---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Sun 04/13/03: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:28 AM - Re: Rudder Spar (Carlos Sa) 2. 07:51 AM - Re: Rudder Spar (Scott Laughlin) 3. 07:59 AM - Car Heat (Donald Maziarz) 4. 03:09 PM - Hi all looking for 601 (Noel & Yoshie Simmons) 5. 04:20 PM - Mufflers for Subaru engine (Michel Therrien) 6. 05:23 PM - Re: Mufflers for Subaru engine (Larry McFarland) 7. 05:59 PM - Re: Mufflers for Subaru engine (Michel Therrien) ________________________________ Message 1 _____________________________________ Time: 07:28:26 AM PST US From: Carlos Sa Subject: Re: Zenith-List: Rudder Spar --> Zenith-List message posted by: Carlos Sa Joseph, as Michel has already explained, those angles are "closed", i.e., <90 degrees when measured inside. As for the 3.5 vs 5.5 degrees: I didn't spend much time on it. For one thing, I can't get 0.5 degree precision. Remember, it's not a fighter jet. Regards Carlos > On vertical tail > spar 6T4-4, the plans say the bottom side is bent 5.5 degrees open, but the double > angle 6T5-5 which fits inside the spar looks bent in the direction I would call > 'closed' by 5.5 degrees (resulting in the 84.5 degree bend indicated). ... > Part two of the question. The plans call for the bend at the top of 6T4-4 to be > 3.5 degrees closed. > Joseph Kerr > Reno, NV Post your free ad now! http://personals.yahoo.ca ________________________________ Message 2 _____________________________________ Time: 07:51:26 AM PST US From: "Scott Laughlin" Subject: Re: Zenith-List: Rudder Spar --> Zenith-List message posted by: "Scott Laughlin" Joseph: I am plans-building the 601XL and I feel your pain. I have found many builder's web sites with photos tend to clear up my questions about parts making and assembly. Also, the Zenith web site (www.zenithair.com) has a builder's site that has the new, updated manuals in color that can clear up some of your questions on which way to bend a part. Zenith doesn't say much about the builder's site when they send you the plans but if you call them they will give you the password. I can send you several links I have found if you email me off-line. Also, I have built several parts for the tail section and you can see them on my web site: www.cooknwithgas.com. Good luck, Scott Laughlin 601XL Ser. Num 5074 Omaha, NE www.cooknwithgas.com ----Original Message Follows---- From: "Joe Kerr" Subject: Zenith-List: Rudder Spar --> Zenith-List message posted by: "Joe Kerr" Greetings- Here's my first question to the list after lurking for a year. I just received my 601XL plans and am evaluating scratch building vs kit purchase vs a combination of the two. Perhaps a newbie question, but I can not find the answer in the archives and it did not come to me after studying the plans for a couple days. On vertical tail spar 6T4-4, the plans say the bottom side is bent 5.5 degrees open, but the double angle 6T5-5 which fits inside the spar looks bent in the direction I would call 'closed' by 5.5 degrees (resulting in the 84.5 degree bend indicated). I hate to start thinking the plans are wrong when I am so new at this, so I thought I'd ask. Should the plans say 5.5 degrees closed for the spar bend rather than open? It seems the doubler would then fit inside. Part two of the question. The plans call for the bend at the top of 6T4-4 to be 3.5 degrees closed. If this is the case, does this mean the bend angle of the side would gradually open two degrees starting at the point where the spar doubler ends (approx 900 mm from the bottom of the spar). Of course, if the plans said the top angle should be 5.5 degrees closed rather than 3.5, and the 5.5 degree open bend at the bottom should really be 5.5 degree closed, then it would be a consistent bend angle from top to bottom. So, either the plans are wrong in two places in the first place I looked at closely, or I'm really missing something basic and definitely need the kit with preformed parts. Thanks for any help. Joseph Kerr Reno, NV ________________________________ Message 3 _____________________________________ Time: 07:59:10 AM PST US From: "Donald Maziarz" Subject: Zenith-List: Car Heat --> Zenith-List message posted by: "Donald Maziarz" The information in the email sent by Weston is very useful. The following information is provided based upon an incident that took place last December. A friend was over the Midwest flying his family back to Virginia in his homebuilt (very popular brand kit but not a Zenith). He noticed a worsening reduction in power that he was unable to reverse while flying through a snow storm (so much for weather forecasts). The engine quit. He landed the airplane (in the snow storm with 1/4 mile visibility) in a field a few miles short of the runway at an Air Force base. Everyone was safe and the plane received only minor damage (wheel pants). Upon checking for the cause, he discovered the air filter was surrounded by snow/ice. The application of carb heat put the heated air just behind the air scoop and in front of the air filter. There was insufficient hot air to melt the ice and snow, thus cutting off the air supply. The airplane designer used the same design on all of his designs. Lesson: Route the carb heat supply to be after the air filter. You will find this design on production airplanes. It guarantees a supply of heated air into the carb even if the normal air intake is completely blocked. Don (still thinking of building an XL) Time: 03:36:07 PM PST US From: "Weston & Judy Walker" Subject: Zenith-List: 601XL/3300 Firewall Forward Kit --> Zenith-List message posted by: "Weston & Judy Walker" I am about to purchase a Jabiru 3300 and a firewall forward kit for my 601XL. I just discovered the firewall forward kit that ZAC sells is different from the one Pete sells at Jabiru USA Flight Center. According to Pete, here are the main differences: 1. Prop. ZAC uses Sensenich. Pete supplies GT and claims better speed and climb, better fuel efficiency with GT. 2. Location of oil cooler. ZAC on the side. Jabiru lower center in front of vent; claims better cooling. 3. Cowls. ZAC made by Skyshop, fit on inside of front skins; Jabiru from Jabiru in Australia, fit on outside of front skins. 4. Carb heat. ZAC=92s filter is bypassed when carb heat supplied; Jabiru filters air either way. Does anyone have any good/bad experience with either of these Firewall Forward kits? Any other pointers? Thanks for your thoughts. Weston Walker ________________________________ Message 4 _____________________________________ Time: 03:09:24 PM PST US From: "Noel & Yoshie Simmons" Subject: Zenith-List: Hi all looking for 601 --> Zenith-List message posted by: "Noel & Yoshie Simmons" Hi all, Looking for a 601 un-completed kit for sale. Must be a complete kit. Will look at kits with FWF's too. Noel Noel and Yoshie Simmons Blue Sky Aviation, Inc. "We do builder assistance!" Toll Free: 866-859-0390 info@blueskyaviation.net www.blueskyaviation.net ________________________________ Message 5 _____________________________________ Time: 04:20:53 PM PST US From: Michel Therrien Subject: Zenith-List: Mufflers for Subaru engine --> Zenith-List message posted by: Michel Therrien Hi list, I'm thinking about the exhaust system for my 601 and I have a few questions. 1. How does the Stratus muffler system performs in terms of noise reduction and weight? 2. Does anybody here has another exhaust installation for an EA-81 engine and could share a bit about the design and performance? Thanks! Michel ===== ---------------------------- Michel Therrien CH601-HD http://mthobby.pcperfect.com/ch601 http://www.zenithair.com/bldrlist/profiles/mthobby http://pages.infinit.net/mthobby ________________________________ Message 6 _____________________________________ Time: 05:23:40 PM PST US From: "Larry McFarland" Subject: Re: Zenith-List: Mufflers for Subaru engine --> Zenith-List message posted by: "Larry McFarland" Michel, Tony Bingilis's book Firewall Forward has a very interesting Swiss Muffler described on page 111 that intrigues me. It would move the CG back a little and it's reported to comply with Swiss regulations on aircraft noise. Larry McFarland ----- Original Message ----- From: "Michel Therrien" Subject: Zenith-List: Mufflers for Subaru engine > --> Zenith-List message posted by: Michel Therrien > > Hi list, > > I'm thinking about the exhaust system for my 601 and I > have a few questions. > > 1. How does the Stratus muffler system performs in > terms of noise reduction and weight? > > 2. Does anybody here has another exhaust installation > for an EA-81 engine and could share a bit about the > design and performance? > > Thanks! > > Michel ________________________________ Message 7 _____________________________________ Time: 05:59:03 PM PST US From: Michel Therrien Subject: Re: Zenith-List: Mufflers for Subaru engine --> Zenith-List message posted by: Michel Therrien I thought seriously about that for a while, but I can't find the SS mesh nor the 4" aluminum tube. --- Larry McFarland wrote: > --> Zenith-List message posted by: "Larry McFarland" > > > Michel, > Tony Bingilis's book Firewall Forward has a very > interesting Swiss Muffler ===== ---------------------------- Michel Therrien CH601-HD http://mthobby.pcperfect.com/ch601 http://www.zenithair.com/bldrlist/profiles/mthobby http://pages.infinit.net/mthobby