---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Thu 10/09/03: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 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 _____________________________________ Time: 08:19:44 AM PST US From: "Tsabari Shahar" Subject: Zenith-List: CH601HDS. --> Zenith-List message posted by: "Tsabari Shahar" I wonder if somebody have for sale: Ribs (nose and rear) for HDS wings and or HD/HDS center wing. Best Regards, Shahar Italy

I wonder if somebody have for sale:

Ribs (nose and rear) for HDS wings and or HD/HDS center wing.

Best Regards,

Shahar
Italy

________________________________ Message 2 _____________________________________ Time: 12:03:47 PM PST US Subject: RE: Zenith-List: 601 Early Flight Update From: "Weston, Jim" --> Zenith-List message posted by: "Weston, Jim" 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" 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. == direct advertising on the Matronics Forums. == http://www.matronics.com/trouble-report == == ________________________________ Message 3 _____________________________________ Time: 02:33:59 PM PST US From: "Dave Austin" Subject: Re: Zenith-List: 601 Early Flight Update --> Zenith-List message posted by: "Dave Austin" 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 _____________________________________ Time: 03:15:10 PM PST US From: "Frank Jones" Subject: RE: Zenith-List: 601 Early Flight Update --> Zenith-List message posted by: "Frank Jones" 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