning the ongoing upgrade for our CH601XLs. Congratulations and a very big thank you!!!

Permalink Reply by Matt Heintz on November 26, 2009 at 2:43pm

Martin,
Thanks.

Permalink Reply by Joris Haentjens on November 26, 2009 at 8:30am

Hi Mathieu,
Will there be updated drawings available for the 650 in the future? (drawing set that includes all the the updates from 6-ZU-1...4)
I am scratch building the 650, just started
Thanks,
Joris

Permalink Reply by Matt Heintz on November 26, 2009 at 2:41pm

Joris,
Yes, we will update the 650 drawings to include the upgrade.

Permalink Reply by Theodore A Ralph on November 26, 2009 at 11:11am

I have been studying the updated draft drawings and it seems there may be a labeling error on page 6-ZU-1 related to parts 6-ZU-1-4 and 6-ZU-1-5 in the exploded view.

Permalink Reply by Matt Heintz on November 26, 2009 at 2:42pm

Theodore,
Thanks, I will pass on the info.

Permalink Reply by Jim Belcher on November 28, 2009 at 10:12am

This is a follow-on to Theodore's post, as I have a few related questions. Like him, I have been reviewing the drawings, determining what I must do. I may have found some gotchas, which I enumerate below. The first may be the same one he found:

Dwg 6-ZU-1

At the lower left. It looks like the callout in the box for 6-ZU-1-4 possibly should be 6-ZU-1-5. 6-ZU-1-4 gets referenced both as a vertical rib angle, and as a bottom angle. 6-ZU-1-5 is not referenced.

Dwg 6-ZU-2

6-ZU-2-5 The part description calls out a need for four shims. However, it looks from the end-on illustration at the right of the page as though shims may be required under 6-ZU-2-4 on both the front and back of the assembly. If true, then eight of these shims are needed, and an additional call-out on the front of the end view may be needed.

The callout in the middle of the dwg for 6-ZU-2-6 says in part: “...and add 5 degrees twist.” Maybe it's clear to everyone but me, but I'm not sure where this twist is. Is in in the inclination of the part fore and aft, left to right, or twisting the part itself anticlockwise or clockwise? Or ..?

Dwg 6-ZU-3

Callout at the bottom of the drawing for part 6-ZU-3-6 says only three of the seat angles are required. The orthogonal view near the top center of the drawing appears to show three installed under the right seat. I'd bet there are also three under the left seat. Does this raise the count of these parts to 6?

Dwg 6-ZU-4

Callout for aileron gussets at top center of dwg shows part #s 65W-5 and 65W-6. I'm not aware of the referenced drawings being in the XL dwg package. I assume these are in the 650 dwg package. How will this information be made available to XL builders/owners?

I'm still digging.....thanks for sharing the drawings with us prior to their final release. At least we have some idea which way to jump.

Permalink Reply by Matt Archer on November 28, 2009 at 10:14pm

I have a concern (or don't quite understand) the addtion of the Bottom Skin Doubler (6-ZU-2-9).Not sure how this will fit under the 6B10-2 channel. Is the idea of this to doubler allow one to move the hole forward about .125, and will you just slip it between the bottom skin and the channel after pulling the rivets in this area?

Cheers
Matt

Permalink Reply by Matt Heintz on November 30, 2009 at 3:31pm

Matt,
The Bottom Skin Doubler 6-ZU-2-9 is added as the front spar rivet line on the floor will have to be moved forward slightly due to the 0.063 front bottom angle 6-ZU-2-8. So the oversized holes in the floor will be sandwiched.
Yes, 6-ZU-2-9 will go under 6B10-2 channel.

Permalink Reply by Matt Heintz on November 30, 2009 at 3:26pm

Jim,
Thanks for the info, which we will be addressing the final drawings.

Permalink Reply by Mike Armstead on November 26, 2009 at 5:37pm

Is there any long term corrosion concerns with using stainless rivets in the aluminum in the areas that specify SS rivets? Would it be acceptable to use solid rivets instead if someone chooses to?

Also I was considering making a new center spar out of .063 as some other people had mentioned. Should it be made out of .063 or.090? The current one will be .040+.063.

If either of these are acceptable options would it be possible for Zenith to put notes on the final drawings so people can say they completed the modifications per the drawings.

Thanks,
Mike

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