KR> Most heavy engine
> I am able to lay my hands on a good 160hp Continental engine, > complete with prop & running. >Henni +++ Henni, In my 25 year exposure to KR's and having built one with an 0-200, I would ABSOLUTELY NOT RECOMMEND going with an engine that heavy and with that much power. Too many changes to be made to accommodate such an engine. I think Jeff Scott had a good idea. If it is too good of a deal to pass up, make the deal and then trade down or sell the engine to purchase a much more acceptable engine. If I had the money :-( I would go with a Continental IO-240. Same basic weight as an 0-200 but fuel injected and 125 hp. Now that would make an AWESOME flying KR2S with very few , if any, changes. IMHO Larry Flesner
KR> Most heavy engine
I am a bit confused about the 160 HP Continental engine. ?What engine model is that? ?Continental made an O-346 which is 165 HP, and an O-300, which is 145 HP. ?Or do you mean a 160 HP O-320 Lycoming? ? George McHenry had just replaced the O-235 Lycoming on his Single Seat KR-2S with a 160 HP+ O-320. ?He had gone out of his way to keep the engine as light as possible. ?Unfortunately, he was killed on his first or second flight behind that engine. ?Cuase of the crash is still unknown, but you can look up the write up on the NTSB reports, Pueblo, CO, Sept of 2012. Even with his hopped up O-235 (roughly 140 HP), he was able to go run with the RV crowd. ?He loved to put on O2 and cruise at 17,500' when headed east with the winds. ?So even an O-235 is more than enough HP as you have to be very careful about VNE and flutter. ?I know George got himself in trouble with flutter on the rudder at one point in time and broke one of the two rudder hinges in flight. Even with the O-200 on my KR, when I am at altitudes below 5000', I have to be very aware of my speed as it is quite easy to blast past the 195 mph IAS VNE just doing a slow 300 fpm descent. One thing for sure, depending on what engine you just traded for, you could easily swap it for a Lyc O-235 or Cont O-200 and have a plane with fabulous performance. ?With 160 HP, you're going to need bigger fuel tanks for the same range, which makes for more weight on top of the heavy engine. ?There are a lot of trade offs to consider. -Jeff Scott Los Alamos, NM > - Original Message - > From: Hennie van Rooyen \[HQP Alloystream\] via KRnet > Sent: 05/08/14 07:37 AM > To: KRnet > Subject: KR> Most heavy engine > > Hi everyone, > > Don't crucify me, this is only a question. I am able to lay my hands on a > good 160hp Continental engine, complete with prop & running. What is the > heaviest & most powerful engine ever put in a KR2? I see it weighs 297 lbs > compared to the 227 of the Corvair. > > I say again, this is merely a question out of interest. Please don't attack > me. > > Keep well all, > > Henni > This e-mail is confidential and is for the addressee only. > Please refer to http://www.exxaro.com/content/main/disclaimer.asp > for important disclaimers.
KR> Most heavy engine
Hi Jeff, Just to answer your question - I've just had the reply. It is the Continental O-346 indeed. I think I'm going for it! All the best, Hennie van Rooyen -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Jeff Scott via KRnet Sent: 08 May 2014 05:37 PM To: KRnet Subject: Re: KR> Most heavy engine I am a bit confused about the 160 HP Continental engine. ?What engine model is that? ?Continental made an O-346 which is 165 HP, and an O-300, which is 145 HP. ?Or do you mean a 160 HP O-320 Lycoming? ? George McHenry had just replaced the O-235 Lycoming on his Single Seat KR-2S with a 160 HP+ O-320. ?He had gone out of his way to keep the engine as light as possible. ?Unfortunately, he was killed on his first or second flight behind that engine. ?Cuase of the crash is still unknown, but you can look up the write up on the NTSB reports, Pueblo, CO, Sept of 2012. Even with his hopped up O-235 (roughly 140 HP), he was able to go run with the RV crowd. ?He loved to put on O2 and cruise at 17,500' when headed east with the winds. ?So even an O-235 is more than enough HP as you have to be very careful about VNE and flutter. ?I know George got himself in trouble with flutter on the rudder at one point in time and broke one of the two rudder hinges in flight. Even with the O-200 on my KR, when I am at altitudes below 5000', I have to be very aware of my speed as it is quite easy to blast past the 195 mph IAS VNE just doing a slow 300 fpm descent. One thing for sure, depending on what engine you just traded for, you could easily swap it for a Lyc O-235 or Cont O-200 and have a plane with fabulous performance. ?With 160 HP, you're going to need bigger fuel tanks for the same range, which makes for more weight on top of the heavy engine. ?There are a lot of trade offs to consider. -Jeff Scott Los Alamos, NM > - Original Message - > From: Hennie van Rooyen \[HQP Alloystream\] via KRnet > Sent: 05/08/14 07:37 AM > To: KRnet > Subject: KR> Most heavy engine > > Hi everyone, > > Don't crucify me, this is only a question. I am able to lay my hands on a > good 160hp Continental engine, complete with prop & running. What is the > heaviest & most powerful engine ever put in a KR2? I see it weighs 297 lbs > compared to the 227 of the Corvair. > > I say again, this is merely a question out of interest. Please don't attack > me. > > Keep well all, > > Henni > This e-mail is confidential and is for the addressee only. > Please refer to http://www.exxaro.com/content/main/disclaimer.asp > for important disclaimers. ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options
KR> Most heavy engine
Hi Jeff, Thank you for your detailed answer my friend. Yes, it is a Continental. I've now asked for the exact engine model number. Awaiting a reply. So to sum it up: 1. Yes, it could be done. 2. One will have to be very aware of the speed. 3. It will most definitely burn much more fuel. 4. With the long tail, one can compensate for the added weight up front. 5. It will have no problems to get two tall South African adults away from the ground. I think this might be my last question on this: Would it be extremely expensive to maintain in an experimental aircraft? Does all the normal inspections etc. still apply? I say again, this offer came as a total surprize. I am still a bit dazzled by it all. I do not want to let a good deal pass me by unless it's of no use to me. Keep well my friends, Hennie van Rooyen -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Jeff Scott via KRnet Sent: 08 May 2014 05:37 PM To: KRnet Subject: Re: KR> Most heavy engine I am a bit confused about the 160 HP Continental engine. ?What engine model is that? ?Continental made an O-346 which is 165 HP, and an O-300, which is 145 HP. ?Or do you mean a 160 HP O-320 Lycoming? ? George McHenry had just replaced the O-235 Lycoming on his Single Seat KR-2S with a 160 HP+ O-320. ?He had gone out of his way to keep the engine as light as possible. ?Unfortunately, he was killed on his first or second flight behind that engine. ?Cuase of the crash is still unknown, but you can look up the write up on the NTSB reports, Pueblo, CO, Sept of 2012. Even with his hopped up O-235 (roughly 140 HP), he was able to go run with the RV crowd. ?He loved to put on O2 and cruise at 17,500' when headed east with the winds. ?So even an O-235 is more than enough HP as you have to be very careful about VNE and flutter. ?I know George got himself in trouble with flutter on the rudder at one point in time and broke one of the two rudder hinges in flight. Even with the O-200 on my KR, when I am at altitudes below 5000', I have to be very aware of my speed as it is quite easy to blast past the 195 mph IAS VNE just doing a slow 300 fpm descent. One thing for sure, depending on what engine you just traded for, you could easily swap it for a Lyc O-235 or Cont O-200 and have a plane with fabulous performance. ?With 160 HP, you're going to need bigger fuel tanks for the same range, which makes for more weight on top of the heavy engine. ?There are a lot of trade offs to consider. -Jeff Scott Los Alamos, NM > - Original Message - > From: Hennie van Rooyen \[HQP Alloystream\] via KRnet > Sent: 05/08/14 07:37 AM > To: KRnet > Subject: KR> Most heavy engine > > Hi everyone, > > Don't crucify me, this is only a question. I am able to lay my hands on a > good 160hp Continental engine, complete with prop & running. What is the > heaviest & most powerful engine ever put in a KR2? I see it weighs 297 lbs > compared to the 227 of the Corvair. > > I say again, this is merely a question out of interest. Please don't attack > me. > > Keep well all, > > Henni > This e-mail is confidential and is for the addressee only. > Please refer to http://www.exxaro.com/content/main/disclaimer.asp > for important disclaimers. ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options
KR> Most heavy engine
Hi, I've already have pics of that aircraft. I have no intention of building something else. If this engine not at all suitable for an existing KR2, I'll just not consider this deal at all. The only reason it grabbed my attention is of the many Corvair powered KR2s flying quite satisfactory with such a heavy engine. This Continental does not weigh all that much more, neither is it all that much bigger. I never expected for a moment that the Vne of the KR2 could handle this under full power, but that would be easy to control. Hennie van Rooyen Pretoria, South Africa -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of John Bouyea via KRnet Sent: 08 May 2014 04:53 PM To: 'KRnet' Subject: Re: KR> Most heavy engine Henni, I'm sure someone else will point out that engine is ok for a KR360 but not a KR2. See about 1/3 down on http://www.krnet.org/redoak2002 John Bouyea Hillsboro, OR -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Hennie van Rooyen [HQP Alloystream] via KRnet Sent: Thursday, May 08, 2014 7:19 AM To: KRnet Subject: KR> Most heavy engine Hi again, I just want to clarify the reason for my question. I have advertised our Vulcan Nomad 1500 tourer bike to swop for an ultralight. To my amazement, today someone offered to swop me for this engine, log books up to date, complete & in a good running condition. This sounds like a very good deal to me. I just need to know beforehand if this engine would be of any use to me before I consider in earnest. Keep well all, Henni This e-mail is confidential and is for the addressee only. Please refer to http://www.exxaro.com/content/main/disclaimer.asp for important disclaimers. ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options
KR> Most heavy engine
Hi again, I just want to clarify the reason for my question. I have advertised our Vulcan Nomad 1500 tourer bike to swop for an ultralight. To my amazement, today someone offered to swop me for this engine, log books up to date, complete & in a good running condition. This sounds like a very good deal to me. I just need to know beforehand if this engine would be of any use to me before I consider in earnest. Keep well all, Henni This e-mail is confidential and is for the addressee only. Please refer to http://www.exxaro.com/content/main/disclaimer.asp for important disclaimers.
KR> Most heavy engine
"Don't crucify me" On this site, especially when it comes to engines? Since I am going liquid cooled let me give my opinion. Weight is definitely an issue, but so is horse power. I don't care what engine you are interested in, if it is more than 130 hp you should probably be looking at another airframe. The KR airframe just doesn't need that much power and will not get the opportunity to use it except at take-off. Granted, every flight starts with a take-off but it doesn't last that long and then you will spend the rest of the flight with a very throttled back heavy engine. The changes you would need to make to the airframe to use this engine effectively, would result in a KRLancair. I know it is blasphemy to say you can't have too much HP but when it comes to a KR, you can. But, like I said earlier, just my opinion. Stephen Teate Paradise, Tx ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options The information in this email is confidential and may be legally privileged. If you are not an intended recipient, you should delete this message. Access to this email by anyone else is unauthorized, and any disclosure, copying, distribution or action taken or omitted in reliance on it is prohibited and may be unlawful.
KR> Most heavy engine
Hennie; Continentals need to be run at 75% at cruise, or they can burn oil. I added a quart an hour in my IO-470 because I ran at low power too much of the time. Also, how will you transfer that much torque to the airstream if you are limited to a 55 inch prop? HP=T x RPM Peter
KR> Most heavy engine
Hennie van Rooyen wrote: >>I am able to lay my hands on a good 160hp Continental engine, complete with prop & running. What is the heaviest & most powerful engine ever put in a KR2? I see it weighs 297 lbs compared to the 227 of the Corvair.<< The "world's lightest KR" project sure didn't last long! I had this same conversation with a newbie on the list a few weeks ago. His goal, like so many other of us cheapskates who build KRs, was to fly in and out of a short strip on his own property, dodging expensive hangar rent. The problem with the KR is that it's a very slippery plane, so landing burns up at least twice as much runway as takeoff, if not more. You can get out of places that you can't even land at, which is problematic. Being light is good...it means a low stall speed, but if you add an extra hundred pounds of engine, you're stall speed will climb, and your landing glide will extend due to the higher speeds you'll have to land at, and you'll need even more runway to land. If getting in and out of short strips is a concern, you need the lightest engine you can live with (and afford), not to mention "real" flaps and a bellyboard. Landing is your limiting case, not takeoff, so the extra power hurts your overall mission goal, not helps it. Having said that, I'm a big fan of more power, but short strips demand compromises, and engine weight is one of them. If you have several thousand feet of runway at your disposal, it's not so much of a concern...unless you have to dead-stick it in a small hayfield someday... Mark Langford, Harvest, AL ML at N56ML.com www.N56ML.com
KR> Most heavy engine
Henni, I'm sure someone else will point out that engine is ok for a KR360 but not a KR2. See about 1/3 down on http://www.krnet.org/redoak2002 John Bouyea Hillsboro, OR -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Hennie van Rooyen [HQP Alloystream] via KRnet Sent: Thursday, May 08, 2014 7:19 AM To: KRnet Subject: KR> Most heavy engine Hi again, I just want to clarify the reason for my question. I have advertised our Vulcan Nomad 1500 tourer bike to swop for an ultralight. To my amazement, today someone offered to swop me for this engine, log books up to date, complete & in a good running condition. This sounds like a very good deal to me. I just need to know beforehand if this engine would be of any use to me before I consider in earnest. Keep well all, Henni This e-mail is confidential and is for the addressee only. Please refer to http://www.exxaro.com/content/main/disclaimer.asp for important disclaimers. ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options
