---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Fri 12/10/10: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:39 AM - weight amd balance (Bill Flick) 2. 05:35 PM - Re: weight amd balance (Wingrider) 3. 09:26 PM - Upgrades or lack there of! (Afterfxllc@aol.com) 4. 10:08 PM - Re: Upgrades or lack there of! (Afterfxllc@aol.com) 5. 11:15 PM - Re: Re: Upgrades or lack there of! (Peter Chapman) ________________________________ Message 1 _____________________________________ Time: 06:39:19 AM PST US From: "Bill Flick" Subject: Zenith-List: weight amd balance hello anyone useing header tank in 601 hds with corvair engine? i have wing tanks and also a header tank but wonder if the corvair eng and header tank will make it hard to get wt and bal without adding wt or something. any comments appreciated. thanks ralph ________________________________ Message 2 _____________________________________ Time: 05:35:34 PM PST US Subject: Zenith-List: Re: weight amd balance From: "Wingrider" I have an HDS with the Zenith 10 gal wing tanks an 8 gal header tank and Corvair engine. No problem staying within the CG envelope. The forward CG is slightly below the minimum when calculated with a 170# pilot but I don't weigh 170. My battery is mounted on the firewall but at some point I will probably move it behind the passenger seat which will improve the W&B. I read where someone stated the HDS glides like a well thrown man hole cover and after 20 hours phase 1 time I have to agree. -------- Rich Whittington Tullahoma, TN Zenith 601HDS Under Construction Read this topic online here: http://forums.matronics.com/viewtopic.php?p=322892#322892 ________________________________ Message 3 _____________________________________ Time: 09:26:03 PM PST US From: Afterfxllc@aol.com Subject: Zenith-List: Upgrades or lack there of! As many of you know I have been doing upgrades for the past year and have lost count at this point. But what is the point of doing the upgrade yourself if you are not skilled enough to do it? After what I have seen between the aircraft that were brought in to the shop before the upgrade and one that was brought in after the upgrade I would venture to say the later would have been safer without the upgrade. I will be posting photos each day with a caption of what is wrong and how to spot it for buyers of a flying upgraded 601 XL-B. These photos aren't being posted to embarrass anyone but to merely show what could be the next wave of aircraft that should be safer only to be worse off with the upgrade being installed incorrectly. The first photo is of the rivets that were bucked incorrectly and will need to be replaced. Not only were they done incorrectly but some of the old rivets are still in the holes that were drilled wrong. Some of these rivet heads have a gap between them and the aluminum. ________________________________ Message 4 _____________________________________ Time: 10:08:17 PM PST US From: Afterfxllc@aol.com Subject: Zenith-List: Re: Upgrades or lack there of! Here is a link to all the photos... http://www.facebook.com/album.php?aid=39343&id=100000256688371&l=3ecaba3433 They are on face book so you will need a face book profile I think. I would post them to Zenith Aero but it takes too long. Jeff In a message dated 12/11/2010 12:22:04 A.M. Eastern Standard Time, Afterfxllc@aol.com writes: As many of you know I have been doing upgrades for the past year and have lost count at this point. But what is the point of doing the upgrade yourself if you are not skilled enough to do it? After what I have seen between the aircraft that were brought in to the shop before the upgrade and one that was brought in after the upgrade I would venture to say the later would have been safer without the upgrade. I will be posting photos each day with a caption of what is wrong and how to spot it for buyers of a flying upgraded 601 XL-B. These photos aren't being posted to embarrass anyone but to merely show what could be the next wave of aircraft that should be safer only to be worse off with the upgrade being installed incorrectly. The first photo is of the rivets that were bucked incorrectly and will need to be replaced. Not only were they done incorrectly but some of the old rivets are still in the holes that were drilled wrong. Some of these rivet heads have a gap between them and the aluminum. ________________________________ Message 5 _____________________________________ Time: 11:15:06 PM PST US From: Peter Chapman Subject: Re: Zenith-List: Re: Upgrades or lack there of! At 01:05 11-12-10, you wrote: >Here is a link to all the photos... >http://www.facebook.com/album.php?aid=39343&id=100000256688371&l=3ecaba3433 Quite the variety of issues there. I particularly like the control system nicopress with just 1 crimp mark on it. Even in today's economy, that's not the way to cut back. There are parts misaligned, rivets of the wrong length, holes in the wrong places, jaggedly cut pieces, rivets missing, even rivets half way out the edge of some new reinforcement piece. Also all those dings in the spar cap angles. Even for those errors that really don't make much significant difference in strength or fatigue life, it looks sloppy. Some issues are a bit subtle though, if one doesn't know the 601 XL mods well. (Like me.) If you got around to it some time, a few brief comments added to the photos would help the less experienced understand those kinds of photos better. Good stuff to learn from in any case. Peter Chapman Toronto, ON 601 HDS / 912 / C-GZDC ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message zenith-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Zenith-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/zenith-list Browse Digests http://www.matronics.com/digest/zenith-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.