Zenith-List Digest Archive

Thu 12/27/07


Total Messages Posted: 27



Today's Message Index:
----------------------
 
     1. 02:45 AM - Re: 0200 Engine Mount (Clive Richards)
     2. 04:18 AM - Re: 701 Dual Controls. ref Michael Rand. (Geoff Heap)
     3. 05:56 AM - Re: 0200 Engine Mount (wade jones)
     4. 06:47 AM - Re: Tow Bar (BobTezyk)
     5. 08:39 AM - Re: AMD & BRS (PatrickW)
     6. 09:25 AM - Trying an unproven engine - is it feasible, is it safe? (AB_Summit)
     7. 10:10 AM - Beginner (Darrell Haas)
     8. 10:35 AM - Re: Beginner (PatrickW)
     9. 10:35 AM - DEC 26,07 (Keystone Engineering LLC)
    10. 10:37 AM - Re: Beginner (Craig Payne)
    11. 10:42 AM - Re: Trying an unproven engine - is it feasible, is it safe? (John Bolding)
    12. 10:51 AM - Re: Beginner (Kevin Bonds)
    13. 11:08 AM - Re: Beginner (Craig Payne)
    14. 11:14 AM - Re: Unproven engine??? Safe?? (Zed Smith)
    15. 11:22 AM - Re: "dl" (Zed Smith)
    16. 12:13 PM - Re: Trying an unproven engine - is it feasible, is it safe? (William Dominguez)
    17. 12:47 PM - Re: Beginner (Gig Giacona)
    18. 01:18 PM - Re: Beginner (robert stone)
    19. 01:38 PM - Re: Beginner (Andrew Ackland)
    20. 02:01 PM - Developed length "dl" (George Swinford)
    21. 02:27 PM - [Fw: Re: Tow Bar] (kensmith@springnet1.com)
    22. 02:41 PM - Re: Beginner (Kevin Bonds)
    23. 06:41 PM - DL question (Darrell Haas)
    24. 06:59 PM - Re: Trying an unproven engine - is it feasible, is it safe? (Southern Reflections)
    25. 07:29 PM - Re: Trying an unproven engine - is it feasible, is it safe? (Joemotis@aol.com)
    26. 08:10 PM - Re: Trying an unproven engine - is it feasible, is it safe? (AB_Summit)
    27. 10:02 PM - Re: Re: Trying an unproven engine - is it feasible, is it safe? (NYTerminat@aol.com)
 
 
 


Message 1


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    Time: 02:45:50 AM PST US
    From: "Clive Richards" <s.c.richards@homecall.co.uk>
    Subject: Re: 0200 Engine Mount
    Hi Wade ZAC can supply you with a drawing to build the mount for the XL. Ray had one built from these for his HD & wished he had moved engine closer to firewall to help with weights & Balance. I can send you photos of installed engine direct if you wish as they are stored some where on my computer. I don't have photos of the mount on its own. Rays G CBDG cont 0 200 179 Hrs approx Clive ----- Original Message ----- From: wade jones To: zenith-list@matronics.com Sent: Tuesday, December 25, 2007 1:43 PM Subject: Zenith-List: 0200 Engine Mount Hello group ,hope all of you are having a Merry Christmas . I am ready to build my engine mount for my 601 .I will be using either my newly purchased 0235 Franklin or my 0200 Cont. (they both fit the same mount). I have been studying the plans but I could use some more help .Could anyone on the list send me a picture of a completed 0200 mount or perhaps a cad drawing showing a 3D view . Thanks Wade Jones South Texas 601XL plans building Cont. 0200


    Message 2


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    Time: 04:18:05 AM PST US
    Subject: Re: 701 Dual Controls. ref Michael Rand.
    From: "Geoff Heap" <stol10@comcast.net>
    Richard. I get all your emails but you don't get any of my replies. I suggest you get a friend to email me for the info......Geoff Read this topic online here: http://forums.matronics.com/viewtopic.php?p=154490#154490


    Message 3


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    Time: 05:56:08 AM PST US
    From: "wade jones" <wjones@brazoriainet.com>
    Subject: Re: 0200 Engine Mount
    Thanks Clive for the reply .I have plans #6464 and the drawings for the 0200 mount are included .I am looking for more refined details if any are available .I also plan to keep the engine as close to the firewall as possible for W/B . DO NOT ARCHIVE Wade Jones South Texas 601XL plans building Cont. 0200 ----- Original Message ----- From: Clive Richards To: zenith-list@matronics.com Sent: Thursday, December 27, 2007 4:44 AM Subject: Re: Zenith-List: 0200 Engine Mount Hi Wade ZAC can supply you with a drawing to build the mount for the XL. Ray had one built from these for his HD & wished he had moved engine closer to firewall to help with weights & Balance. I can send you photos of installed engine direct if you wish as they are stored some where on my computer. I don't have photos of the mount on its own. Rays G CBDG cont 0 200 179 Hrs approx Clive ----- Original Message ----- From: wade jones To: zenith-list@matronics.com Sent: Tuesday, December 25, 2007 1:43 PM Subject: Zenith-List: 0200 Engine Mount Hello group ,hope all of you are having a Merry Christmas . I am ready to build my engine mount for my 601 .I will be using either my newly purchased 0235 Franklin or my 0200 Cont. (they both fit the same mount). I have been studying the plans but I could use some more help .Could anyone on the list send me a picture of a completed 0200 mount or perhaps a cad drawing showing a 3D view . Thanks Wade Jones South Texas 601XL plans building Cont. 0200 href="http://www.matronics.com/contribution">http://www.matronics.com/c href="http://www.matronics.com/Navigator?Zenith-List">http://www.matron href="http://forums.matronics.com">http://forums.matronics.com


    Message 4


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    Time: 06:47:21 AM PST US
    Subject: Re: Tow Bar
    From: "BobTezyk" <bob@eaglesnestestates.org>
    Jay, Look at what is out there, then design what you want and we can weld it up at my place. It should not take too long. -------- do not archive Regards, Bob Tezyk N78QT - 601XL QB/ Jab3300 Working on elevator http://neo.datamatrix.com/eaglesnestestates/index.php?option=com_rsgallery2&amp;Itemid=32&amp;catid=23 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=154505#154505


    Message 5


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    Time: 08:39:50 AM PST US
    Subject: Re: AMD & BRS
    From: "PatrickW" <pwhoyt@yahoo.com>
    Here are some photos of an AMD 601 XLi with the BRS parachute: http://picasaweb.google.com/Patrick.Hoyt/AMD601XLBRS When I visited the Zenith booth at Oshkosh last year, there was a BRS employee speaking with Sebastion. He said that new BRS brackets were going to be standard on 601XL's. The new brackets would allow people to build their 601XL's without the BRS, but would more easily allow a builder to retrofit a BRS installation at some point in the future if they chose. I've since received my fuselage, and have taken some photographs of the BRS brackets which are shared here: http://picasaweb.google.com/Patrick.Hoyt/Zenith601XLBRSBrackets I'm interested in seeing and sharing info with anyone else who's installing a BRS. Apparently there's a fair amount of interest in this. You guys who've already done it - is there any pointers you can share? Would you do anything different knowing what you know now...? Patrick XL/Corvair N63PZ Read this topic online here: http://forums.matronics.com/viewtopic.php?p=154515#154515


    Message 6


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    Time: 09:25:20 AM PST US
    Subject: Trying an unproven engine - is it feasible, is it safe?
    From: "AB_Summit" <rengler@live.ca>
    Hi everyone, (This is a cross posting from homebuiltairplanes.com, but I thought I would post it here as well to get input from you guys.) I've got an idea for a new engine redrive combination that as far as I know, no one has tried before. This is all hypothetical for the time being as I don't even have a plane to put it on, but I'm thinking of building a Zenith STOL CH-701 and I think this would be a good engine for that plane. I am not an engineer, or even a pilot yet, but I do enjoy building, fabricating, working with metal, etc. My idea is to take a Yamaha four stroke, four cylinder snowmobile engine and adapt a Rotax gearbox redrive to it. This would be for my own personal use only and not for any commercial purpose. The engine is just under 1000cc's and produces 140HP in the carbureted version and 150HP in the EFI version, but I would derate it for aircraft use. The weight of the engine is 118 lbs. This engine is based on the R1 motorcycle engine, but doesn't have a gearbox like the motorcycle engine does. This engine has proven durable in snowmobiles that have been turbocharged and are making 300HP+. My method of adapting the redrive to the engine would be to machine an adapter ring and coupling. There is a ring of 6 bolts around the output shaft of the engine, I could make a plate that attaches to the engine using these 6 bolts and then drill and tap the plate to accept the Rotax gearbox bolt pattern and bolt the gearbox to the plate. Then I would need to do some machining to get the shafts couple properly. As I said in the title, my questions are would this be feasible, and would this be safe? My first thought is that if this was easy to do, somebody would have already done it, and since I haven't seen this combination before it makes me wonder if there is some problem I haven't thought of. To me the main concerns are whether the joint between the engine and gearbox would be substantial enough to handle the load put on it by the thrust of the propeller, and whether there would be any torsional vibration concerns that would damage the engine or the gearbox. There is a rubber cushion built into the Rotax C gearbox that would help absorb some of the vibration, and there is also a clutch that can be installed into it to uncouple the gearbox from the engine at low RPM's. I could also install some external bracing between the engine and gearbox to take some of the thrust loads. Another concern is designing an engine mount that is safe and will take all the loads put on it. If I were to go ahead with this, how could I ensure that my installation is safe? Should it be inspected by a mechanical engineer? I imagine having it looked at by an EAA tech counsellor would be a good idea as well. Are there any risks that I haven't though of that I should be aware of? I'd like to hear your thoughts as to whether this is doable and safe. Would I be better off going with a more proven conversion like the Suzuki/Geo or go with the 912? Thanks Randy Read this topic online here: http://forums.matronics.com/viewtopic.php?p=154524#154524


    Message 7


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    Time: 10:10:58 AM PST US
    From: "Darrell Haas" <darrellhaas@gmail.com>
    Subject: Beginner
    I just recently bought a fuselage kit from a friend and I'm trying to get up to speed with all the terms/abbreviations on the drawings. Not to appear stupid but trying to learn from others, is there a glossary that explains things like dL ? Most of the things are obvious but you all know what it's like before you drill that first hole or make that first cut. You just want everything to be perfect and afraid to make a mistake. Are there any good books for advice like that for builders? Thanks, Darrell 601 XL N723DD reserved do not archive


    Message 8


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    Time: 10:35:23 AM PST US
    Subject: Re: Beginner
    From: "PatrickW" <pwhoyt@yahoo.com>
    Look over Zenith's website, and the archives here at Matronics. Get yourself registered with Zenith so you can get access to their builders website. They'll supply you with a UserID and password. Drilling the first hole is the hardest part, but it's a great milestone. IMHO, don't worry about being perfect. If you do, you'll never finish the plane. These are not mach 3 fighters or swiss watches, and they don't have to be perfect. Zenith aircraft have been build by volunteer labor at airshows and then flown by the designer himself, so that speaks well. Good luck. You will have fun and learn a lot. Patrick 601XL/Corvair N63PZ Read this topic online here: http://forums.matronics.com/viewtopic.php?p=154545#154545


    Message 9


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    Time: 10:35:23 AM PST US
    From: Keystone Engineering LLC <keystone@gci.net>
    Subject: DEC 26,07
    Congratulations! What a Christmas present! My only suggestion is you not use flaps in a cross wind. The 801 is a great airplane. Bill Wilcox N801BW 350 hrs stored for the winter. Floats next summer I am proud to say that N9801S flew off the board without a single problem! Left the ground at about 55 mph and never looked back. All the trims were dead on. Didn't do a full stall, but did get it slowed down to 40 with no flaps with just a slight buffeting, no stall. All testing went without a hitch. Landing was just about perfect at 55 with no flaps.


    Message 10


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    Time: 10:37:03 AM PST US
    From: "Craig Payne" <craig@craigandjean.com>
    Subject: Beginner
    "dl" is "developed length" - the length after bending (someone will hump in with a more precise definition). The second most common question is "what is a standard angle". The dimensions are on page 6-T-1 of the 601XL plans in the lower right corner. A good place to start reading is the Zenith constructions standards document. The glossary is on page 5: http://www.zenithair.com/pdf-doc/zenair%20construction%20standards%20draft%2 01-07.pdf Also read "All-Metal Construction Made Easy" starting at: http://www.zenithair.com/kit-data/allmetal.htm -- Craig From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of Darrell Haas Sent: Thursday, December 27, 2007 10:42 AM Subject: Zenith-List: Beginner I just recently bought a fuselage kit from a friend and I'm trying to get up to speed with all the terms/abbreviations on the drawings. Not to appear stupid but trying to learn from others, is there a glossary that explains things like dL ? Most of the things are obvious but you all know what it's like before you drill that first hole or make that first cut. You just want everything to be perfect and afraid to make a mistake. Are there any good books for advice like that for builders? Thanks, Darrell 601 XL N723DD reserved do not archive


    Message 11


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    Time: 10:42:04 AM PST US
    From: "John Bolding" <jnbolding1@teleshare.net>
    Subject: Re: Trying an unproven engine - is it feasible, is it safe?
    The can of worms you've just opened is the size of a 55 gal. barrel, good luck !! John > > Hi everyone, > > (This is a cross posting from homebuiltairplanes.com, but I thought I > would post it here as well to get input from you guys.) > > I've got an idea for a new engine redrive combination that as far as I > know, no one has tried before. This is all hypothetical for the time being > as I don't even have a plane to put it on, but I'm thinking of building a > Zenith STOL CH-701 and I think this would be a good engine for that plane. > I am not an engineer, or even a pilot yet, but I do enjoy building, > fabricating, working with metal, etc. > > My idea is to take a Yamaha four stroke, four cylinder snowmobile engine > and adapt a Rotax gearbox redrive to it. This would be for my own personal > use only and not for any commercial purpose. The engine is just under > 1000cc's and produces 140HP in the carbureted version and 150HP in the EFI > version, but I would derate it for aircraft use. The weight of the engine > is 118 lbs. This engine is based on the R1 motorcycle engine, but doesn't > have a gearbox like the motorcycle engine does. This engine has proven > durable in snowmobiles that have been turbocharged and are making 300HP+. > > Thanks > Randy > >


    Message 12


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    Time: 10:51:47 AM PST US
    From: Kevin Bonds <kevinbonds@comcast.net>
    Subject: Re: Beginner
    Actually "dl" is the length before bending. Usually 1mm or 2mm less material per bend. Each bend adds length to the finished part--so to speak. Craig Payne wrote: > > dl is developed length the length after bending (someone will > hump in with a more precise definition). > > The second most common question is what is a standard angle. The > dimensions are on page 6-T-1 of the 601XL plans in the lower right corner. > > A good place to start reading is the Zenith constructions standards > document. The glossary is on page 5: > > http://www.zenithair.com/pdf-doc/zenair%20construction%20standards%20draft%201-07.pdf > > Also read *_All-Metal Construction Made Easy_* starting at: > > http://www.zenithair.com/kit-data/allmetal.htm > > -- Craig >


    Message 13


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    Time: 11:08:13 AM PST US
    From: "Craig Payne" <craig@craigandjean.com>
    Subject: Beginner
    > Actually "dl" is the length before bending. What always throws me off is that it is past tense: developed length. You would think they would name it "predeveloped length" :-) -- Craig


    Message 14


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    Time: 11:14:49 AM PST US
    From: Zed Smith <zsmith3rd@earthlink.net>
    Subject: Re: Unproven engine??? Safe??
    do not archive BRS makes an engine/motor, with other stuff attached, to go with this project. I'd suggest getting one. Best reards in advance, Zed


    Message 15


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    Time: 11:22:42 AM PST US
    From: Zed Smith <zsmith3rd@earthlink.net>
    Subject: Re: "dl"
    do not archive "Developed Length" is the phrase tossed around at ZAC in 1999. May have changed by now. Had something to do with WHERE the measurement was made.....inside or outside of the bend. Zed


    Message 16


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    Time: 12:13:23 PM PST US
    From: William Dominguez <bill_dom@yahoo.com>
    Subject: Re: Trying an unproven engine - is it feasible, is it safe?
    Is it safe? Short answer; No unless you are flying over the Bonneville salt flats. Long answer; There are a lot of divisions between builders when it comes to the viability of auto conversions to power homebuild aircraft. But that is for auto conversions that are already developed, where you buy either the converted engine or the manual and parts to do the conversion yourself. However, what you're proposing is to develop your own conversion. In this case there is no much division and almost everyone would agree that it is not a good idea to engage in one, unless you have the proper qualification and be willing to throw enough money in R&D. IMHO, if you just want an inexpensive engine to power your plane, go with an establish and proven conversion. William Dominguez Zodiac 601XL Plans Miami Florida Hi everyone, (This is a cross posting from homebuiltairplanes.com, but I thought I would post it here as well to get input from you guys.) I've got an idea for a new engine redrive combination that as far as I know, no one has tried before. This is all hypothetical for the time being as I don't even have a plane to put it on, but I'm thinking of building a Zenith STOL CH-701 and I think this would be a good engine for that plane. I am not an engineer, or even a pilot yet, but I do enjoy building, fabricating, working with metal, etc. My idea is to take a Yamaha four stroke, four cylinder snowmobile engine and adapt a Rotax gearbox redrive to it. This would be for my own personal use only and not for any commercial purpose. The engine is just under 1000cc's and produces 140HP in the carbureted version and 150HP in the EFI version, but I would derate it for aircraft use. The weight of the engine is 118 lbs. This engine is based on the R1 motorcycle engine, but doesn't have a gearbox like the motorcycle engine does. This engine has proven durable in snowmobiles that have been turbocharged and are making 300HP+. My method of adapting the redrive to the engine would be to machine an adapter ring and coupling. There is a ring of 6 bolts around the output shaft of the engine, I could make a plate that attaches to the engine using these 6 bolts and then drill and tap the plate to accept the Rotax gearbox bolt pattern and bolt the gearbox to the plate. Then I would need to do some machining to get the shafts couple properly. As I said in the title, my questions are would this be feasible, and would this be safe? My first thought is that if this was easy to do, somebody would have already done it, and since I haven't seen this combination before it makes me wonder if there is some problem I haven't thought of. To me the main concerns are whether the joint between the engine and gearbox would be substantial enough to handle the load put on it by the thrust of the propeller, and whether there would be any torsional vibration concerns that would damage the engine or the gearbox. There is a rubber cushion built into the Rotax C gearbox that would help absorb some of the vibration, and there is also a clutch that can be installed into it to uncouple the gearbox from the engine at low RPM's. I could also install some external bracing between the engine and gearbox to take some of the thrust loads. Another concern is designing an engine mount that is safe and will take all the loads put on it. If I were to go ahead with this, how could I ensure that my installation is safe? Should it be inspected by a mechanical engineer? I imagine having it looked at by an EAA tech counsellor would be a good idea as well. Are there any risks that I haven't though of that I should be aware of? I'd like to hear your thoughts as to whether this is doable and safe. Would I be better off going with a more proven conversion like the Suzuki/Geo or go with the 912? Thanks Randy Read this topic online here: http://forums.matronics.com/viewtopic.php?p=154524#154524


    Message 17


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    Time: 12:47:23 PM PST US
    Subject: Re: Beginner
    From: "Gig Giacona" <wr.giacona@suddenlink.net>
    One problem you will find starting with the fuselage is that the build manual assumes you have learned somethings while building the tail and wings. Good luck and as everyone else has mentioned contact Zenith. Oh, and use this list. It is a great resource. [quote="darrellhaas(at)gmail.com"]I just recently bought a fuselage kit from a friend and I'm trying to get up to speed with all the terms/abbreviations on the drawings. Not to appear stupid but trying to learn from others, is there a glossary that explains things like dL ? Most of the things are obvious but you all know what it's like before you drill that first hole or make that first cut. You just want everything to be perfect and afraid to make a mistake. Are there any good books for advice like that for builders? Thanks, Darrell 601 XL N723DD reserved do not archive > [b] -------- W.R. &quot;Gig&quot; Giacona 601XL Under Construction See my progress at www.peoamerica.net/N601WR Read this topic online here: http://forums.matronics.com/viewtopic.php?p=154576#154576


    Message 18


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    Time: 01:18:53 PM PST US
    From: "robert stone" <rstone4@hot.rr.com>
    Subject: Re: Beginner
    Darrell, One good thing to remember when building anything and that is MEASURE TWICE, AND CUT ONCE There are hundreds of builders on this forum who are knowledgeable and willing to help so any time you need to know anything, use the Zenith net because it's a great resource. Bob Stone Harker Heights, Tx ZodiacXL w/Jabiru 3300 (I now have 78 hours flying time on this aircraft) ----- Original Message ----- From: Darrell Haas To: zenith-list@matronics.com Sent: Thursday, December 27, 2007 11:41 AM Subject: Zenith-List: Beginner I just recently bought a fuselage kit from a friend and I'm trying to get up to speed with all the terms/abbreviations on the drawings. Not to appear stupid but trying to learn from others, is there a glossary that explains things like dL ? Most of the things are obvious but you all know what it's like before you drill that first hole or make that first cut. You just want everything to be perfect and afraid to make a mistake. Are there any good books for advice like that for builders? Thanks, Darrell 601 XL N723DD reserved do not archive


    Message 19


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    Time: 01:38:16 PM PST US
    From: "Andrew Ackland" <andrewack@clara.co.uk>
    Subject: Beginner
    EVEN BETTER, MEASURE TWICE, STOP THINK ABOUT IT, MEASURE AGAIN, THEN CUT ONCE. Strange, even after all these measures your scrap bin will soon fill up!! Andy Ackland 601HD (60% done) in the UK Do not archive _____ From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of robert stone Sent: 27 December 2007 21:18 Subject: Re: Zenith-List: Beginner Darrell, One good thing to remember when building anything and that is MEASURE TWICE, AND CUT ONCE There are hundreds of builders on this forum who are knowledgeable and willing to help so any time you need to know anything, use the Zenith net because it's a great resource. Bob Stone Harker Heights, Tx ZodiacXL w/Jabiru 3300 (I now have 78 hours flying time on this aircraft) ----- Original Message ----- From: Darrell Haas <mailto:darrellhaas@gmail.com> Sent: Thursday, December 27, 2007 11:41 AM Subject: Zenith-List: Beginner I just recently bought a fuselage kit from a friend and I'm trying to get up to speed with all the terms/abbreviations on the drawings. Not to appear stupid but trying to learn from others, is there a glossary that explains things like dL ? Most of the things are obvious but you all know what it's like before you drill that first hole or make that first cut. You just want everything to be perfect and afraid to make a mistake. Are there any good books for advice like that for builders? Thanks, Darrell 601 XL N723DD reserved do not archive href="http://www.matronics.com/contribution">http://www.matronics.com/chref "http://www.matronics.com/Navigator?Zenith-List">http://www.matronhref="http ://forums.matronics.com">http://forums.matronics.com


    Message 20


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    Time: 02:01:39 PM PST US
    From: "George Swinford" <grs-pms@comcast.net>
    Subject: Developed length "dl"
    "Developed length" comes from the aircraft engineering practice of flat pattern development. Sheet metal parts are trimmed and shaped "in the flat" and then formed by brakes, or over form blocks or dies in presses. A flat pattern must be developed to define the shape of the flat stock which is to be formed. Developed length is the length of the flat stock needed to make the part. The reason that developed length is not the same as the width or length of the finished part plus the height of the flanges is that the bends do not have sharp corners, but are radiused. In the flat, the dimension of the flange is less than it will be after forming because it takes less material to go around the radius than it would to go all the way to the corner, then make a sharp bend. The term "setback" is used to define the material "saved" by not going all the way to the corner I can't speak for the way designers define flat parts in this day and age, but 50 years ago flat patterns were developed and drawn by hand (usually by junior engineers and draftsmen). Extensive handbook tables which considered material thickness, bend angle and bend radius were used to define setback. The drawings were then transferred to the material from which templates and forming dies were made. It was tedious, painstaking work, but there was a certain satisfaction in doing it. George Swinford


    Message 21


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    Time: 02:27:24 PM PST US
    From: "kensmith@springnet1.com" <kensmith@springnet1.com>
    Subject: Re: Tow Bar]
    I utilized Larry's drawing regarding the collar around the front gear torque tube and it worked out perfect. The only change that I did was chamfer flat the area's opposite the head of the through bolt that tightens the clamping action on the torque tube and then put a nut on the thru bolt instead of threading one side of the compression rings. The critical measurement (2.002") is the completed center I.D. of the completed clamp. It fit the torque tube like a glove without compressing the torque tube one little bit. I made the exterior dia. a 1/4" larger than Larry's design which gives me more material for the through bolt. It also will now work with a Cessna 150 tow bar without any modification. The 150 tow bar is easy to find. This is an excellent design for eleveating paint scratched off the front tire faring by putting a a tow bar against it and also the safety factor of stopping the complete compression of the torque tube if the bungee broke by some type of circumstance. It took me about 2 hours on the lathe and maybe $.50 worth of cold roll steel bar to build it. Excellent design Larry - I take my hat off to you. Ken Smith Jay, Better than putting a tow bar at the axle, you should consider using a travel stop and tow bar ring a few inches below the firewall mounted on the strut. Then use a tow bar on the ring to pull the plane from a better leverage point for steering. Also, if your bungee lets go, the travel stop ring will keep your prop out of the dirt. On my site, I've free drawings available for making the ring and the tow bar, or you can order the finished product. see link, www.macsmachine.com/html/itemsforsale.htm Best regards Larry McFarland 601HDS at www.macsmachine.com Jaybannist@cs.com wrote: > > Listers: > > On the Spruce & Wick's web sites, I see lots of tow bars. No specs. Does anyone know what specific model of tow bar will work with the 60XL nose gear axle? > > Jay in Dallas 601XL N2630J > > >


    Message 22


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    Time: 02:41:14 PM PST US
    From: Kevin Bonds <kevinbonds@comcast.net>
    Subject: Re: Beginner
    I second the motion to henceforth refer to "dl" as "pdl". ;) Kevin do not archive Craig Payne wrote: > >> > > What always throws me off is that it is past tense: developed length. You > would think they would name it "predeveloped length" :-) > > -- Craig > >


    Message 23


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    Time: 06:41:03 PM PST US
    From: "Darrell Haas" <darrellhaas@gmail.com>
    Subject: DL question
    Thank you all for the advice. Yes drilling that first hole is scary. I'll be free to ask all of you for help. Darrell 601XL


    Message 24


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    Time: 06:59:20 PM PST US
    From: "Southern Reflections" <purplemoon99@bellsouth.net>
    Subject: Re: Trying an unproven engine - is it feasible, is it safe?
    55 gallons is not even close, it will turn to your WORST NITEMARE! no mention if it doesn't kill you it will try too, every time it gets a chance Belive me, I know. The money?? you better havea bag full , and If you ever get it work ,you will be so crazy that you can't pass a mental test so you won't be allowed to fly your death trap. Buy a engine that is proven and go on with your life....Happy New Year . Joe N101HD 601XL/RAM P.S. TheH D in N101HD stands for Harley Davison....... ----- Original Message ----- From: "John Bolding" <jnbolding1@teleshare.net> Sent: Thursday, December 27, 2007 1:39 PM Subject: Re: Zenith-List: Trying an unproven engine - is it feasible, is it safe? > <jnbolding1@teleshare.net> > > The can of worms you've just opened is the size of a 55 gal. barrel, good > luck !! > John > > >> >> Hi everyone, >> >> (This is a cross posting from homebuiltairplanes.com, but I thought I >> would post it here as well to get input from you guys.) >> >> I've got an idea for a new engine redrive combination that as far as I >> know, no one has tried before. This is all hypothetical for the time >> being as I don't even have a plane to put it on, but I'm thinking of >> building a Zenith STOL CH-701 and I think this would be a good engine for >> that plane. I am not an engineer, or even a pilot yet, but I do enjoy >> building, fabricating, working with metal, etc. >> >> My idea is to take a Yamaha four stroke, four cylinder snowmobile engine >> and adapt a Rotax gearbox redrive to it. This would be for my own >> personal use only and not for any commercial purpose. The engine is just >> under 1000cc's and produces 140HP in the carbureted version and 150HP in >> the EFI version, but I would derate it for aircraft use. The weight of >> the engine is 118 lbs. This engine is based on the R1 motorcycle engine, >> but doesn't have a gearbox like the motorcycle engine does. This engine >> has proven durable in snowmobiles that have been turbocharged and are >> making 300HP+. >> > Thanks >> Randy >> >> > > >


    Message 25


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    Time: 07:29:59 PM PST US
    From: Joemotis@aol.com
    Subject: Re: Trying an unproven engine - is it feasible, is it safe?
    I like the idea. Any favorite links to the engine in question? And for all of the naysayers, it is called experimental for a reason! Spectacular success is often measured by accumulated failure that you are lucky enough to live through. Longtime anything that runs on gasoline builder. (http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)


    Message 26


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    Time: 08:10:48 PM PST US
    Subject: Re: Trying an unproven engine - is it feasible, is it safe?
    From: "AB_Summit" <rengler@live.ca>
    Joemotis(at)aol.com wrote: > I like the idea. Any favorite links to the engine in question? There's not much to be found on the Internet about this engine, it's called the Genesis 150FI, here's one link: http://www.yamaha-motor.com/sport/sno/tech_eng.aspx Some of the other engines on that page might be adaptable for aircraft use as well. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=154660#154660


    Message 27


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    Time: 10:02:04 PM PST US
    From: NYTerminat@aol.com
    Subject: Re: Trying an unproven engine - is it feasible, is it
    safe? Here is another link where they have converted many types of engines, you could possibly use their gearbox _http://www.airtrike s.net/engines. shtml_ (http://www.airtrikes.net/engines.shtml) Bob Spudis In a message dated 12/27/2007 11:11:53 P.M. Eastern Standard Time, rengler@live.ca writes: --> Zenith-List message posted by: "AB_Summit" <rengler@live.ca> Joemotis(at)aol.com wrote: > I like the idea. Any favorite links to the engine in question? There's not much to be found on the Internet about this engine, it's called the Genesis 150FI, here's one link: http://www.yamaha-motor.com/sport/sno/tech_eng.aspx Some of the other engines on that page might be adaptable for aircraft use as well. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=154660#154660 (http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)




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