From: krnet-bounces@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 346, Issue 77 Date: 8/18/2004 8:59:46 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. Re: Plan #'s (VIRGIL N SALISBURY) 2. Re: Plan #'s (James R Freeman) 3. Re: Plan #'s (Mark Langford) 4. Re: Plan #'s (Mark Langford) 5. Re: Plan #'s (Orma) 6. Re: Engine Problems (Kenneth B. Jones) 7. Re: Plan #'s (TNCOMPRESSORMAN@aol.com) 8. Your EAA visit. (Mark Jones) 9. Website (Jack Cooper) 10. Re: Engine Problems (Barry Kruyssen) ---------------------------------------------------------------------- Message: 1 Date: Wed, 18 Aug 2004 20:30:24 -0400 From: VIRGIL N SALISBURY Subject: Re: KR> Plan #'s To: krnet@mylist.net Message-ID: <20040818.203740.3428.3.virgnvs@juno.com> Content-Type: text/plain; charset=us-ascii #6123 may be the registration #, check w/RR, Virg On Wed, 18 Aug 2004 17:30:12 -0400 "Orma" writes: > I am looking at my builders book and realized that I do not fully > know what the hand scribed numbers at the top right of my book mean. > On top is "# 6123" and on the bottom is "book 59". Does anyone > have the correct meaning of the top number. Also, I remember some > of the earlier discussion about stall speeds and VNE, my cover lists > numbers for the KR-2 and Turbo KR-2. Of interest is the Stall speed > of 42 MPH and the Top Speed of 210, for the Turbo KR-2. > > Orma > Southfield, MI > N110LR celebrating 20 years > To the gathering or bust _______________________________________ > 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 ------------------------------ Message: 2 Date: Wed, 18 Aug 2004 21:34:55 -0400 From: James R Freeman Subject: Re: KR> Plan #'s To: KRnet Message-ID: <02cf01c4858c$f60d29f0$46b774cc@HP> Content-Type: text/plain; charset=iso-8859-1 Orma: On the older plans the number at the top right is the SN#. I have two set of plans, one is in the 800 range and the second is 1500 and some. I do have the invoice on one set and it listed the same SN# as the book. Jim ----- Original Message ----- From: "Orma" To: "KRnet" Sent: Wednesday, August 18, 2004 5:30 PM Subject: KR> Plan #'s > I am looking at my builders book and realized that I do not fully know what the hand scribed numbers at the top right of my book mean. On top is "# 6123" and on the bottom is "book 59". Does anyone have the correct meaning of the top number. Also, I remember some of the earlier discussion about stall speeds and VNE, my cover lists numbers for the KR-2 and Turbo KR-2. Of interest is the Stall speed of 42 MPH and the Top Speed of 210, for the Turbo KR-2. > > Orma > Southfield, MI > N110LR celebrating 20 years > To the gathering or bust _______________________________________ > 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: 3 Date: Wed, 18 Aug 2004 21:05:53 -0500 From: "Mark Langford" Subject: Re: KR> Plan #'s To: "KRnet" Message-ID: <1c8d01c48591$0f6e8570$1202a8c0@basement> Content-Type: text/plain; charset="iso-8859-1" Orma wrote: >Of interest is the Stall speed of 42 MPH and the Top Speed of 210, for >the Turbo KR-2. A "top speed" of 210 mph???? So much for the mythical 200 mph Vne! I've always wondered where the 200 mph number came from (although I have my idea of exactly which cavity), but now we have printed evidence that at some point 210 mph was considered acceptable. And it only took 10 years for this to rise to the surface. See http://home.hiwaay.net/~langford/210mph_Vne.jpg for the proof. And I've just got to say that somebody needs to go back to drafting school on this side view. I forget the exact number, but I'm looking forward to seeing you guys at Mt. Vernon. I ran the KR last night for the EAA chapter, and they were dumbfounded at how smooth it ran. It's like an electric motor....flip the switch and it immediately runs...flip it off and it stops immediately. Gotta love it... Mark Langford, Huntsville, Alabama N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford ------------------------------ Message: 4 Date: Wed, 18 Aug 2004 21:27:20 -0500 From: "Mark Langford" Subject: Re: KR> Plan #'s To: "KRnet" Message-ID: <1cbb01c48594$12b8c710$1202a8c0@basement> Content-Type: text/plain; charset="iso-8859-1" Quick...somebody check the numbers on the thing I just posted and see if your math is as bad as mine. 900 pound gross weight with 60 gallons of fuel (?)...wouldn't that mean the pilot can only weigh 40 pounds? 200 mph "cruise" speed? It's amazing that 15 horsepower can raise your top end from 140 to 200, isn't it? And people wonder if these numbers are accurate. This proves the "composite" theory. Somebody at OSH asked the question "can you believe all of the published RR specs", and I think this is your answer. But don't get me wrong...you can build your favorite version of this thing just like you want it , but you can't have it all at the same time. I'm already real happy with mine, and I'm not even flying it yet... Mark Langford, Huntsville, Alabama N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford ------------------------------ Message: 5 Date: Wed, 18 Aug 2004 22:26:29 -0400 From: "Orma" Subject: Re: KR> Plan #'s To: "KRnet" Message-ID: <002601c48593$f0671270$442bd445@ROBBINS1> Content-Type: text/plain; charset="iso-8859-1" This is like poking fun at yourself, after a long hard day of trying to reach your dreams. Orma Southfield, MI N110LR celebrating 20 years To the gathering or bust ------------------------------ Message: 6 Date: Wed, 18 Aug 2004 22:40:10 -0400 From: "Kenneth B. Jones" Subject: Re: KR> Engine Problems To: "KRnet" Message-ID: <02ea01c48595$d9023b80$647ba8c0@oemcomputer> >----- Original Message ----- >From: "Barry Kruyssen" > 1. Is 120hp to much for a standard KR2? > 2. Is 85hp to little for a standard KR2? > 3. What hp is recommended for a standard KR2? (the Rand Robinson Engineering web page recommends >a VW 2100, what hp is that?) Barry, I purchased a KR-2, finished very roughly, empty weight of 619 lbs, no gear fairings, tricycle gear, blunt cowling (with bumps to clear plugs and engine mounts), standard canopy and Diehl wing skins (longer). It has a Continintal A65 (65 HP @ 2300 rpm) and a 3 blade Warp Drive tapered blade 58" prop set at 64.5" pitch. Static run up is 2200 rpm. Results after 16.5 hours at a total weight of about 890 lbs. are: economy cruise at 2000 rpm & ~3.5 gph is 121 mph, cruise at 2150 rpm & ~4.4 gph is 132 mph and flat out at 2300 rpm & about 5.7 gph is 143 mph. With these numbers my "very rough" KR-2 should do 157 mph with 85 HP or 176 mph with 120 HP. Kitplanes annual kit review quotes KR-2 performance, 180 mph cruise, based on a 76 hp VW 2100cc engine. Ken Jones N5834 ------------------------------ Message: 7 Date: Wed, 18 Aug 2004 22:46:02 EDT From: TNCOMPRESSORMAN@aol.com Subject: Re: KR> Plan #'s To: krnet@mylist.net Message-ID: <45.13903d05.2e556e6a@aol.com> Content-Type: text/plain; charset="US-ASCII" In a message dated 8/18/2004 10:02:57 PM Eastern Standard Time, N56ML@hiwaay.net writes: A "top speed" of 210 mph???? So much for the mythical 200 mph Vne! I've always wondered where the 200 mph number came from (although I have my idea I read somewhere, years ago, that Ken Rand was getting 212mph TAS at high altitude with the turbo. I'm sure the boost had to be very high and the 2100 screaming at some outrageous rpm. Bet a constant speed prop would really kick a KR into hyperspeed. Just my 2 cents Riley Collins ------------------------------ Message: 8 Date: Wed, 18 Aug 2004 21:52:44 -0500 From: "Mark Jones" Subject: KR> Your EAA visit. To: "KRnet" Message-ID: <002101c48597$9aa9ed40$6401a8c0@wi.rr.com> Content-Type: text/plain; charset="iso-8859-1" Langford, Do you have any photos of the EAA visit on your web site yet? Are you the only KR builder in your chapter? How do they view the KR overall? Mark Jones (N886MJ) Wales, WI USA E-mail me at flykr2s@wi.rr.com Visit my KR-2S CorvAIRCRAFT web site at http://mywebpage.netscape.com/n886mj/homepage.html ------------------------------ Message: 9 Date: Wed, 18 Aug 2004 23:49:40 -0400 From: "Jack Cooper" Subject: KR> Website To: "KR builders and pilots" Message-ID: <410-22004841934940421@earthlink.net> Content-Type: text/plain; charset=US-ASCII KR netters I have been working on my website today consolidating what used to be three pages of pictures into one page. It just happens to be my 2003 KR Gathering photos. Why do I go to gatherings? Take a look. This year I'll be taking lots of pictures of engine installations. http://jackandsandycooper.com/2003gathering5.html Jack Cooper kr2cooper@earthlink.net Why Wait? Move to EarthLink. ------------------------------ Message: 10 Date: Thu, 19 Aug 2004 13:50:19 +1000 From: "Barry Kruyssen" Subject: Re: KR> Engine Problems To: "KRnet" Message-ID: <035a01c4859f$c6354290$7000a8c0@technologyonecorp.com> Content-Type: text/plain; charset="iso-8859-1" Hi All, Well the decision has been made (I can sleep tonight, though much poorer now). I'm scrapping the Hirth and replacing it with a 85hp Jabiru engine (the 120hp engine is expensive and too heavy which would require a major rework) At the same time I'm replacing the retractable under carriage with the Jabiru tail dragger gear, wheels, brakes and wheel spats, all for $2500 Australian. There are 2 reasons to upgrade: 1. My retractable gear is fixed down and looks like two barn doors in the slip stream, 2. I need the extra height and bigger wheels as I'm operating from a grass strip and Jabiru recommends a 60" diameter prop, which brings me to my next question. (remember I know nothing about propping an aircraft) The engine and prop should perform as follows: static run up 2700 to 2900 (2800rpm 74hp 150ft lbs torque) cruise 2750 to 3000 (3000rpm 81hp 140ft lbs torque) any lower rpm and it really sucks fuel max 3300 (85hp 138ft lbs torque) Jabiru props come in the following sizes for their Jabiru aircraft (see http://www.jabiru.net.au ) dia x pitch 60" x 42" recommended for fast climb 60" x 44" recommended for slower climb but 5kts + speed 60" x 48" for their 6 cylinder aircraft 60" x 53" for their 6 cylinder aircraft Which of the above would be best for a standard KR2? Thanks Barry ----- Original Message ----- So I'm thinking of scrapping the Hirth and putting in a Jabiru 85hp @ 60kg or 120hp @ 81kg. My Hirth is/was 92hp @ 52kg. The smaller engine is preferable as the weight will be easier to deal with, But we all want HORSEPOWER. ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 346, Issue 77 ************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================