---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Mon 12/23/02: 18 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:08 AM - Corvair engine corrected (Andy Smith) 2. 09:22 AM - mike impedance (Wayne McIntosh) 3. 09:28 AM - Re: 601 canopies (James J. Cullen, Ph.D.) 4. 12:11 PM - Re: mike impedance (Bryan Martin) 5. 01:52 PM - Re: (Eric Mchugh) 6. 02:03 PM - Re: Re: (STEFREE@aol.com) 7. 02:38 PM - Re: Re: (Fred Poor) 8. 02:58 PM - Re: Re: (SEAL2CC@aol.com) 9. 03:34 PM - Re: Re: (Larry C. McFarland) 10. 04:10 PM - Re: Re: (wizard-24@juno.com) 11. 05:07 PM - Re: mike impedance (ac6qj@earthlink.net) 12. 05:09 PM - Re: Re: (Jon Croke) 13. 05:19 PM - Re: Zenith tech support (George Swinford) 14. 05:19 PM - Re: Re: (H. Robert Schoenberger) 15. 06:05 PM - Re: Re: Zenith tech support (Jeff & Marcia Davidson) 16. 06:27 PM - Re: Re: (Cy Galley) 17. 07:28 PM - Re: mike impedance (Wayne McIntosh) 18. 09:56 PM - Rudder deflection (Dave Alberti) ________________________________ Message 1 _____________________________________ Time: 09:08:25 AM PST US From: Andy Smith Subject: Zenith-List: Corvair engine corrected --> Zenith-List message posted by: Andy Smith Wow, lots of replies instantly. So let me redo this so it makes abit more sense. New parts: pistons, bearings, valves, valve guides, WW hybrid studs, bearings and all seals. Cylinders are 10 over. All parts bought from Corvair Underground - Lon Wall Crank was polished and magnafluxed, along with rods which were reconditioned and balanced. Heads were redone by Pine Street Auto in Lodi, CA I have assembled the to having the heads on and torqued. there is no exhaust or intake. I also have the starter and ring gear for rear starter and the harmonic balancer. I am asking $2000 plus shipping for this 0 time engine. David Mikesell www.skyguynca.com 23597 N. Hwy 99 Acampo, CA 95220 209-609-8774 ________________________________ Message 2 _____________________________________ Time: 09:22:13 AM PST US From: "Wayne McIntosh" Subject: Zenith-List: mike impedance --> Zenith-List message posted by: "Wayne McIntosh" Does anyone know the impedance of the microphone used in general aviation headsets? I want to hook one up to use in the mortorcycle helmet I use in my ultralight. Motorcycle headset microphones will not work. I called the manufacturer of my radio (Sportys) and they will not tell me. Wayne McIntosh Lafayette IN ________________________________ Message 3 _____________________________________ Time: 09:28:27 AM PST US From: "James J. Cullen, Ph.D." Subject: Re: Zenith-List: 601 canopies --> Zenith-List message posted by: "James J. Cullen, Ph.D." fwiw -- the Zenith CH2000 has gullwing doors that work quite well. I've flown one. Jim ----- Original Message ----- From: "Rick" Subject: Zenith-List: 601 canopies > --> Zenith-List message posted by: Rick > > > Well, I've got most of the fuselage clecoed together (gotta go visit my > buddy with the 4 foot brake to remake a couple of parts), and I'm > getting ready to cut the plywood forms for the upper fuselage bulkheads. > Now is the last chance to decide whether to go with gullwing doors, > sliding canopy, or the stock Zenith bubble, front hinged of course! > > I asked a few months ago about gullwing doors and got this pic from one > of the list members: http://lightflyers.com/gullwing2.jpg > Very nice looking project. I sure would like to see some more gullwing > pictures. If anybody has built a Zodiac with gullwing doors please post > the website or email a picture to me. I'd be much obliged :) > > Thanks, > Rick Pitcher > http://lightflyers.com/Zodiac.html > > ________________________________ Message 4 _____________________________________ Time: 12:11:51 PM PST US From: Bryan Martin Subject: Re: Zenith-List: mike impedance --> Zenith-List message posted by: Bryan Martin ----- Original Message ----- From: Wayne McIntosh Subject: Zenith-List: mike impedance > --> Zenith-List message posted by: "Wayne McIntosh" > > Does anyone know the impedance of the microphone used in general > aviation headsets? I want to hook one up to use in the mortorcycle > helmet I use in my ultralight. Motorcycle headset microphones will > not work. I called the manufacturer of my radio (Sportys) and they > will not tell me. > Wayne McIntosh Lafayette IN > > The problem isn't so much that the impedance of the motercycle microphone isn't right, but that the aircraft radio is designed for an archaic piece of 1920's technology called a carbon microphone. (See http://www.rst-engr.com/rst/magazine/karmic2.pdf ) The mic in your motorcycle helmet is probably an unamplified dynamic microphone while your aircraft radio requires a microphone circuit designed to emulate a carbon microphone. (If I recall correctly, the carbon mic has about 600 ohms impedance and requires a 5V bias voltage supplied to it from the radio.) You will probably have to obtain a replacement microphone designed to work with an aircraft radio to install in your helmet. And while you're at it you might have to use a transformer to match the 4 to 8 ohm speaker circuit in your helmet to the 150 ohm output circuit of the radio. You might be able to obtain a used aircraft headset on the cheap and cannibilize it for the components to make your helmet work with your radio. Bryan Martin 601XL ________________________________ Message 5 _____________________________________ Time: 01:52:42 PM PST US From: "Eric Mchugh" Subject: Zenith-List: Re: --> Zenith-List message posted by: "Eric Mchugh" I am one of the builders who cannot complete thier aircraft after been conned by chris hentz who is incapable of designing a mount. It will be quicker to do it yourself, you will get no sense or help from zenair . I can prove that from there corespondance . I have built a jig and ready to produce a mount i am just looking for a CAA welder a qualified person that is .Thats something else zenair won't tel you .They cannot produce the documentation to confirm there welds/design are safe. -----Original Message----- From: Greg P Jannakos >--> Zenith-List message posted by: Greg P Jannakos > >Looking for following items for Zodiac 601 > > 1.Engine mount for C series Continental engine or plans for building >same. > 2. Canopy > >Any available? > > ________________________________ Message 6 _____________________________________ Time: 02:03:11 PM PST US From: STEFREE@aol.com Subject: Re: Zenith-List: Re: --> Zenith-List message posted by: STEFREE@aol.com In defense of Zenair, They only claim to be a firewall back solution. It would be impossible for them to make engine mounts for every possible engine out there. They don't claim to be able to do this either. Those of you who have followed this list will know I have blasted ZAC in the past for things I felt they were deficient in, but I have certainly never felt "conned" in any way. That is a harsh word and I don't think it should apply to ZAC. On a seperate happier note, To all Listers, Have a merry Christmas and a Happy New Year. may all of your landings be soft, and please, keep the dirty side down. Steve (Perpetually stuck at 95% done) Freeman ________________________________ Message 7 _____________________________________ Time: 02:38:35 PM PST US From: Fred Poor Subject: Re: Zenith-List: Re: --> Zenith-List message posted by: Fred Poor How in the hell can you write a letter like this about CHRIS --- Eric Mchugh wrote: > --> Zenith-List message posted by: "Eric Mchugh" > > > I am one of the builders who cannot complete thier > aircraft after been > conned by chris hentz who is incapable of designing > a mount. It will be > quicker to do it yourself, you will get no sense or > help from zenair . I can > prove that from there corespondance . I have built a > jig and ready to > produce a mount i am just looking for a CAA welder a > qualified person that > is .Thats something else zenair won't tel you .They > cannot produce the > documentation to confirm there welds/design are > safe. > -----Original Message----- > From: Greg P Jannakos > To: zenith-list@matronics.com > > Date: 04 December 2002 20:02 > > > >--> Zenith-List message posted by: Greg P Jannakos > > > > >Looking for following items for Zodiac 601 > > > > 1.Engine mount for C series Continental > engine or plans for > building > >same. > > 2. Canopy > > > >Any available? > > > > > > > > Click on the > this > generous > _-> > Contributions > any other > Forums. > > latest messages. > List members. > > http://www.matronics.com/subscription > http://www.matronics.com/FAQ/Zenith-List.htm > Digests:http://www.matronics.com/digest/zenith-list > http://www.matronics.com/archives > http://www.matronics.com/photoshare > http://www.matronics.com/emaillists > > > > > ________________________________ Message 8 _____________________________________ Time: 02:58:41 PM PST US From: SEAL2CC@aol.com Subject: Re: Zenith-List: Re: --> Zenith-List message posted by: SEAL2CC@aol.com In a message dated 12/23/02 4:53:28 PM Eastern Standard Time, e.mch@tiscali.co.uk writes: > I am one of the builders who cannot complete thier aircraft after been > conned by chris hentz who is incapable of designing a mount. It will be > quicker to do it yourself, you will get no sense or help from zenair . I > can > prove that from there corespondance . I have built a jig and ready to > produce a mount i am just looking for a CAA welder a qualified person that > is .Thats something else zenair won't tel you .They cannot produce the > documentation to confirm there welds/design are safe. I find it difficult to accept ANYONE"S critical comments when delivered in such poor grammatical fashion and reflecting such a bad attitude, even if it IS on a web newsgroup. Well thought out constructive criticism is fine. It is another thing to presume to deign oneself a more qualified aeronautical engineer than Chris Heintz based on your "corespondance." To deliver that conclusion in such a fashion leads me to suggest that you make sure all of the other steps in your construction project have been properly completed and, hopefully, examined by a qualified third party. Chris Carey Zodiac 601 HDS N601BZ Richmond, VA ________________________________ Message 9 _____________________________________ Time: 03:34:24 PM PST US From: "Larry C. McFarland" Subject: Re: Zenith-List: Re: --> Zenith-List message posted by: "Larry C. McFarland" Eric, ZAC will sell a drawing for any engine mount they have supported, (Subaru or 912). It's not their business to provide engineering services for all engines that fit the envelope. Others preceed you in using the Continental and they may have the drawings that have worked ,, if you ask. Documentation that would prove a safe mount would be unreadable because most people are numerically challenged to this extent. Building a mount is not rocket science. There are a lot of articles that show the general approach to this. The key is to arm yourself with the knowlege to accomplish the task. It's not a freebe just because a kit was purchased. Take a deep breath and have another go at it. Larry C. McFarland - 601hds and just studying the Soob mount. ----- Original Message ----- From: "Eric Mchugh" Subject: Zenith-List: Re: > --> Zenith-List message posted by: "Eric Mchugh" > > I am one of the builders who cannot complete thier aircraft after been > conned by chris hentz who is incapable of designing a mount. It will be > quicker to do it yourself, you will get no sense or help from zenair . I can > prove that from there corespondance . I have built a jig and ready to > produce a mount i am just looking for a CAA welder a qualified person that > is .Thats something else zenair won't tel you .They cannot produce the > documentation to confirm there welds/design are safe. ________________________________ Message 10 ____________________________________ Time: 04:10:19 PM PST US Subject: Re: Zenith-List: Re: From: wizard-24@juno.com --> Zenith-List message posted by: wizard-24@juno.com > In defense of Zenair, > > They only claim to be a firewall back solution. Since someone else brought it up....does anyone know if ZAC has closed down for the holidays? I've sent two requests for tech support that have gone unanswered for over two weeks. I find that unusual based on previous experiences. do not archive ________________________________ Message 11 ____________________________________ Time: 05:07:40 PM PST US From: ac6qj@earthlink.net Subject: Re: Zenith-List: mike impedance --> Zenith-List message posted by: ac6qj@earthlink.net An electret microphone also requires the bias but will not require a matching transformer. DO NOT ARCHIVE Best regards, Ray Montagne Cupertino, CA Zenith CH601-XL Builder #4939 >--> Zenith-List message posted by: Bryan Martin > > >----- Original Message ----- >From: Wayne McIntosh >Date: Monday, December 23, 2002 12:25 pm >Subject: Zenith-List: mike impedance > >> --> Zenith-List message posted by: "Wayne McIntosh" >> >> Does anyone know the impedance of the microphone used in general >> aviation headsets? I want to hook one up to use in the mortorcycle >> helmet I use in my ultralight. Motorcycle headset microphones will >> not work. I called the manufacturer of my radio (Sportys) and they >> will not tell me. >> Wayne McIntosh Lafayette IN >> >> > >The problem isn't so much that the impedance of the motercycle >microphone isn't right, but that the aircraft radio is designed for an >archaic piece of 1920's technology called a carbon microphone. (See >http://www.rst-engr.com/rst/magazine/karmic2.pdf ) The mic in your >motorcycle helmet is probably an unamplified dynamic microphone while >your aircraft radio requires a microphone circuit designed to emulate >a carbon microphone. (If I recall correctly, the carbon mic has about >600 ohms impedance and requires a 5V bias voltage supplied to it from >the radio.) You will probably have to obtain a replacement microphone >designed to work with an aircraft radio to install in your helmet. And >while you're at it you might have to use a transformer to match the 4 >to 8 ohm speaker circuit in your helmet to the 150 ohm output circuit >of the radio. > >You might be able to obtain a used aircraft headset on the cheap and >cannibilize it for the components to make your helmet work with your >radio. > >Bryan Martin >601XL > > -- ________________________________ Message 12 ____________________________________ Time: 05:09:30 PM PST US From: "Jon Croke" Subject: Re: Zenith-List: Re: --> Zenith-List message posted by: "Jon Croke" > > Since someone else brought it up....does anyone know if ZAC has closed > down for the holidays? I've sent two requests for tech support that have > gone unanswered for over two weeks. I find that unusual based on previous > experiences. They shipped my FWF kit (701) last Thursday and received it today.... part of them is open! Good luck www.joncroke.com do not archive ________________________________ Message 13 ____________________________________ Time: 05:19:27 PM PST US From: "George Swinford" Subject: Zenith-List: Re: Zenith tech support --> Zenith-List message posted by: "George Swinford" Cleone Markwell, a 601 builder, forwarded an e-mail saying that Sebastian had recently suffered a stroke. I haven't seen any other information on this, but it would certainly explain a time lag in tech support. Can someone provide a confirmation and update on his condition? George Swinford ----- Original Message ----- From: Subject: Re: Zenith-List: Re: > --> Zenith-List message posted by: wizard-24@juno.com > > > > In defense of Zenair, > > > > They only claim to be a firewall back solution. > > Since someone else brought it up....does anyone know if ZAC has closed > down for the holidays? I've sent two requests for tech support that have > gone unanswered for over two weeks. I find that unusual based on previous > experiences. > > do not archive > > ________________________________ Message 14 ____________________________________ Time: 05:19:44 PM PST US From: "H. Robert Schoenberger" Subject: Re: Zenith-List: Re: --> Zenith-List message posted by: "H. Robert Schoenberger" Why not build the plane with the engines for which it was designed or pay Chris Heintz as a consultant to design a custom mount? That is the way professional engineers and designers work. I don't know why you would expect free design work for a non-standard installation. I don't give away my design services and why should he? Chris Heintz isn't conning anyone. I have had tremendous help from Zenair, but only on things they designed. Hap Schoenberger Do not archive. ----- Original Message ----- From: "Eric Mchugh" Subject: Zenith-List: Re: > --> Zenith-List message posted by: "Eric Mchugh" > > I am one of the builders who cannot complete thier aircraft after been > conned by chris hentz who is incapable of designing a mount. It will be > quicker to do it yourself, you will get no sense or help from zenair . I can > prove that from there corespondance . I have built a jig and ready to > produce a mount i am just looking for a CAA welder a qualified person that > is .Thats something else zenair won't tel you .They cannot produce the > documentation to confirm there welds/design are safe. > -----Original Message----- > From: Greg P Jannakos > To: zenith-list@matronics.com > Date: 04 December 2002 20:02 > > > >--> Zenith-List message posted by: Greg P Jannakos > > > >Looking for following items for Zodiac 601 > > > > 1.Engine mount for C series Continental engine or plans for > building > >same. > > 2. Canopy > > > >Any available? > > > > > > ________________________________ Message 15 ____________________________________ Time: 06:05:41 PM PST US From: "Jeff & Marcia Davidson" Subject: Re: Zenith-List: Re: Zenith tech support --> Zenith-List message posted by: "Jeff & Marcia Davidson" I recently sent an email tech support request to ZAC. After 2 weeks I called, talked to Nick, and resent it at his suggestion. I got an answer the day after I resent it. He asked that I put my name and builder number in the subject line. That seemed to work about a week ago. A couple days later, last Friday I think, I called and talked to Roger while Nick was busy with another customer. Jeff ________________________________ Message 16 ____________________________________ Time: 06:27:13 PM PST US From: "Cy Galley" Subject: Re: Zenith-List: Re: --> Zenith-List message posted by: "Cy Galley" I will second Larry's Statement. My suggestion is to find a tube and rag builder; one that knows how to weld to assist you. It isn't rocket science but learning the skill of correctly welding a motor mount takes much more time than you will spend on welding it. One of the members in Larry and my EAA Chapter said that he had the feel for welding just about the time he was welding the last cluster on his fuselage and he had a world class instructor teaching him. The skill for gas welding thin 4130 tubing is different than found in your local welding shop. Cy Galley, TC - Chair, Emergency Aircraft Repair, Oshkosh Editor, EAA Safety Programs cgalley@qcbc.org or experimenter@eaa.org Always looking for articles for the Experimenter P.S. I was not the instructor... Remember I said world class welder. ----- Original Message ----- From: "Larry C. McFarland" Subject: Re: Zenith-List: Re: > --> Zenith-List message posted by: "Larry C. McFarland" > > Eric, > ZAC will sell a drawing for any engine mount they have > supported, (Subaru or 912). It's not their business to provide > engineering services for all engines that fit the envelope. > > Others preceed you in using the Continental and they may > have the drawings that have worked ,, if you ask. > > Documentation that would prove a safe mount would be unreadable > because most people are numerically challenged to this extent. > > Building a mount is not rocket science. There are a lot of articles that > show > the general approach to this. The key is to arm yourself with the knowlege > to accomplish the task. It's not a freebe just because a kit was purchased. > > Take a deep breath and have another go at it. > > Larry C. McFarland - 601hds and just studying the Soob mount. > > > ----- Original Message ----- > From: "Eric Mchugh" > To: > Subject: Zenith-List: Re: > > > > --> Zenith-List message posted by: "Eric Mchugh" > > > > I am one of the builders who cannot complete thier aircraft after been > > conned by chris hentz who is incapable of designing a mount. It will be > > quicker to do it yourself, you will get no sense or help from zenair . I > can > > prove that from there corespondance . I have built a jig and ready to > > produce a mount i am just looking for a CAA welder a qualified person that > > is .Thats something else zenair won't tel you .They cannot produce the > > documentation to confirm there welds/design are safe. > > ________________________________ Message 17 ____________________________________ Time: 07:28:09 PM PST US From: "Wayne McIntosh" Subject: Re: Zenith-List: mike impedance --> Zenith-List message posted by: "Wayne McIntosh" Thanks for the info on mikes I am looking into this and I can only see that I need to spend more money. Wayne McIntosh Lafayette IN ----- Original Message ----- From: Subject: Re: Zenith-List: mike impedance > --> Zenith-List message posted by: ac6qj@earthlink.net > > An electret microphone also requires the bias but will not require a > matching transformer. > > DO NOT ARCHIVE > > Best regards, Ray Montagne > Cupertino, CA > > Zenith CH601-XL > Builder #4939 > > >--> Zenith-List message posted by: Bryan Martin > > > > > >----- Original Message ----- > >From: Wayne McIntosh > >Date: Monday, December 23, 2002 12:25 pm > >Subject: Zenith-List: mike impedance > > > >> --> Zenith-List message posted by: "Wayne McIntosh" > >> > >> Does anyone know the impedance of the microphone used in general > >> aviation headsets? I want to hook one up to use in the mortorcycle > >> helmet I use in my ultralight. Motorcycle headset microphones will > >> not work. I called the manufacturer of my radio (Sportys) and they > >> will not tell me. > >> Wayne McIntosh Lafayette IN > >> > >> > > > >The problem isn't so much that the impedance of the motercycle > >microphone isn't right, but that the aircraft radio is designed for an > >archaic piece of 1920's technology called a carbon microphone. (See > >http://www.rst-engr.com/rst/magazine/karmic2.pdf ) The mic in your > >motorcycle helmet is probably an unamplified dynamic microphone while > >your aircraft radio requires a microphone circuit designed to emulate > >a carbon microphone. (If I recall correctly, the carbon mic has about > >600 ohms impedance and requires a 5V bias voltage supplied to it from > >the radio.) You will probably have to obtain a replacement microphone > >designed to work with an aircraft radio to install in your helmet. And > >while you're at it you might have to use a transformer to match the 4 > >to 8 ohm speaker circuit in your helmet to the 150 ohm output circuit > >of the radio. > > > >You might be able to obtain a used aircraft headset on the cheap and > >cannibilize it for the components to make your helmet work with your > >radio. > > > >Bryan Martin > >601XL > > > > > > -- > > ________________________________ Message 18 ____________________________________ Time: 09:56:42 PM PST US From: "Dave Alberti" Subject: Zenith-List: Rudder deflection --> Zenith-List message posted by: "Dave Alberti" I'm interested in the actual numbers any current 601 builders have for the angular deflection on their finished planes. Dave