From: krnet-bounces@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 347, Issue 470 Date: 11/18/2005 7:05:01 AM Send KRnet mailing list submissions to krnet@mylist.net To subscribe or unsubscribe via the World Wide Web, visit http://mylist.net/listinfo/krnet or, via email, send a message with subject or body 'help' to krnet-request@mylist.net You can reach the person managing the list at krnet-owner@mylist.net When replying, please edit your Subject line so it is more specific than "Re: Contents of KRnet digest..." Today's Topics: 1. ELECTRONIC IGNITION/COMPU FIRE DIS (Larry H.) 2. GPS (Larry H.) 3. ELECTRICAL DIAGRAM UPDATE (Larry H.) 4. MARKS CORVAIR ENGINE (Larry H.) 5. Re: #1 & #2b while flying (Larry H.) 6. Re:>electrival update (Allen Wiesner ) 7. R?f. : Re: R?f. : Re: KR> Fuel tanks-transfer methods (Serge VIDAL) 8. Off Topic. Furniture (Cris.) 9. GPS (Dan Heath) 10. electronic ignition (pedro@heroic.co.uk) 11. Re: electronic ignition (phil brookman) 12. Re: prop length (Larry&Sallie Flesner) 13. Re: Re:>electrival update (Mark Langford) 14. Re: GPS (Mark Langford) 15. Re: MARKS CORVAIR ENGINE (Mark Langford) 16. Re: MARKS CORVAIR ENGINE (phil brookman) 17. Re: MARKS CORVAIR ENGINE (Mark Langford) 18. RE: Re: #1 & #2b while flying (Steve Glover) 19. Re: RE: KR> Re: #1 & #2b while flying (danrh@alltel.net) 20. RE: GPS (Steve Glover) ---------------------------------------------------------------------- Message: 1 Date: Thu, 17 Nov 2005 23:39:13 -0600 From: "Larry H." Subject: KR> ELECTRONIC IGNITION/COMPU FIRE DIS To: "krnet talk" Message-ID: <008501c5ec02$690da9c0$6801a8c0@boss1> Content-Type: text/plain; charset="Windows-1252" There was a good discussion a while back on the VW engine group about electronic igniton. The newest DIS Compu Fire seems like the best choice if you are willing to use a distributor for it's timing. I am sure most of you are aware of this system, Great Plains sells it. If I understand it correctly, you place a round disk inside your distributor on the shaft where your rotor usually would sit(but no rotor or points required), it has 4 magnets placed 90 degrees from one another in it's surface, in other words one at each 12-3-6-and 9 oclock. The new anodized cap that comes with the system replaces your distributor cap and has the electronic pickup built into it, no points required. Wires come out of the lid to the coil pack. The coil pack has two coils in it, each seperate from the other. Each coil has two spark plug wires coming out of it. You place the two wires coming out of one of the coils on the two back cylinders spark plugs and the other coils two wires on the front two cylinders. If one coil fails then you have one coil left that will be firing the other two cylinders. Those two cylinders may get you to an airport, of course that would depend on your useable horsepower from two cyls and how much weight you are carrying. As long as you have an alternator still working or power in your battery, it is sorta like having a backup system. These coils produce 60,000 volts, so it is recommended that the spark plug gap be opened up some for a nice long spark which is very powerfull. I think a regular VW coil puts out about 30 to 35,000 volts, so as you can see the Compu Fire is powerfull. I will have to presume that the Compu Fire may use more battery than the normal VW coil system, but I do not know that I am just guessing. The coil pack mounts on the firewall so you will not have a tall distrubutor cap and wires on the engine. If you go to a VW repair facility you may be able to find the old style distributor that is very low profile as compared to the new 009 or whatever they are. The system senses the speed of the engine, so at no speed, as in starting it sets it'self close to TDC for starting and when at higher RPM as in cruising it will opperate at 30 degrees BTDC. As most of you know the normal VW distributor usually starts close to 7 degrees BTDC (before top dead center) and advances to only about 25 degrees BTDC. It is easy to see that the electronic ignition is supposed to be more efficient and maybe produces a little more horsepower. Electronics, I love them ! especially when they are working properly and they usually do. The backup electronic low profile distributor that Steve at Great Plains sells is permanently set at 30 degrees BTDC. That is why he says it is not for starting your engine, it is a backup for a single mag for example. It is said that an engine will start easiest at up to 3 degrees ATDC (after top dead center). So as I have learned you want close to TDC for Start and about 30 degrees BTDC for the most efficient cruise with these engines that we use for our aircraft. I have talked to a couple of people who use the Compu Fire Dis system only with no magneto and they firmly believe it is safe, best they have ever used and think they can make it to an airport if they were to loose one of the coils. The price is pretty good also, I think it is about $ 260.00. Not bad for a sorta dual system. Just my thoughts on Electronic ignition. Larry H. ------------------------------ Message: 2 Date: Fri, 18 Nov 2005 00:03:36 -0600 From: "Larry H." Subject: KR> GPS To: "krnet talk" Message-ID: <00a401c5ec05$d1201720$6801a8c0@boss1> Content-Type: text/plain; charset="Windows-1252" Mark J, You are just too efficient ! How bout you? One hundred bucks ? I like it ! Larry H. PS: For a hand held, I still can't see how you can beat the new Lowrance for $600.00 bucks. Color and soon other things. Most of us buy new every few years so who cares if they support it 5 years from now. ebay it away and get the new 300 dollar one they will have by then ! I have always been a Garmin guy but I may now be a Lowrance guy for the dollars. ------------------------------ Message: 3 Date: Fri, 18 Nov 2005 00:09:30 -0600 From: "Larry H." Subject: KR> ELECTRICAL DIAGRAM UPDATE To: "krnet talk" Message-ID: <00ad01c5ec06$a443e8c0$6801a8c0@boss1> Content-Type: text/plain; charset="Windows-1252" Thanks Mark L, The diagram is very clear, and the photos are great. Thanks for your continued effort for everyone. : ) Larry H. ------------------------------ Message: 4 Date: Fri, 18 Nov 2005 00:13:46 -0600 From: "Larry H." Subject: KR> MARKS CORVAIR ENGINE To: "KRNET" Message-ID: <00b601c5ec07$3cd33cd0$6801a8c0@boss1> Content-Type: text/plain; charset="Windows-1252" Hi Mark L., I was wondering how the Corvair engine is going and if you are happy with it. Are you still thinking about going back with the larger engine or are you satisfied with this one. Did you ever find out why the crank broke in the first one. I was always under the impression that the Corvair crank was it's best asset. Thanks Larry H. ------------------------------ Message: 5 Date: Fri, 18 Nov 2005 00:26:28 -0600 From: "Larry H." Subject: KR> Re: #1 & #2b while flying To: Message-ID: <00cc01c5ec09$02957fe0$6801a8c0@boss1> Content-Type: text/plain; charset="iso-8859-1" Phil, your friend must not be well endowed, if he were from Texas he would not need help reaching the bottom of the airplane ! yeee hee hee haaaaa Larry H. ------------------------------ Message: 6 Date: Fri, 18 Nov 2005 02:16:35 -0500 From: "Allen Wiesner " Subject: KR> Re:>electrival update To: "KRnet" Cc: Mark Langford Message-ID: <005001c5ec10$037e7c20$c7ea4345@CPQ69645694259> Content-Type: text/plain; charset="iso-8859-1" Mark: >I've been asked to update my pathetic electrical page with a schematic >of >the "ultimate fuel/ignition redundancy" scheme, so I did. I assume that the two center contacts of the DPDT switch are jumpered together? Allen G. Wiesner KR-2SS/TD S/N 1118 65 Franklin Street Ansonia, CT 06401-1240 (203) 732-0508 flashyal@usadatanet.net ------------------------------ Message: 7 Date: Fri, 18 Nov 2005 08:48:20 +0100 From: Serge VIDAL Subject: R?f. : Re: R?f. : Re: KR> Fuel tanks-transfer methods To: KRnet Message-ID: Content-Type: text/plain; charset="iso-8859-1" Yes, I know. But despite having increased the diameter of the lines, and despite this defying logics somehow, it eeps happening. Low on my list of priorities, so I will give it a thought some day... but not now! Serge VIRGIL N SALISBURY Envoyé par : krnet-bounces@mylist.net 11/17/2005 17:04 Veuillez répondre à KRnet Remis le : 11/17/2005 20:54 Pour : krnet@mylist.net cc : (ccc : Serge VIDAL/DNSA/SAGEM) Objet : Re: Réf. : Re: KR> Fuel tanks-transfer methods The problem is drawing fuel from the sight gauge rather than from the tank and loosing fuel feed, Virg On Thu, 17 Nov 2005 16:37:15 +0100 Serge VIDAL writes: > I agree. I believe this is the source of my problem with my sight > gauge > (it has a serious lag, and then a sudden drop). > > Serge Vidal > KR2 "Kilimanjaro Cloud" > Paris, France > > > > > > VIRGIL N SALISBURY > > Envoyé par : krnet-bounces@mylist.net > 2005-11-17 15:51 > Veuillez répondre à KRnet > Remis le : 2005-11-17 16:32 > > > Pour : krnet@mylist.net > cc : (ccc : Serge VIDAL/DNSA/SAGEM) > Objet : Re: KR> Fuel tanks-transfer methods > > > > However, Do NOT use a "T" at the bottom of the tank. Use > SEPARATE openings for the sight gauge and the feed, Virg > > On Wed, 16 Nov 2005 23:24:05 -0800 (PST) Frank Ross > > writes: > > --- Colin Rainey > > wrote: > > I will transfer fuel to the header for use, > > > keeping the fuel system simple and mods minimal. > > > > > Colin Rainey > > > > Colin, > > Howard Kaiser's KR-2 in the Phoenix area (80s - 90s) > > had a simple rubber-bulb, squeeze-type fuel pump from > > a boat under the pilot's legs to transfer fuel from > > the wing tanks to the header tank. > > Worked very well, but too busy for me. > > Of course this could be adapted to take advantage of > > the "pucker-factor" but you have to make sure you > > don't over-fill the header tank in that case... > > Header tank fuel "gauge" was the old tube from the top > > of the header tank, out through the panel, down > > vertically to the bottom of the panel and back into > > the header tank. Also worked well, requiring no > > electricity. > > Simple and VERY reliable. > > FWIW > > Frank > > > > > > Frank Ross, > > EAA Chapter 35, > > San Geronimo, TX > > RAF Lakenheath, Suffolk, England, UK > > Visit my photo album at: > > http://photos.yahoo.com/alamokr2 > > > > > > > > > > __________________________________ > > Yahoo! Mail - PC Magazine Editors' Choice 2005 > > http://mail.yahoo.com > > > > _______________________________________ > > Search the KRnet Archives at > > http://www.maddyhome.com/krsrch/index.jsp > > to UNsubscribe from KRnet, send a message to > KRnet-leave@mylist.net > > please see other KRnet info at http://www.krnet.org/info.html > > > > > > > Virgil N. Salisbury - AMSOIL > www.lubedealer.com/salisbury > Miami ,Fl > > _______________________________________ > Search the KRnet Archives at > http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > > _______________________________________ > Search the KRnet Archives at > http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > Virgil N. Salisbury - AMSOIL www.lubedealer.com/salisbury Miami ,Fl _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html ------------------------------ Message: 8 Date: Fri, 18 Nov 2005 11:42:27 +0100 From: "Cris." Subject: KR> Off Topic. Furniture To: KRnet Message-ID: Content-Type: text/plain; charset=ISO-8859-1 Does anybody need a new bookshelf for your home or hangar? Here are a couple of things homebuilder could be interested in :-) Otherwise, just glass them and... http://www.emufly.com/ Ciao. Cris. -- Land the airplane, rubber side down, main wheels first. ------------------------------ Message: 9 Date: Fri, 18 Nov 2005 05:50:37 -0500 (Eastern Standard Time) From: "Dan Heath" Subject: KR> GPS To: Message-ID: <437DB1FD.000007.03788@DANHOMECOMPUTER> Content-Type: Text/Plain; charset="iso-8859-1" Before you decide what to get, you should check out this one. I am only posting this for you to have another option. http://anywheremap.com/ There are several that operate with this configuration, this is the leader in that field. See N64KR at http://KRBuilder.org - Then click on the pics See you in Mt. Vernon - 2006 - KR Gathering There is a time for building and a time for FLYING and the time for building is OVER. Daniel R. Heath - Lexington, SC ------------------------------ Message: 10 Date: Fri, 18 Nov 2005 11:14:00 -0000 (GMT) From: Subject: KR> electronic ignition To: Message-ID: <51024.139.149.1.211.1132312440.squirrel@www.heroic.co.uk> Content-Type: text/plain; charset=iso-8859-1 Hi, In UK where the PFA are far more restrictive than the EAA, dual ignition is the std. The favourite system of yor was dual Lucas tractor mags - they stopped making them back in the 50's but they keep on keeping on . Most modern planes when faced with replacing the Lucas set up go for the Leburg Electronic system. see http://www.leburg.freeserve.co.uk/ This is composed of two completely separate ignition packs and car HT coils running with power from 2 small batteries but fed from a single alternator. Obviously you want some form of low volts annunciator for the batteries and alternator. I still have the Lucas set up, but I know there is high satisfaction with the Leburg system, it produces a wopping big spark, and making prop swinging much easier Pete ------------------------------ Message: 11 Date: Fri, 18 Nov 2005 11:20:59 -0000 From: "phil brookman" Subject: Re: KR> electronic ignition To: "KRnet" Message-ID: <009301c5ec32$26cfa6f0$73a51352@philljl2re6t9i> Content-Type: text/plain; charset=iso-8859-1 hi pete me also from uk i fly a kr 2 and have a few lucas bits too perhaps we could have chat pho@ntlworld.com phil ----- Original Message ----- From: To: Sent: Friday, November 18, 2005 11:14 AM Subject: KR> electronic ignition > Hi, > > In UK where the PFA are far more restrictive than the EAA, dual > ignition is the std. > > The favourite system of yor was dual Lucas tractor mags - they stopped > making them back in the 50's but they keep on keeping on . > > Most modern planes when faced with replacing the Lucas set up go for > the Leburg Electronic system. see http://www.leburg.freeserve.co.uk/ > > This is composed of two completely separate ignition packs and car HT > coils running with power from 2 small batteries but fed from a single > alternator. > > Obviously you want some form of low volts annunciator for the > batteries and alternator. > > I still have the Lucas set up, but I know there is high satisfaction > with the Leburg system, it produces a wopping big spark, and making > prop swinging much easier > > Pete > > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.362 / Virus Database: 267.13.3/173 - Release Date: > 16/11/2005 > > ---------------------------------------- I am using the free version of SPAMfighter for private users. It has removed 24540 spam emails to date. Paying users do not have this message in their emails. Try www.SPAMfighter.com for free now! -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.13.3/173 - Release Date: 16/11/2005 ------------------------------ Message: 12 Date: Fri, 18 Nov 2005 06:00:57 -0600 From: Larry&Sallie Flesner Subject: Re: KR> prop length To: KRnet Message-ID: <6.2.5.6.0.20051118055441.02774ea0@verizon.net> Content-Type: text/plain; charset=us-ascii; format=flowed > I have >been toying with the idea of a three bladed,..just for looks and >wondered if it were smaller in diameter, would I not lose efficiency? patrusso ++++++++++++++++++++++++++++++++++++++++++++++++ General rule of thumb (real general) is that with a three blade Vs. a two blade prop, the three blade will give you better takeoff and climb but the two blade will give better cruise numbers. Yes, the prop to cowl interface can greatly affect prop efficiency. That's the reason for prop extensions and the reason I'm using a 5" extension. on my 0-200. Larry Flesner ------------------------------ Message: 13 Date: Fri, 18 Nov 2005 06:20:07 -0600 From: "Mark Langford" Subject: KR> Re: Re:>electrival update To: "KRnet" Message-ID: <012601c5ec3a$6a50ddb0$d004a58c@net.tbe.com> Content-Type: text/plain; charset="iso-8859-1" Allen G. Wiesner wrote: >I assume that the two center contacts of the DPDT switch are jumpered >together? No, the schematic doesn't show that does it? The center contacts are where the power comes from, which is the main battery and electrical system in one case (the "right side"), and the backup battery in the other case (the "left side"). Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net ------------------------------ Message: 14 Date: Fri, 18 Nov 2005 06:54:31 -0600 From: "Mark Langford" Subject: Re: KR> GPS To: "KRnet" Message-ID: <014701c5ec3f$387b0bd0$d004a58c@net.tbe.com> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Dan Heath wrote: > Before you decide what to get, you should check out this one. I am > only posting this for you to have another option. > http://anywheremap.com/ AnywhereMap is famous for being the cat's meow for handheld PDAs, and for that purpose, I'm sure it's great. But in a PDA you have a teeny little screen that's hard to see (but it's far better than nothing), so AnywhereMap is fairly low resolution. For example, due to limited memory of PDAs, the database has no rivers, only big lakes, and cities are rather blocky, with only major highways shown. They now have what they call AnywhereMap XP, designed for running on notebooks, tablets, and laptops, which I ASSumed was a higher resolution version for Windows based computers. While the display is somewhat higher resolution, it uses the same low res database, so you get no rivers. I noticed this in about 5 seconds as I looked for Huntsville on their US map. I had a hard time finding it because the Tennessee river was missing! So I punched in M38, my home airport, and it said "not in database". Now that worries me. What if you're flying along and your crankshaft breaks, and you push the "nearest airport" button, and the one right under you doesn't happen to be in the database? Not a good thing. And it turns out that many of the features of the PDA version aren't yet implemented in the XP version, and the "help" files just plain don't work. Given that the instruction manual is about 10 pages long, help files would be helpful! I read complaints on the web that the stuff wasn't ready for prime time, but since they were a year or so old, I figured it was fixed by now. It's not. Couple that with the fact that they sold me a Haicom GPS that you could buy for $100 anywhere else, for $250 (it had an AnywhereMap sticker stuck to the other side, which made it more valuable, I guess), and I was pretty disgusted with my purchase. It went back in the box and back to them two weeks ago, and I'm still waiting for them to credit my credit card account. This stuff is fine for PDA's (so I'm told), but don't think you'll be happy with the laptop version. I haven't mentioned what I'm using yet, because I haven't fully tested it and can't swear by it, but I'll give a full report when I do. Basically it's a TPad 800 remote display, which is daylight readable, and 6" wide by 9" tall, mounted to the panel, dead center and right in front of my face. It's so tall it only misses the canopy by half an inch. It's hooked to my laptop, which is running Flightprep's "Chart Case" (supported by KRnet's own John Bouyeau), which is pretty awsome stuff. You have various modes of moving map, including overlayed on top of the current sectional. All of this is connected to a $100 Garmin 18 USB GPS plugged into the laptop, which came with free street mapping GPS software, so I can also use the laptop in the car on trips. The beauty of this system is that it cost me $1400 (no, that's not the beautiful part), but that when it becomes obsolete, I don't have to go out and buy another $2500 GPS box, I just buy new software. But ChartCase has regular updates, so that's not going to happen anytime soon. I basically have a full powered computer sitting on my panel. I carry a laptop anyway to collect EIS (Engine Information System) data anyway, so I might as well use it. Next improvement will be to replace the laptop with a "car PC", a little box that's about $300, and is a full-featured PC set up for 12V. I'll have to buy an "industrial hard drive" that is altitude compensated (hard drives tend to crash over 10,000'), which will drive the price to $600, but it's smaller and more rugged than the laptop, and can be permanently mounted in the plane. So I've got $2500 in a killer huge screen color GPS setup, that's not going obsolete anytime soon, a far better value for my money than a Garmin 396. Oh, and it does weather and terrain too (although I'm not up for the $30 a month WX weather subscription yet). Not as good a price as what Mark Jones has (that's hard to beat), but with better functionality and readability (although admittedly not 25x more functionality or readability!). Another alternative is a tablet PC. There are a couple (more on that later) that are daylight readable, but they are just plain bigger than will fit on my panel. I'll do a full report on this system when I have it up and running, but so far, the flight planning and GPS stuff works great! Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net ------------------------------ Message: 15 Date: Fri, 18 Nov 2005 07:17:52 -0600 From: "Mark Langford" Subject: Re: KR> MARKS CORVAIR ENGINE To: "KRnet" Message-ID: <016001c5ec42$7b1e57f0$d004a58c@net.tbe.com> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Larry H. wrote: > I was wondering how the Corvair engine is going and if you are happy > with > it. Are you still thinking about going back with the larger engine or are > you satisfied with this one. I'm still going to build another larger 3100cc engine, but I'll put a shorter extension on it, since the longer one isn't necessary to work with my cowling. I'm very satisfiied with this engine/prop combination. It pulls just as good as the old one did, and is noticeably smoother, despite the fact that the first one was perfectly balanced, and this one was just "thrown together", paying attention only to cc'ing the chambers, rather than overall balance (well, I did buy matched rods and pistons, but didn't have the whole engine dynamically balanced like I did the last one). This engine has higher compression than the old one, which is partly responsible for the good power, but only about a third of it. I attribute the rest to a more efficient prop. I can turn this engine the same speed as the old one, and go about the same airspeed. > Did you ever find out why the crank broke in the first one. I was > always > under the impression that the Corvair crank was it's best asset. John Kearney's engine vibration tester showed that prop forces were the largest contributor to overall engine vibration. This in itself isn't a smoking gun, but it tells me that the prop is a very important factor in what the crank sees. Given no other smoking guns on my crankshaft, I now believe that the handmade prop that was on my engine was the source of a vibration that was amplified by the longer prop hub and eventually broke the crank. The new 54 x 54 Sensenich was CNC'd to perfection, and is very smooth. I feel a lot more confident behind this one. I've started work on a Corvair College #9 page, which shows some engine parameters from the flight. See http://home.hiwaay.net/~langford/flights/cc9/ . I'll be adding to it later...this is just a start on it... Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net ------------------------------ Message: 16 Date: Fri, 18 Nov 2005 13:33:50 -0000 From: "phil brookman" Subject: Re: KR> MARKS CORVAIR ENGINE To: "KRnet" Message-ID: <00ce01c5ec44$b60be010$73a51352@philljl2re6t9i> X-Mailerss 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=iso-8859-1 interesting data mark as you say cyl 6 is cool but you will fix that i am sure oil temps look high 237- this could be a problem p ----- Original Message ----- From: "Mark Langford" To: "KRnet" Sent: Friday, November 18, 2005 1:17 PM Subject: Re: KR> MARKS CORVAIR ENGINE > Larry H. wrote: > > > I was wondering how the Corvair engine is going and if you are happy with > > it. Are you still thinking about going back with the larger engine > > or are > > you satisfied with this one. > > I'm still going to build another larger 3100cc engine, but I'll put a > shorter extension on it, since the longer one isn't necessary to work > with my cowling. I'm very satisfiied with this engine/prop > combination. It pulls just as good as the old one did, and is > noticeably smoother, despite the fact that the first one was perfectly > balanced, and this one was just "thrown together", paying attention > only to cc'ing the chambers, rather than > overall balance (well, I did buy matched rods and pistons, but didn't > have the whole engine dynamically balanced like I did the last one). > This engine > has higher compression than the old one, which is partly responsible > for the > good power, but only about a third of it. I attribute the rest to a > more efficient prop. I can turn this engine the same speed as the old > one, and go about the same airspeed. > > > Did you ever find out why the crank broke in the first one. I was > > always under the impression that the Corvair crank was it's best > > asset. > > John Kearney's engine vibration tester showed that prop forces were > the largest contributor to overall engine vibration. This in itself > isn't a smoking gun, but it tells me that the prop is a very important > factor in what the crank sees. Given no other smoking guns on my > crankshaft, I now believe that the handmade prop that was on my engine > was the source of a vibration that was amplified by the longer prop > hub and eventually broke the > crank. The new 54 x 54 Sensenich was CNC'd to perfection, and is very > smooth. I feel a lot more confident behind this one. > > I've started work on a Corvair College #9 page, which shows some > engine parameters from the flight. See > http://home.hiwaay.net/~langford/flights/cc9/ . I'll be adding to it > later...this is just a start on it... > > Mark Langford, Huntsville, Alabama > see KR2S project N56ML at http://home.hiwaay.net/~langford email to > N56ML "at" hiwaay.net > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.362 / Virus Database: 267.13.3/173 - Release Date: > 16/11/2005 > > -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.13.3/173 - Release Date: 16/11/2005 ------------------------------ Message: 17 Date: Fri, 18 Nov 2005 07:45:19 -0600 From: "Mark Langford" Subject: Re: KR> MARKS CORVAIR ENGINE To: "KRnet" Message-ID: <017501c5ec46$50f24e10$d004a58c@net.tbe.com> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original phil brookman wrote: > as you say cyl 6 is cool but you will fix that i am sure > oil temps look high 237- this could be a problem Number six is easy. It can be fixed with a four inch long piece of aluminum tape. Oil temp is easy to fix too. I just need to install a more efficient inlet to the cooler. Right now I'm robbing cylinder cooling air from 1,3,and 5 to pay the oil cooler, and by summer I'll give the cooler a dedicated inlet down on a high pressure part of the cowling. And the inlet is only half the size of the 2" scat tube, so I'm wasting a lot of potential cooling. But I don't think 237F is too high. Everything I've ever read on oil temp says that oil needs to get above 212F to boil off water vapor. 25 degrees isn't that much higher than 212. I'm picking up oil temps at the hottest place in the engine, right after the oil pump sucks it out of the pan, unlike some folks who get it after the cooler. The weather's supposed to be great this weekend, and I'm planning on flying to LA for Thanksgiving (Lower Alabama)... Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net ------------------------------ Message: 18 Date: Fri, 18 Nov 2005 06:48:11 -0800 From: "Steve Glover" Subject: RE: KR> Re: #1 & #2b while flying To: "'KRnet'" Message-ID: <000401c5ec4f$194486a0$0202a8c0@IntelliSpec> Content-Type: text/plain; charset="us-ascii" I think that is a little inappropriate for this forum... Steve Glover KR-2 N902G AJO, Ca -----Original Message----- From: krnet-bounces+kr02g=cox.net@mylist.net [mailto:krnet-bounces+kr02g=cox.net@mylist.net] On Behalf Of Larry H. Sent: Thursday, November 17, 2005 10:26 PM To: krnet@mylist.net Subject: KR> Re: #1 & #2b while flying Phil, your friend must not be well endowed, if he were from Texas he would not need help reaching the bottom of the airplane ! yeee hee hee haaaaa Larry H. _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html ------------------------------ Message: 19 Date: Fri, 18 Nov 2005 8:53:08 -0600 From: Subject: Re: RE: KR> Re: #1 & #2b while flying To: KRnet Message-ID: <20051118145308.EGDO6445.ispmxmta09-srv.alltel.net@[166.102.165.30]> Content-Type: text/plain; charset=ISO-8859-1 I agree. From: "Steve Glover" Date: 2005/11/18 Fri AM 08:48:11 CST To: "'KRnet'" Subject: RE: KR> Re: #1 & #2b while flying I think that is a little inappropriate for this forum... Steve Glover KR-2 N902G AJO, Ca -----Original Message----- From: krnet-bounces+kr02g=cox.net@mylist.net [mailto:krnet-bounces+kr02g=cox.net@mylist.net] On Behalf Of Larry H. Sent: Thursday, November 17, 2005 10:26 PM To: krnet@mylist.net Subject: KR> Re: #1 & #2b while flying Phil, your friend must not be well endowed, if he were from Texas he would not need help reaching the bottom of the airplane ! yeee hee hee haaaaa Larry H. _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html ------------------------------ Message: 20 Date: Fri, 18 Nov 2005 07:04:18 -0800 From: "Steve Glover" Subject: RE: KR> GPS To: "'KRnet'" Message-ID: <000701c5ec51$5c751410$0202a8c0@IntelliSpec> Content-Type: text/plain; charset="us-ascii" Hey Marko and Netter's, I have the High Res database in my AnywhereMap PDA. It has all roads, rivers, lakes, airports, etc. The XP version for my tablet also had the High Res database. The additional database files have to be downloaded from AWM's website and installed. They are good size files but have tons of stuff. I had a learning curve initially but now really like it. There are a number of settings in the software you have to set to display the features you want. I can display airways, approach plates, VORs with freq's, ATIS, and elevation. I really like the 396 but like others, am hesitant to spend the $2500+ to get it. I'm with Mark on the GPS receiver. I use my Bluetooth wireless for the antennae to eliminate wires and it works great. My receiver is from an auto gps system. I bought the software and GPS antennae for $200. It works just fine with the AWM. I have been From California to Mt. Vernon, Ohio, down to Alabama and back with it without a problem. I definitely needed a reliable GPS with a solid database to get me through some of the weather on these trips. Regards, Steve Glover KR-2 N902G AJO, Ca -----Original Message----- From: krnet-bounces@mylist.net [mailto:krnet-bounces@mylist.net] On Behalf Of Mark Langford Sent: Friday, November 18, 2005 4:55 AM To: KRnet Subject: Re: KR> GPS Dan Heath wrote: > Before you decide what to get, you should check out this one. I am > only posting this for you to have another option. > http://anywheremap.com/ AnywhereMap is famous for being the cat's meow for handheld PDAs, and for that purpose, I'm sure it's great. But in a PDA you have a teeny little screen that's hard to see (but it's far better than nothing), so AnywhereMap is fairly low resolution. For example, due to limited memory of PDAs, the database has no rivers, only big lakes, and cities are rather blocky, with only major highways shown. They now have what they call AnywhereMap XP, designed for running on notebooks, tablets, and laptops, which I ASSumed was a higher resolution version for Windows based computers. While the display is somewhat higher resolution, it uses the same low res database, so you get no rivers. I noticed this in about 5 seconds as I looked for Huntsville on their US map. I had a hard time finding it because the Tennessee river was missing! So I punched in M38, my home airport, and it said "not in database". Now that worries me. What if you're flying along and your crankshaft breaks, and you push the "nearest airport" button, and the one right under you doesn't happen to be in the database? Not a good thing. And it turns out that many of the features of the PDA version aren't yet implemented in the XP version, and the "help" files just plain don't work. Given that the instruction manual is about 10 pages long, help files would be helpful! I read complaints on the web that the stuff wasn't ready for prime time, but since they were a year or so old, I figured it was fixed by now. It's not. Couple that with the fact that they sold me a Haicom GPS that you could buy for $100 anywhere else, for $250 (it had an AnywhereMap sticker stuck to the other side, which made it more valuable, I guess), and I was pretty disgusted with my purchase. It went back in the box and back to them two weeks ago, and I'm still waiting for them to credit my credit card account. This stuff is fine for PDA's (so I'm told), but don't think you'll be happy with the laptop version. I haven't mentioned what I'm using yet, because I haven't fully tested it and can't swear by it, but I'll give a full report when I do. Basically it's a TPad 800 remote display, which is daylight readable, and 6" wide by 9" tall, mounted to the panel, dead center and right in front of my face. It's so tall it only misses the canopy by half an inch. It's hooked to my laptop, which is running Flightprep's "Chart Case" (supported by KRnet's own John Bouyeau), which is pretty awsome stuff. You have various modes of moving map, including overlayed on top of the current sectional. All of this is connected to a $100 Garmin 18 USB GPS plugged into the laptop, which came with free street mapping GPS software, so I can also use the laptop in the car on trips. The beauty of this system is that it cost me $1400 (no, that's not the beautiful part), but that when it becomes obsolete, I don't have to go out and buy another $2500 GPS box, I just buy new software. But ChartCase has regular updates, so that's not going to happen anytime soon. I basically have a full powered computer sitting on my panel. I carry a laptop anyway to collect EIS (Engine Information System) data anyway, so I might as well use it. Next improvement will be to replace the laptop with a "car PC", a little box that's about $300, and is a full-featured PC set up for 12V. I'll have to buy an "industrial hard drive" that is altitude compensated (hard drives tend to crash over 10,000'), which will drive the price to $600, but it's smaller and more rugged than the laptop, and can be permanently mounted in the plane. So I've got $2500 in a killer huge screen color GPS setup, that's not going obsolete anytime soon, a far better value for my money than a Garmin 396. Oh, and it does weather and terrain too (although I'm not up for the $30 a month WX weather subscription yet). Not as good a price as what Mark Jones has (that's hard to beat), but with better functionality and readability (although admittedly not 25x more functionality or readability!). Another alternative is a tablet PC. There are a couple (more on that later) that are daylight readable, but they are just plain bigger than will fit on my panel. I'll do a full report on this system when I have it up and running, but so far, the flight planning and GPS stuff works great! Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 347, Issue 470 *************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================