KR> Speeds
> >My question is simply this; On a stock retractable gear KR2 what is the >maximum safe continous safe real world operating speed assuming a properly >built aircraft? > +++ Design Vne is 200 mph. You decide what's comfortable in anything but smooth air. Unless you're flying a 550 pound KR with 100+ hp you'll never see 200mph in cruise. Larry Flesner flesner at frontier.com
KR> Speeds
Doran Jaffas wrote: > My question is simply this; On a stock retractable gear KR2 what is > the maximum safe continous safe real world operating speed assuming a > properly built aircraft? You didn't specify an engine, so I assume you mean airframe Vne, which is listed as 200 MPH in the plans (page 3 of my plans) and other promotional data. If you are talking about engines, then please see http://www.krnet.org/kr-info.html for a clue on that. Mark Langford ML at N56ML.com http://www.n56ml.com
KR> Speeds
Hello Everyone I've read quite abit about expected airspeeds. Some contradicting each other. Depending on the engines used there seems to be quite a variation My question is simply this; On a stock retractable gear KR2 what is the maximum safe continous safe real world operating speed assuming a properly built aircraft? May have been already asked so feel free to point me in the right direction. Thank You
KR> KR speeds
OK, I hate to be this way, but this one's for real KR pilots only. Please send me your speedsrotation, climbout, pattern, approach, and approximate touchdown speeds, and anything else that a prospective KR test pilot might need. And it might not hurt to remind me what engine you have in it, and whether or not you have flaps or belly board. I might need these one of these days... Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net --
KR> KR speeds
Hi Mark, As you know, I currently have a VW 2180 (Not for long ;)- I leave for FL. tomorrow). All number are MPH. I like to rotate at 70 and typically use 100 - 110 for climb out unless I need to climb faster. I then use between 80 - 90 for best climb. Pattern is usually at 110 - 130 depending on traffic at the time. I use 90 - 100 on base and 80 on final. I am about 70 over the numbers and let it settle. I wheel land because I like having the speed just in case down low. I touch down around 55 - 65. I do not have flaps or a belly board and slip it in on finalOh yeah, I forgot we went up together at the Gathering. So you kinda know how my plane flys the pattern and on final. I'm sure your plane will be way smoother than mine but the overall speeds should be pretty close. Good luck! I can't wait to hear the flight report. Steve Glover KR-2 N902G AJO, Ca-- OK, I hate to be this way, but this one's for real KR pilots only. Please send me your speedsrotation, climbout, pattern, approach, and approximate touchdown speeds, and anything else that a prospective KR test pilot might need. And it might not hurt to remind me what engine you have in it, and whether or not you have flaps or belly board. I might need these one of these days...
KR> Speeds
Mark I had the 1835 cc VW and also have the RAF48 wing, so take with a grain of salt: Once the static port was accurate, stall power on was 49mph, power off 52mph. Anything under 60 and it was really mushy and about half the response from the controls as above that. I found my Vx climb to be 85 mph but engine temp rose quickly, so only good for first 400-500 feet or so. 95 to 100 mph was best cooling climb and Vy or best rate. In the pattern 105 to 110 mph on downwind, base first notch of the belly board 25 degrees slow to between 95 - 100 mph, final at 3/4 mile last notch of 50 degrees belly board, and slow to 85 mph. This made for a steady as rails approach, even in wind. Roundout in the grass before the numbers it slows immediately to 80, holding it in ground effect about 2 feet off and it slow thru 75 to 70 and begins to settle. Slight back pressure to just kiss the mains, and as they come on between 65 - 60 mph, "roll on" the forward pressure to hold the tail up, and let it slow by itself. Depending on the wind it will separate from the runway at between 65 and 75 (and weight). This may change with the Corvair but not much. All else does not rely on the engine but mainly CG, weight, and configuration. Also, I leave in idle power plus a couple of hundred rpms. This also helps to stabilize the glide and prevent shock cooling of the engine. Colin
KR> KR speeds
Take off roll rotate at 60 mph, lift off is between 65-70 mph. Climb 90 mph for 1150 fpm climb. Enter downwind at 100-110 mph. Reduce power and turn base, 90 mph base leg. Turn final, drop speed brake 1/2 way down maintain 85 mph. 1/2 mile out, full deflected speed brake, speed bleeds to 80 mph. Over the numbers at 70 mph. Flare and hold off till touch down at 65. With the new airfoil, my KR will not float far in ground effect, rather she will set right down and stay there. Note: I have made landings at speeds as high as 90 mph at touchdown but used about 3/4 of the runway to stop at high speed landing. Touching down at 65 mph my KR will stop in 1/3 or the runway length. I use a 3000' paved runway. Mark Jones (N886MJ) Wales, WI -Original Message- OK, I hate to be this way, but this one's for real KR pilots only. Please send me your speedsrotation, climbout, pattern, approach, and approximate touchdown speeds, and anything else that a prospective KR test pilot might need. And it might not hurt to remind me what engine you have in it, and whether or not you have flaps or belly board. I might need these one of these days... Mark Langford, Huntsville, Alabama
KR> KR speeds
What about cruise and vne. If the speeds you requested vary from aircraft modifications. Would it necessarily follow that other speeds may be effected? I may be all wet on this one. - Original Message - From: "Mark Langford" <n5...@hiwaay.net> To: "KRnet" <kr...@mylist.net> Sent: Wednesday, May 11, 2005 7:51 PM Subject: KR> KR speeds > OK, I hate to be this way, but this one's for real KR pilots only. Please > send me your speedsrotation, climbout, pattern, approach, and > approximate touchdown speeds, and anything else that a prospective KR test > pilot might need. And it might not hurt to remind me what engine you have > in it, and whether or not you have flaps or belly board. I might need these > one of these days... > > 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-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html
KR> KR speeds MPH ?
I have asked this before, and still not sure as to why in the US you use MPH. Are all ASI's in the US calibrated in MPH, or you convert from knots. I know the conversion is not difficult, but why?. For some reason I thought all aircraft use Knots as the ASI calibration?? Just a question. Phillip Matheson mathe...@dodo.com.au Australia VH PKR See our engines and kits at. http://www.vw-engines.com/ http://www.homebuilt-aviation.com/ See my KR Construction web page at http://mywebpage.netscape.com/FlyingKRPhil/VHPKR.html Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
KR> KR speeds MPH ?
Phil Some have both,but most are in knots... - Original Message - From: "Phillip Matheson" <mathe...@dodo.com.au> To: "KRnet" <kr...@mylist.net> Sent: Thursday, May 12, 2005 6:39 PM Subject: Re: KR> KR speeds MPH ? >I have asked this before, and still not sure as to why in the US you use > MPH. > Are all ASI's in the US calibrated in MPH, or you convert from knots. > > I know the conversion is not difficult, but why?. > > For some reason I thought all aircraft use Knots as the ASI calibration?? > Just a question. > > > Phillip Matheson > mathe...@dodo.com.au > Australia > VH PKR > See our engines and kits at. > http://www.vw-engines.com/ > http://www.homebuilt-aviation.com/ > See my KR Construction web page at > http://mywebpage.netscape.com/FlyingKRPhil/VHPKR.html > > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@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-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html >
KR> KR speeds MPH ?
We probably use MPH because our other vehicles are all in MPH and we can relate to MPH better than we can to knots. See you in Mt. Vernon - 2005 - KR Gathering See N64KR at http://KR-Builder.org - Then click on the pics There is a time for building and a time for FLYING and the time for building has expired. Daniel R. Heath - Columbia, SC ---Original Message--- why in the US you use MPH.
KR> KR speeds
Sorry forgot to sign it Mike Turner, Jackson, Missouri - Original Message - From: Mike Turner<mailto:aviato...@msn.com> To: KRnet<mailto:kr...@mylist.net> Sent: Thursday, May 12, 2005 9:22 PM Subject: Re: KR> KR speeds Correction! - Original Message - From: Mark Jones<mailto:mjo...@muellersales.com<mailto:mjo...@muellersales.com>> To: KRnet<mailto:kr...@mylist.net<mailto:kr...@mylist.net>> Sent: Thursday, May 12, 2005 7:49 AM Subject: RE: KR> KR speeds Take off roll rotate at 60 mph, lift off is between 65-70 mph. "YEE___H" Climb 90 mph for 1150 fpm climb. Enter downwind at 100-110 mph. Reduce power and turn base, 90 mph base leg. Turn final, drop speed brake 1/2 way down maintain 85 mph. 1/2 mile out, full deflected speed brake, speed bleeds to 80 mph. Over the numbers at 70 mph. Flare and hold off till touch down at 65. With the new airfoil, my KR will not float far in ground effect, rather she will set right down and stay there. Mark Jones (N886MJ) Wales, WI ___ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp<http://www.maddyhome.com/krsrch/index.jsp> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net<mailto:krnet-le...@mylist.net> please see other KRnet info at http://www.krnet.org/info.html<http://www.krnet.org/info.html>
KR> KR speeds MPH ?
Phil, After WWII, all the US manufacturers tried to market private aircraft as "an extra car, only faster". If you have a look at, say, a Cessna 172, you will notice that all accessories like door handles, windows retainers, etc. are car stuff from the 1950's, and this is not by chance! Aircraft had to look as familiar as possible to the average driver. American people relate to mph better, so they started making dual dials (because any serious navigation demands kts, they could not get rid of kts). Trouble with a dual dial is when you have huge markings in mph and small markings in kts, it's kind of difficult to work with kts. I have a dual dial, so although I hate working with mph, I use them for speed control... but not for navigation. Another thing I hate about it is the setting window, which is graduated in inches of mercury, when no control tower will give you anything else than milibars. So, I have a to stick conversion table on my instrument panel. I guess one day I will bite the bullet and buy another one. Russian aircraft are a lot of fun. The Russians comply with the International Standard System (SI), so absolutely everything is metric. Speeds are in kilometers per hour, altitudes in meters (with altimeter setting in kpa), pressures in KPa, and so on. While flying a Russian built aircraft, I once made a very bad mistake on approach, having established my descent rate at 500 per minute. On short final, I finally realized that that was awfully wrong. I had forgotten the dial was in METERS per minute, so the descent rate was about 1500' per minute! The aircraft probably still remembers the bounce that followed! Serge Vidal KR2 "Kilimanjaro Cloud" Paris, France "Phillip Matheson" <mathe...@dodo.com.au> Envoyé par : krnet-boun...@mylist.net 2005-05-13 01:39 Veuillez répondre à KRnet Remis le : 2005-05-13 01:40 Pour : "KRnet" <kr...@mylist.net> cc :(ccc : Serge VIDAL/DNSA/SAGEM) Objet : Re: KR> KR speeds MPH ? I have asked this before, and still not sure as to why in the US you use MPH. Are all ASI's in the US calibrated in MPH, or you convert from knots. I know the conversion is not difficult, but why?. For some reason I thought all aircraft use Knots as the ASI calibration?? Just a question. Phillip Matheson mathe...@dodo.com.au Australia VH PKR See our engines and kits at. http://www.vw-engines.com/ http://www.homebuilt-aviation.com/ See my KR Construction web page at http://mywebpage.netscape.com/FlyingKRPhil/VHPKR.html Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@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-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
KR>KR speeds
\>I seemed to be confused on "Jeanette's Specs" being soon to be a new KR >Builder, the only specs I know of are the ones on her website... top speed 200, >cruise at 180. \>John Monday \+++ John, These "specs" have not changed from the first KR 2 that Ken built. He had a turbo VW and was getting 180 cruise up high so I guess you can't dispute that number. Realisticly, it depends on the engine used and the aircraft weight and how well it is streamlined. Expect 120 mph on the low end, 140 to 150 average cruise, and up to 180 cruise for the very light and/or big engine KR's. The 200 mph thing is the designer's imposed redline for the aircraft. Sorry there isn't a more exact answer but I hope this helps. If you want speed with yours, build it light and use the largest "practical" engine. Larry Flesner