Chris, I believe you fly a KR-2S with VW engine? Does you airplane have a neutral or even slightly negative stability. Did you do the Stability test as described in the EAA Sport aviation (stick force measurements?)?
I haven't gotten to the stick force measurement's yet, but there is a strong indication, that the my "stock KR-2S" is neutral stable...(maybe even negative) I will get to the stability test next, but I am afraid the result might lead to increasing the horizontal stabilizer area. On the positive side, I have managed to sort out my trim problem. single pilot with full fuel (header tank) I can trim now all the way down to 70kts, however the trim tab position is almost like the one Mark Langford posted showing Steve Aldermans KR 2 at the gathering (80° down). Thanks Christian OE-VPD http://www.members.aon.at/oevpd -----Original Message----- From: cgardn628 [mailto:[email protected]] Sent: Dienstag, 23. September 2003 04:04 To: KR builders and pilots Subject: Re: KR>KR-2S Weight and Balance RV, The CG position should be as close to the forward limit as possible , when empty . ( ie ideally 15-20% MAC or 8-10 inches aft of the leading at the stub wing). My KR2S empty weight CG came in at 18% . When loaded with fuel and passegers , it will move back as expected. I don't know how "stock" your KR2S is compared to mine but you are welcome to use my Excel spreadsheet to enter your exact plane variable ( moment arms and weights). The spreadsheet will calculate required % for you. I will E mail it direct to you ( and anyone who wants it). Fly safe , protect yourself ...and our privelege to fly amateur built aircraft . Regards Chris Gardiner C-GKRZ KR2S ----- Original Message ----- From: <[email protected]> To: <[email protected]> Sent: Monday, September 22, 2003 6:18 PM Subject: KR>KR-2S Weight and Balance > Netters; > I have my 2S balanced according to the wt and balance form provided in > the plans. As it currently exists, it seems nose heavy even though the CG is > only 2" in front of the rear limit. It seems to me that I've heard some > discussion about the wt and balance in the builders manual being incorrect. As I > am about ready for the first flight, I would appreciate some input on this > issue. > > RV > _______________________________________________ > see KRnet list details at http://www.krnet.org/instructions.html _______________________________________________ see KRnet list details at http://www.krnet.org/instructions.html
