In response to your last question, who flies a KR2 like yours.....I do original KR2 with retracts and cable brakes build in 1984
Lee Van Dyke > On Feb 5, 2021, at 3:05 PM, Dr. Feng Hsu via KRnet <krnet@list.krnet.org> > wrote: > > Thank you Mr. Colin for your very encouraging post commenting about the KR2 > original design. Honestly, I need such post like yours to help keeping my > dream alive for getting my KR2 off the ground someday! I was thinking about > giving it up on my dreams to actually fly the bird after described my KR2 > issues and get no encouraging response on the original design with my type > of configuration, especially for a cable activated break and taildragger > with attractable main gear that is extremely hard to operate.... > > Does anyone know whom Larry Geiger is? Your video about his KR2 won the > 1993 KR2 of the year is a huge boost on my confidence about the KR2 > original design. My KR2 looks almost identical to his except not suring > about his break? My breaks and retractable wheels look almost identical, so > I would assume that Larry Geiger's KR2 in the video was also equipped with > a cable break, such as in the original design, perhaps? > > Another video provided in your link was a maiden flight of a KR2 with my > type of design, but the video scared me a heck of a lot when watching the > guy (your friend?) almost lost control on his first take off...?! > > You also mentioned a number of times about nothing wrong with the standard > KR2 design. However, I am not sure what was exactly the standard KR2 design > by Ken Rand? Was it also called the original KR2 design with the same type > of configuration like my bird (such as retractable main gear with cable > break system, taildragger with a speed break board in the belly)? > > Am still looking to find out if anyone on the planet who still owns and > flies the type of KR2 like mine, especially here in the US?! > > Kindly, > > Dr. Hsu > >> On Thu, Feb 4, 2021, 9:46 AM colin hales via KRnet <krnet@list.krnet.org> >> wrote: >> >> I've read lots about stability and landing. >> >> I have a stock KR2. It's fine!!!! >> >> You don't need to extend the fuselage length or put a bigger tailplane on >> to make it more stable. Those people who say there KR" is unstable haven't >> got it set up right with respect to the C of G. Just make sure your C of G >> is correct. A bigger tailplane means probably a bigger elevator, overall >> affect of both is a more stable aircraft until you move the larger, more >> powerful elevator. So now you need a smaller elevator, but then you won't >> have such an agile aircraft. It's all a waste of time and effort. >> >> If you lengthen the fuselage, yes you get a more stable aircraft until you >> move either rudder or elevator. Don't forget pitch or yaw control is a >> function of forces and length which can be exchanged for torque. More >> length more torque, overall affect of lengthening fuselage. Nothing but a >> waste of time and effort. Yes its more stable until you touch the controls, >> then the fact they are further from the centre of pressure makes them more >> powerful or the aircraft is just as light and twitchy. >> >> JUST GET THE Cof G RIGHT AND THE AIRCRAFT ORIGINAL DESIGN IS FINE! If its >> not broken, don't try to fix it. >> >> As for landing, its easy. Just fly along the runway in a slowly descending >> attitude, no flare or faffing or pilot induced oscillation, PIO. When the >> wheels touch, stick forward to keep the plane on the ground and close the >> throttle and wait for the tail to touch down. >> >> The biggest problem with the KR2 is you have to finish it, I bet 90% that >> get started never get finished. >> >> So don't worry about modifications or re-inventing the wheel, pitch >> sensitivity or flying or landing, just worry about finishing it, because >> most people won't ever finish the poor plane, but will sell it on again to >> the next person who will want to modify it and re-invent the standard KR2 >> design when there is nothing wrong with it, except from what they may have >> heard from someone who has zero flying experience of flying a Kr2 or from >> some bloke down the pub or flying club. I've got over 1,000 hours in three >> standard KR2's and they are fine... >> >> Final information for the day. Brakes. Trust me, you need the best brakes >> you can get. When its all going a bit wrong, wishing you had fitted better >> brakes won't be of much help. >> >> For examples of how to land a KR2 watch these or loads of other videos on >> youtube. >> >> https://www.youtube.com/watch?v=RSJXKZhHkfQ >> >> https://www.youtube.com/watch?v=9FJuTyf2sJc >> >> maiden flight of a friends KR2. >> >> https://www.youtube.com/watch?v=omBs9lCkBLI >> >> >> [https://ipmcdn.avast.com/images/icons/icon-envelope-tick-green-avg-v1.png >> ]< >> http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> >> Virus-free. www.avg.com< >> http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail >>> >> _______________________________________________ >> Search the KRnet Archives at >> https://www.mail-archive.com/krnet@list.krnet.org/. >> Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. >> see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change >> options. >> To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org >> > _______________________________________________ > Search the KRnet Archives at > https://www.mail-archive.com/krnet@list.krnet.org/. > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org > _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. 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