Dunno Wolfgang but it's a commonly quoted rule of thumb. As Stephen Jacobs said you could call it BS if you want exact figures. My point was simply that by increasing gross you are decreasing ultimate load and the weakest link in a KR2 is not well defined.
Colin, I find it difficult to believe those Seminole figures you quoted. +2 -0 does not sound safe in turbulence, especially if you were overweight. Those figures are even less than the early 210's and 177's and they had a tendency to lose wing tips in turbulence or steep turns. I maintain my view that to fly a KR2 at 1300lb (nearly 50% more than the original design weight) would be foolish without proper engineering analysis even if it were within CoG. If you wish to fly yours at that weight then fine, that's what experimental is all about. How are your high speed /no fly taxi tests going? Are you airborne yet? John The Martindale Family 29 Jane Circuit TOORMINA NSW 2452 AUSTRALIA phone: 61 2 66584767 email: johnj...@chc.net.au ----- Original Message ----- From: "Wolfgang Decker" <wdec...@cox.net> To: "KRnet" <kr...@mylist.net> Sent: Saturday, September 25, 2004 9:21 AM Subject: RE: KR> G limit > John, > > how and who came up with this rule? Is there any science behind it? > > Wolfgang > > -----Original Message----- > From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On > Behalf Of Martindale Family > Sent: Friday, September 24, 2004 6:51 PM > To: KRnet > Subject: Re: KR> G limit > > > Joe > > The KR2 is rated at +7/-7 G at a gross of 900lbs. A loose rule of thumb is > to lose 1G per 100 lb thus at 1300lb your're looking at only +3/-3. Not > sufficient margin in my opinion. Further your stall speed and thus approach > speed is likely to be way up. I don't know just what the G limit relates to. > It may be the wing attach fittings or it may be the engine/firewall > brackets. No one I know has tested their aircraft to destruction to find out > :-)). If you want a bigger useful load you would be better going to another > design and probably paying more. > > John > > The Martindale Family > 29 Jane Circuit > TOORMINA NSW 2452 > AUSTRALIA > > phone: 61 2 66584767 > email: johnj...@chc.net.au > > ....At do you know, preferably first hand, about flying the KR2 at gross > weights > approaching 1300 pounds?.................... > > > _______________________________________ > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > > > _______________________________________ > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html >
