From: krnet-bounces@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 346, Issue 48 Date: 4/28/2004 8:32:38 PM 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. Larry F (Stephen Jacobs) 2. RE: gas canopy struts (Wood, Sidney M.) 3. RE: gas canopy struts (Wood, Sidney M.) 4. RE: gas canopy struts (paulwasp@webtv.net) 5. Re: Larry F (larry flesner) 6. RE: gas canopy struts (Wood, Sidney M.) 7. gas canopy struts (larry flesner) 8. Re: Source for aluminum "T" stock. (Ron Butterfield) 9. Re: delaminations! (Ron Eason) 10. RE: Larry F (Stephen Jacobs) 11. engine choices (Brian Kraut) 12. Re: Source for aluminum "T" stock. (SkyVisionSC@aol.com) 13. RE: engine choices (Doug Rupert) 14. hole in LE (larry severson) 15. Re: hole in LE (orma) 16. RE: hole in LE (Brian Kraut) 17. RV grin (Brian Kraut) 18. Re: Make your WAFs and wings inspectable!! (Mike Turner) 19. Re: RV grin (Steve Eberhart) 20. Re: engine choices (Ron Eason) 21. type 1 engine bell housing bolt onto a type four engine? (Kevin Angus) 22. Re: RV grin (JW) 23. RE: engine choices (Brian Kraut) 24. Re: engine choices (JW) ---------------------------------------------------------------------- Message: 1 Date: Wed, 28 Apr 2004 06:42:37 +0200 From: "Stephen Jacobs" Subject: KR> Larry F To: "'KRnet'" Message-ID: <000001c42cdb$3e756f00$ad64a8c0@homedesktop> Content-Type: text/plain; charset="us-ascii" Good morning Larry If you have a chance anytime soon, can you do this short test - it would close the loop on the decaulage matter. With your airplane trimmed out "hands off" in the cruise, take of the power and note what she does (in terms of pitch) - initially and after a few seconds. Have a great day Steve J ------------------------------ Message: 2 Date: Wed, 28 Apr 2004 07:52:35 -0400 From: "Wood, Sidney M." Subject: RE: KR> gas canopy struts To: "KRnet" Message-ID: Content-Type: text/plain; charset="iso-8859-1" Try http://www.magusinc.com This company makes every and any thing you could ever need for a gas spring, including mounting brackets. I used two for my forward hinged KR-2 canopy and they work great. Part number 752940, 22.5 lbs, 9.84 in stroke, 23.03 extended. $42.22 each. Mounting hardware Part number SL-46P3-1, $5.18 each, I used 4 brackets. Sid Wood KR-2 N6242 Mechanicsville, MD sidney.wood@titan.com Some time ago there was lots of information on the best canopy struts on the net. Of course I wasn't going to use them, so I made the mistake of ignoring the valuable information. Now I need some kind sole to make up for my deficiency by repeating the information of type and best places to get them. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 larry2@socal.rr.com ------------------------------ Message: 3 Date: Wed, 28 Apr 2004 08:06:24 -0400 From: "Wood, Sidney M." Subject: RE: KR> gas canopy struts To: "KRnet" Message-ID: Content-Type: text/plain; charset="iso-8859-1" www.magnusinc.com/ is a better address. Sid -----Original Message----- From: krnet-bounces@mylist.net [mailto:krnet-bounces@mylist.net] On Behalf Of Wood, Sidney M. Sent: Wednesday, April 28, 2004 7:53 AM To: KRnet Subject: RE: KR> gas canopy struts Try http://www.magusinc.com This company makes every and any thing you could ever need for a gas spring, including mounting brackets. I used two for my forward hinged KR-2 canopy and they work great. Part number 752940, 22.5 lbs, 9.84 in stroke, 23.03 extended. $42.22 each. Mounting hardware Part number SL-46P3-1, $5.18 each, I used 4 brackets. Sid Wood KR-2 N6242 Mechanicsville, MD sidney.wood@titan.com Some time ago there was lots of information on the best canopy struts on the net. Of course I wasn't going to use them, so I made the mistake of ignoring the valuable information. Now I need some kind sole to make up for my deficiency by repeating the information of type and best places to get them. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 larry2@socal.rr.com ------------------------------ Message: 4 Date: Wed, 28 Apr 2004 08:28:14 -0400 From: paulwasp@webtv.net Subject: RE: KR> gas canopy struts To: krnet@mylist.net (KRnet) Message-ID: <7880-408FA35E-102@storefull-3231.bay.webtv.net> Content-Type: Text/Plain; Charset=US-ASCII You can get 'em at Auto Zone, probably cheaper there too. http://community.webtv.net/paulwasp/paulwaspspad ------------------------------ Message: 5 Date: Wed, 28 Apr 2004 08:33:05 -0500 From: larry flesner Subject: Re: KR> Larry F To: KRnet Message-ID: <3.0.6.32.20040428083305.007f0cc0@pop.midwest.net> Content-Type: text/plain; charset="us-ascii" >If you have a chance anytime soon, can you do this short test - it >would close the loop on the decaulage matter. With your airplane >trimmed out "hands off" in the cruise, take of the power and note what >she does (in terms of pitch) - initially and after a few seconds. >Steve J +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Steve, I think you're being an optimist if you think the test will bring an end to anything but I'll do my best to try it on my next flight. It may be later this weekend before my next flight as we have some weather moving in. Larry Flesner ------------------------------ Message: 6 Date: Wed, 28 Apr 2004 09:49:07 -0400 From: "Wood, Sidney M." Subject: RE: KR> gas canopy struts To: "KRnet" Message-ID: Content-Type: text/plain; charset="iso-8859-1" I've been there and done that. Auto Zone has not a clue what the spring force is for any of their struts. They sell them as replacements for your particular make and model automobile. You can buy a lot of struts trying to find the right one for your KR application. Making a few measurements and doing a very little math can be a lot cheaper than hit or miss hunting in an auto parts store. I calculated that I needed two gas springs at 20 lb each. At my local auto parts store they let me measure the forces of all their gas springs with my bathroom scales. The lightest force gas spring, that they had, was 60 lb with a 16 in extension; no joy there. True, the auto parts store prices were half what Magnus charged, but if it is not what you need, it's not much of a bargain. Sid Wood, KR-2 N6242 Mechanicsville, MD sidney.wood@titan.com You can get 'em at Auto Zone, probably cheaper there too. http://community.webtv.net/paulwasp/paulwaspspad ------------------------------ Message: 7 Date: Wed, 28 Apr 2004 08:50:40 -0500 From: larry flesner Subject: KR> gas canopy struts To: KRnet Message-ID: <3.0.6.32.20040428085040.007f4100@pop.midwest.net> Content-Type: text/plain; charset="us-ascii" > >Some time ago there was lots of information on the best canopy struts >on >the net. Of course I wasn't going to use them, so I made the mistake of >ignoring the valuable information. Now I need some kind sole to make up for >my deficiency by repeating the information of type and best places to get >them. >Larry Severson +++++++++++++++++++++++++++++++++++++++++++++++++++++++ After some trial and error I found the one that works (perfectly) for my gullwing door was on the back of my pickup truck. The glass liftgate on my pickup bed "topper" has one on each side, or should I say had one on each side. I did replace it several weeks later when I got tired of the glass falling on my head. :-) I doubt that even two of them would be strong enough though for a forward hinged canopy. Larry Flesner ------------------------------ Message: 8 Date: Wed, 28 Apr 2004 11:37:43 -0400 From: Ron Butterfield Subject: Re: KR>Source for aluminum "T" stock. To: KRnet Message-ID: <6.0.1.1.0.20040428113355.01b49098@pop.mebtel.net> Content-Type: text/plain; charset="us-ascii"; format=flowed At 07:51 PM 3/14/04, you wrote: > Can anyone give me a source for the 1" "T" stock as mentioned in >Dean R. Collette's stabilizer/elevator hinge article. >(http://home.hiwaay.net/~langford/dean_hinge/) I assume it is 1/8" >6061 >material. McMaster has something very close. www.mcmaster.com Search for part number 1668T14, which is 1/8" thick x 7/8" high x width unknown (not listed). From the illustration, I would guess it's about 2x wider than high. These items are not in the print catalog. They also have 1/16" & 3/16" thicknesses, but a limited selection of heights. Regards, RonB ------------------------------ Message: 9 Date: Wed, 28 Apr 2004 10:47:57 -0500 From: "Ron Eason" Subject: Re: KR> delaminations! To: "KRnet" Message-ID: <015d01c42d38$2dc4b0a0$6701a8c0@JRLENGINEERING> Content-Type: text/plain; charset="iso-8859-1" Brian, Tom Gleaser built a KR2 in the 80's and had the same problem, I think it's fairly common. Maybe you know this, but here it is. I worked for 5 years in a R&D lab and in that time we tested Urethane foam for structural and thermal properties. We found that with urethane [ and all two component chemicals] : if the foam [epoxy or what have you] did not fully react [ due to varying amb. temperatures , mostly] the foam would finish it's reaction later. The additional reaction produces off gases which will form a bubble under the fiberglass. Post curing after the foam is finished [sanded], is a good idea. Problem is, you don't know until you bird is parked in the summer sun for a while. KRron ----- Original Message ----- From: "Brian Kraut" To: "KRnet" Sent: Tuesday, April 27, 2004 8:46 PM Subject: RE: KR> delaminations! > You are correct that it is usually not a big problem if the glass separates > from the foam in some places. Most KRs I have seen have seperation in > some places. My only concern was cosmetic. My last KR had a big > bubble near the > trailing edge. It looked O.K. on cold days, but the glass expanded > when it > was hot and bubbled. > > Brian Kraut > Engineering Alternatives, Inc. > www.engalt.com > > -----Original Message----- > From: krnet-bounces@mylist.net [mailto:krnet-bounces@mylist.net]On > Behalf Of larry flesner > Sent: Tuesday, April 27, 2004 9:07 AM > To: KRnet > Subject: RE: KR> delaminations! > > > >I have thought of taking something like a thin steel ruler and > >putting 1/4" > >deep grooves in the foam in a 6" X 6" grid pattern before putting on > >the micro. That would prevent the glass from separating from the > >foam and also > >give it a little more stiffness while adding very little weight. Has > anyone > >ever tried this? Maybe I will do some test pieces. > >Brian Kraut > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > The foam will just fail with a "grid" pattern attached. I really > don't see > the need for anything more than sealing the foam with whatever method > you chose and glassing it. How many KRs have flown before us using > that method and how many have fallen from the sky because of the > epoxy/fiber delaminating from the foam? > > It's a beautiful morning out and I need to run by the hangar. I think I'll > take my ol' "hard-shelled" bird up for a quick flight! :-) > > Larry Flesner > > > > _______________________________________ > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > > > _______________________________________ > 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: 10 Date: Wed, 28 Apr 2004 18:15:41 +0200 From: "Stephen Jacobs" Subject: RE: KR> Larry F To: "'KRnet'" Message-ID: <000001c42d3c$11557f40$5964a8c0@homedesktop> Content-Type: text/plain; charset="us-ascii" I think you're being an optimist ... try it on my next flight. ................................................................... Thanks Larry - please be careful. ------------------------------ Message: 11 Date: Wed, 28 Apr 2004 14:13:44 -0400 From: "Brian Kraut" Subject: KR> engine choices To: "KRnet" Message-ID: Content-Type: text/plain; charset="us-ascii" Without stirring up the debate on which engine is best for a KR, does anyone know where I can find a relatively unbiased comparison and list pros and cons for the various suitable KR engines including the VW, Corvair, Subaru, and Mazda? Brian Kraut Engineering Alternatives, Inc. www.engalt.com ------------------------------ Message: 12 Date: Wed, 28 Apr 2004 17:30:34 EDT From: SkyVisionSC@aol.com Subject: Re: KR>Source for aluminum "T" stock. To: krnet@mylist.net Message-ID: Content-Type: text/plain; charset="US-ASCII" Hello... I am owner of a sign co in S.C. and buy all sorts of aluminum from a wholesale supplier. I have often perused the price lists of A/C suppliers with certain shock, and can assure you that these items can be had for much less! Call me if I'm not too far away from you, and I'll read the prices for various shapes from my metals catalog. My phone is (864)-585-3327 Thanks...Sherman Swofford Skyvision Sign Co. Spartanburg, S.C. ------------------------------ Message: 13 Date: Wed, 28 Apr 2004 17:49:50 -0400 From: "Doug Rupert" Subject: RE: KR> engine choices To: "'KRnet'" Message-ID: <002501c42d6a$ccc14ce0$3d04e440@office> Content-Type: text/plain; charset="us-ascii" Been monitoring the rotary channel even though it is biased but I personally they might just be the way to go even though they are on the high side of the power curve for our little birds and would call for some serious reinforcement of the firewall to longeron area. You are getting into an area of some serious horsepower and torque that could easily take us into uncharted territory as to Vne. The pros of the rotary are virtual lack of vibration and reduction of moving parts that could cause a catastrophic failure. I may further investigate the rotary at a later date when contemplating a major structural enlargement of the airframe. Doug Rupert Simcoe Ontario -----Original Message----- From: krnet-bounces@mylist.net [mailto:krnet-bounces@mylist.net] On Behalf Of Brian Kraut Sent: Wednesday, April 28, 2004 2:14 PM To: KRnet Subject: KR> engine choices ------------------------------ Message: 14 Date: Wed, 28 Apr 2004 17:48:13 -0700 From: larry severson Subject: KR> hole in LE To: KRnet Message-ID: <5.2.1.1.0.20040428174559.00b769a0@pop-server.socal.rr.com> Content-Type: text/plain; charset="us-ascii"; format=flowed I am going to have to patch a hole on the leading edge. matching the contour is easy, but do I have to remove all of the paint, primer, and filling down to the glass to get a good patch adhesion on the 1-2 in around the hole. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 larry2@socal.rr.com ------------------------------ Message: 15 Date: Thu, 29 Apr 2004 01:01:14 +0000 From: "orma" Subject: Re: KR> hole in LE To: KRnet Message-ID: <20040429010118.16708.qmail@host203.com> Content-Type: text/plain; charset="iso-8859-1" do I have to remove all of the paint, primer, and filling down The short answer is yes. To get an acceptable bond of glass to glass. Orma ------------------------------ Message: 16 Date: Wed, 28 Apr 2004 21:38:09 -0400 From: "Brian Kraut" Subject: RE: KR> hole in LE To: "KRnet" Message-ID: Content-Type: text/plain; charset="us-ascii" Yes, and that is a good thing. Sand down to the glass about 3" all the way around the hole. Put in some more foam if you need to and sand the foam down so it is just a tiny bit lower than the glass. Cut out one glass patch about 1/2" bigger than the hole all the way around, one about 1" bigger, and one about 2" bigger than the hole. Use just epoxy with no micro and put on the three patches. After you have the patches on cover them with bagging film or peel ply and tape them on snug so they pull all the glass and epoxy up against the leading edge. The great thing about having to sand the filler and primer off is that after you lay the new glass on and snug it up tight while it dries you should be left with a repair that is slightly below the level of the paint on the unrepaired area. I had to cut holes in my wing to put in more aileron hinge nut plates and did this. After the patches dried I just sanded them a little and rolled on some Smooth prime a little thick to get a perfectly level surface with the unrepaired area. No filler was required in my case. Be sure to cover the repair with something stretched over the leading edge to keep the new glass pushed down against the old glass when it dries. That will prevent you from having to sand down the new glass to get a level surface. For small holes I have just put on a piece of 2" packing tape right over the wet epoxy. Brian Kraut Engineering Alternatives, Inc. www.engalt.com -----Original Message----- From: krnet-bounces@mylist.net [mailto:krnet-bounces@mylist.net]On Behalf Of larry severson Sent: Wednesday, April 28, 2004 8:48 PM To: KRnet Subject: KR> hole in LE I am going to have to patch a hole on the leading edge. matching the contour is easy, but do I have to remove all of the paint, primer, and filling down to the glass to get a good patch adhesion on the 1-2 in around the hole. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 larry2@socal.rr.com _______________________________________ 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: 17 Date: Wed, 28 Apr 2004 21:58:00 -0400 From: "Brian Kraut" Subject: KR> RV grin To: "KRnet" Message-ID: Content-Type: text/plain; charset="us-ascii" One thing I forgot on my Sun and Fun report. I took a demo ride in an RV-9 (no throwing rotten tomatoes at me please, it was a free ride that I couldn't pass up). It climbs like a homesick angel and has great performance. It is roomy and is whole lot more fun that any Wichita spam can, but I have to say that the RV grin is not even in the same league as the KR grin. The KR beats it hands down by an order of magnitude in the fun factor. In all fairness to Dana and the thousands of other RV owners, it is a great plane and has the KR beat in some areas, but fun flying certainly is not one of them. Brian Kraut Engineering Alternatives, Inc. www.engalt.com ------------------------------ Message: 18 Date: Wed, 28 Apr 2004 21:13:03 -0500 From: "Mike Turner" Subject: Re: KR> Make your WAFs and wings inspectable!! To: , "KRnet" Message-ID: Content-Type: text/plain; charset="iso-8859-1" Serge, in regards to touque I don't have the plans in front of me right now but I don't remember a value being set for torque other than not crushing the wood by getting the waf bolts too tight. So if the wood is not crushed and the bolts are not loose and other than checking for corrosion I don't know what else could be expected of you? Mike Turner ----- Original Message ----- From: Serge F. Vidal To: 'KRnet' Sent: Monday, April 26, 2004 11:46 AM Subject: KR> Make your WAFs and wings inspectable!! Netters, This is the latest episode of my story of a South-African built KR2 that I am now trying to register in France. This piece will come with a word of warning: guys, make sure your WAFs and wings will remain inspectable in the future!! I went to Orleans this week-end, and spent a few hours working on my plane, with the aim of preparing it for the inspection of all critical areas, as agreed with the local inspectors. Let's say I had no success. - First of all, my attempt to drill inspection holes along the spars was a mess. I used the wrong drill, it hadn't got a variator; the spar end surfaces were not flat either... oh well, never mind, I'll find a better idea for next time. - Second, I got a very bad surprise while I was trying to drill inspection holes for the WAFs nuts and bolts. Not only had they been painted over, but also, some of them had been epoxied over! I suspect the reason is when long range aluminium fuel tanks were installed in the leading edge of the stubwings, the guy who did it found it convenient to repaint the bolts, ; then, he moved the stringer, and epoxied it in place without bothering about the bolts... Now, this is bad, because it is now impossible to check the bolts for corrosion, let alone to check their torque, which is what the inspector requested. So, I'm back a few steps. I guess I will have to find a way to remove and replace those bolts! On the bright side, the experimental club has got a Jodel D18 for hire, at a bargain proce, so that will keep me busy! Serge Vidal KR2 ZS-WEC - Taildragger, VW powered (2.4 liter, dual electronic ignition) - Total aircraft time: 390h - Aircraft hangared at: Orleans, France - Pilot moaning in: Tunis, Tunisia E-mail: serge.vidal@ate-international.com _______________________________________ 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: Wed, 28 Apr 2004 21:32:16 -0500 From: Steve Eberhart Subject: Re: KR> RV grin To: KRnet Message-ID: <40906930.2050304@newtech.com> Content-Type: text/plain; charset=us-ascii; format=flowed Brian Kraut wrote: > One thing I forgot on my Sun and Fun report. > > I took a demo ride in an RV-9 (no throwing rotten tomatoes at me > please, it was a free ride that I couldn't pass up). It climbs like a > homesick angel and has great performance. It is roomy and is whole > lot more fun that any Wichita spam can, but I have to say that the RV > grin is not even in the same league as the KR grin. The KR beats it > hands down by an order of magnitude in the fun factor. > > In all fairness to Dana and the thousands of other RV owners, it is a > great plane and has the KR beat in some areas, but fun flying > certainly is not one of them. Apples vis-a-vis oranges. I tend to think that the closer your airplane matches the mission profile of how you want to use an airplane the larger the grin. Why can't I like my airplane just as much as you like yours without one of us being wrong? Steve Eberhart http://www.newtech.com/n14se/ ------------------------------ Message: 20 Date: Wed, 28 Apr 2004 21:52:34 -0500 From: "Ron Eason" Subject: Re: KR> engine choices To: "KRnet" Message-ID: <000e01c42d95$0654bc10$6701a8c0@CADENGINEERING> Content-Type: text/plain; charset="iso-8859-1" When I was contemplating the question years ago. My number one criteria was HP/Wt. ratio for the engine installed. Getting below 2 Lbs/HP was a noble goal [3 lbs/HP was out of the ball park. Give anything else, you can make a good case for anyone. Just looking at HP alone will not help your bird any fly any better. In the end any engine you use comes down to plane Wt / HP @ cruse RPM. And given enough money you can make any of the engines reliable.[ i.e.. fuel injection and electronic ignition, stronger materials and etc.] For example look at the Jabaru Hp/Wt. KRron ----- Original Message ----- From: "Brian Kraut" To: "KRnet" Sent: Wednesday, April 28, 2004 1:13 PM Subject: KR> engine choices > Without stirring up the debate on which engine is best for a KR, does anyone > know where I can find a relatively unbiased comparison and list pros > and cons for the various suitable KR engines including the VW, > Corvair, Subaru, > and Mazda? > > Brian Kraut > Engineering Alternatives, Inc. > www.engalt.com > > > _______________________________________ > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > ------------------------------ Message: 21 Date: Wed, 28 Apr 2004 21:09:21 -0600 From: "Kevin Angus" Subject: KR> type 1 engine bell housing bolt onto a type four engine? To: "Ron Eason" , "KRnet" Message-ID: Content-Type: text/plain; charset="us-ascii" I was trying to figure out if a bell housing from a type 1 engine would bolt onto a type four engine? Thanks ------------------------------ Message: 22 Date: Wed, 28 Apr 2004 22:19:29 -0500 From: "JW" Subject: Re: KR> RV grin To: "KRnet" Message-ID: <001901c42d98$c8fa6af0$d8df1818@computer> Content-Type: text/plain; charset="iso-8859-1" You guys are both right. An RV is nothing less than an awsome airplane. It's only comparision to a KR is that it's an airplane, they are in a different class (not literly). The RV while being roomy and fast cost a whole lot more to build than a KR and not to mention the fuel burn is about double. I orginally started with building an RV6. The plans and builder's manual are just amazing, makes building the plane a simple follow the instructions not trying to figure out what the book means. The RV idea got shot down due to it being too expensive for my and my partner's blood. I have flown in an RV6,6a,4. They are very easy to fly, not to mention stable on take off and landing (tailwheel). Almost a fully areobatic airplane at that. I have seen an RV4 go through 2 prop strikes and a groundloop with no structual damage so they are tough airplanes. Not taking sides here on RV VS KR, Justin ----- Original Message ----- From: "Steve Eberhart" To: "KRnet" Sent: Wednesday, April 28, 2004 9:32 PM Subject: Re: KR> RV grin > Brian Kraut wrote: > > One thing I forgot on my Sun and Fun report. > > > > I took a demo ride in an RV-9 (no throwing rotten tomatoes at me > > please, it > > was a free ride that I couldn't pass up). It climbs like a homesick angel > > and has great performance. It is roomy and is whole lot more fun > > that any > > Wichita spam can, but I have to say that the RV grin is not even in > > the same > > league as the KR grin. The KR beats it hands down by an order of magnitude > > in the fun factor. > > > > In all fairness to Dana and the thousands of other RV owners, it is > > a great > > plane and has the KR beat in some areas, but fun flying certainly is > > not one > > of them. > > Apples vis-a-vis oranges. I tend to think that the closer your > airplane matches the mission profile of how you want to use an > airplane the larger the grin. Why can't I like my airplane just as > much as you like yours without one of us being wrong? > > Steve Eberhart > http://www.newtech.com/n14se/ > > > _______________________________________ > 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: 23 Date: Wed, 28 Apr 2004 23:24:16 -0400 From: "Brian Kraut" Subject: RE: KR> engine choices To: "Ron Eason" , "KRnet" Message-ID: Content-Type: text/plain; charset="us-ascii" If money was no object I would put in a new Jabiru 3300. I spent many hours at SNF staring at the one on display. That engine is a work of art. Brian Kraut Engineering Alternatives, Inc. www.engalt.com -----Original Message----- From: krnet-bounces@mylist.net [mailto:krnet-bounces@mylist.net]On Behalf Of Ron Eason Sent: Wednesday, April 28, 2004 10:53 PM To: KRnet Subject: Re: KR> engine choices When I was contemplating the question years ago. My number one criteria was HP/Wt. ratio for the engine installed. Getting below 2 Lbs/HP was a noble goal [3 lbs/HP was out of the ball park. Give anything else, you can make a good case for anyone. Just looking at HP alone will not help your bird any fly any better. In the end any engine you use comes down to plane Wt / HP @ cruse RPM. And given enough money you can make any of the engines reliable.[ i.e.. fuel injection and electronic ignition, stronger materials and etc.] For example look at the Jabaru Hp/Wt. KRron ----- Original Message ----- From: "Brian Kraut" To: "KRnet" Sent: Wednesday, April 28, 2004 1:13 PM Subject: KR> engine choices > Without stirring up the debate on which engine is best for a KR, does anyone > know where I can find a relatively unbiased comparison and list pros > and cons for the various suitable KR engines including the VW, > Corvair, Subaru, > and Mazda? > > Brian Kraut > Engineering Alternatives, Inc. > www.engalt.com > > > _______________________________________ > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > _______________________________________ 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: 24 Date: Wed, 28 Apr 2004 22:31:55 -0500 From: "JW" Subject: Re: KR> engine choices To: "Ron Eason" , "KRnet" Message-ID: <002501c42d9a$85bb61c0$d8df1818@computer> Content-Type: text/plain; charset="iso-8859-1" Although alittle off subject about your orginal question, I just want to throw this in. The Mazda Rotary engine is a without doubt awsome engine. My dad drives an RX-7 (13B engine) and it is sucha silk smooth engine. If it wasnt for the RPM buzzer there is no doubt that you will go into and exceed redline without knowing it. They are indirectly designed to do what we need of them in an airplane, Run at high RPM producing lots of power with little weight not to mention very reilable. The only thing that really fails on them is the apex seal which when they go out it just gets hard to start. A hanger buddy of mine was sharing a story about the 3 rotor engine going into a legacy. The owner of the Legacy was just testing his engine with no gearbox or prop on it but on the airplane. He was reving it up by gunning the engine and actually over reved the engine, causing the heavy flywheel to come apart (shows how high they can rev without realizing it). The only undesirable effect of this engine in a KR would be it's fuel consumption. It will burn slighty more than a typical lycoming. An O-200 is about 6 at cruise while the rotary is proubly about 10gph. Justin ----- Original Message ----- From: "Ron Eason" To: "KRnet" Sent: Wednesday, April 28, 2004 9:52 PM Subject: Re: KR> engine choices > When I was contemplating the question years ago. My number one > criteria was > HP/Wt. ratio for the engine installed. Getting below 2 Lbs/HP was a > noble goal [3 lbs/HP was out of the ball park. Give anything else, you > can make a > good case for anyone. Just looking at HP alone will not help your > bird any > fly any better. In the end any engine you use comes down to plane Wt / > HP @ > cruse RPM. And given enough money you can make any of the engines > reliable.[ i.e.. fuel injection and electronic ignition, stronger materials > and etc.] > For example look at the Jabaru Hp/Wt. > > KRron > > ----- Original Message ----- > From: "Brian Kraut" > To: "KRnet" > Sent: Wednesday, April 28, 2004 1:13 PM > Subject: KR> engine choices > > > > Without stirring up the debate on which engine is best for a KR, > > does > anyone > > know where I can find a relatively unbiased comparison and list pros > > and cons for the various suitable KR engines including the VW, > > Corvair, > Subaru, > > and Mazda? > > > > Brian Kraut > > Engineering Alternatives, Inc. > > www.engalt.com > > > > > > _______________________________________ > > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > > please see other KRnet info at http://www.krnet.org/info.html > > > > > > > > _______________________________________ > 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 346, Issue 48 ************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================