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zsmith3rd(at)earthlink.ne
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 Posted: Sat Jul 15, 2006 6:44 pm Post subject: 701 Jury Strut question |
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List,
First of all, my ZAC drawings are 4th Edition, 06/2001 (the first CAD version). The "Assembly Manual" is the old typewriter/hand-drawn version.
My drawings show the "one-piece" wing struts. I have the earlier two-piece struts supplied with the kit. So far, no problem...wings are mounted and conform to all the ZAC specs as to left,right, etc.
Assembly manual shows the older method of just bending .500 x .035 tubing around the struts and riveting it to add the JURY Struts.
Drawings (CAD version) shows the four different lengths of tubing required on each wing (tubing was with my kit) but these 7V10-3SP Jury Struts attach to the 7V10-1SP struts via 7V10-5SP and -6SP Jury Strut Brackets. (Not in my kit, no problem....easy to make, the drawings indicate 4130 material, .049 thick).
What is confusing is the drawing showing "detail" of the Jury Strut Brackets, with Jury Struts, attached to the Wing Strut on Sheet 7V10. The Jury Struts appear to have been "swedged" on the ends....and there is "cross-hatching" drawn in the last 20 or 30 mm of the ends of each Jury Strut. What is the deal?
Last item on Page 7V10 is a "Jury Strut Cap" (7V10-7SP).
Best guess is that this is 1/2" wide x 1/4" thick aluminum bar. (It is shown as 12 mm wide x .250" thick, 21 & 40 mm lengths needed)
Is this 7V10-7SP "cap" just stuck into the ends of the 1/2" jury tubing and then flattened with a hammer? Then drill through this for an AN3 bolt? Surely this can't be! Okay, so it is....then the proper name for the item would be Jury Strut Insert.
Appreciate any photos or comments, directions, corrections, or hammer instructions.
Thanks and best regards.....105 degrees today. Paint dries REAL fast in this weather.
Zed/701/R912/still diddling
do not archive
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ch701builder
Joined: 07 Feb 2006
Posts: 119
Location: N38.9947,W105.1305,ALT. 9,100'
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| Posted: Sat Jul 15, 2006 8:00 pm Post subject: 701 Jury Strut question |
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Diddling Zed,
That is the way I also interpret it. I have seen a hardwood used, (not on a Zenith) but I was going to use solid Aluminum for mine.
I am also still waiting to buy some more Aluminum to pound on!!
Keith
N 38.9947
W 105.1305
Alt. 9,100'
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NYTerminat(at)aol.com
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| Posted: Sat Jul 15, 2006 8:59 pm Post subject: 701 Jury Strut question |
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Zed,
I used my vice to squeeze the end of the jury struts. I also epoxied the very end of the strut to keep the strut cap in place. I found that some of them would slide in the jury tube.
Bob Spudis
N701ZX 60 hrs
In a message dated 7/16/2006 12:01:29 A.M. Eastern Daylight Time, Keith.Ashcraft(at)itt.com writes:
| Quote: | Is this 7V10-7SP "cap" just stuck into the ends of the 1/2" jury tubing and then flattened with a hammer? Then drill through this for an AN3 bolt? Surely this can't be! Okay, so it is....then the proper name for the item would be Jury Strut Insert.
Appreciate any photos or comments, directions, corrections, or hammer instructions.
Thanks and best regards.....105 degrees today. Paint dries REAL fast in this weather.
Zed/701/R912/still diddling
do not archive
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graeme(at)coletoolcentre.
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| Posted: Sun Jul 16, 2006 2:58 am Post subject: 701 Jury Strut question |
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I newer plans show a 4 piece jury strut system with solid alloy rectangular bar with rounded corners.
During my rebuild I had to squash the tube slightly to drive the solid alloy up to the required distance.
The mounting bolts go through the tube and the solid .
The brackets are bent out of steel and bolt to the wings instead of a welded lug.
Graeme
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