Today's Message Index:
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1. 08:19 AM - CH601HDS. (Tsabari Shahar)
2. 12:03 PM - Re: 601 Early Flight Update (Weston, Jim)
3. 02:33 PM - Re: 601 Early Flight Update (Dave Austin)
4. 03:15 PM - Re: 601 Early Flight Update (Frank Jones)
Message 1
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--> Zenith-List message posted by: "Tsabari Shahar" <volucer@tin.it>
I wonder if somebody have for sale:
Ribs (nose and rear) for HDS wings and or HD/HDS center wing.
Best Regards,
Shahar
Italy
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<DIV><FONT face"Comic Sans MS" size2>I wonder if somebody have for
sale:</FONT></DIV>
<DIV><FONT face"Comic Sans MS" size2>Ribs (nose and rear) for HDS
wings and or
HD/HDS center wing.</FONT></DIV>
<DIV><FONT face"Comic Sans MS" size2>Best Regards,</FONT></DIV>
<DIV><FONT face"Comic Sans MS"
size2>Shahar<BR>Italy</FONT></DIV></BODY></HTML>
Message 2
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| Subject: | 601 Early Flight Update |
--> Zenith-List message posted by: "Weston, Jim" <Jim.Weston@delta.com>
Frank,
Be extremely careful about what you are planning to do. The forces on
control surfaces can get pretty high, particularly in turbulence or when
maneuvering the plane hard (either for fun or collision avoidance). As
I picture your description, it doesn't sound like there will be nearly
as much material supporting the loads on the stabilizer as the original
design would do (i.e. a washer with a bent tab). Also, if things start
to bend and get sloppy fitting while in flight, you could get flutter of
the stabilizer and elevator. This can be devastating. It's your
experimental airplane, do as you like, but I'd be very careful. It
really isn't that hard to drill out the rivets and fabricate new
brackets, then re-drill.
Good Luck,
Jim Weston
McDonough, Ga.
-----Original Message-----
From: Frank Jones [mailto:fjones@sympatico.ca]
Subject: RE: Zenith-List: 601 Early Flight Update
--> Zenith-List message posted by: "Frank Jones" <fjones@sympatico.ca>
The change to the attach point is pretty easy really, just need to move
the rear holes up 3.7mm. This will involve elongating the holes. I'll
then use a stainless washer with a bent tab (kindof like on a bicycle
wheel) to keep the bolt in position. Should be no need for a doubler.
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Message 3
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| Subject: | Re: 601 Early Flight Update |
--> Zenith-List message posted by: "Dave Austin" <daveaustin2@sprint.ca>
Trouble with your suggestion Jim, is what happens if you don't get the
position right on the second try?
The amount of hole elongation as suggested is really quite small. I know.
I've done it. As long as the 3/16 bolts are fully torqued up, I believe it
safe. Once the correct position is found so that the elevator trim tab is
neutral in level, cruise speed flight, (minimum drag), by all means put on a
doubler to get rid of the elongated hole.
Dave Austin 601HDS - 912
Message 4
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| Subject: | 601 Early Flight Update |
--> Zenith-List message posted by: "Frank Jones" <fjones@sympatico.ca>
Jim, Dave,
These responses have been really helpful. Thanks. I have come to exactly
the same conclusion as you Dave. Drill out the elongation. Use the tab
type washer I suggested earlier. Ensure bolt is securely torqued. Try it
out on a short flight. Verify neutral trim at straight and level. Land.
Add a doubler to ensure there is no elongated hole. No need for the
special washer any more.
Frank
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