On 7/29/2022 1:50 PM, Terry Williams via KRnet wrote:
Have there been any load analyzes done with regard to the changes made with the KR2S and KR2S-mod (M. Langford, et. al.). I like what I read about the changes, but I wonder if anyone has load tested the new structures and published the results. Would the KR2S (and others) sustain +6g or -3g loads. At what weights, etc.? Just curious, -Terry
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I'm not aware of any "scientific" load testing ever done on the various KR models. A very "unscientific" test was done to destruction at one of the Gatherings and impressed all in attendance. The original KR2 plans state the "design limit" is 7G's at 800 pounds so the "design limit" for your bird will be weight dependent. My KR at 1300 gross would be 4.3 G's. The 2S with it's longer wings might be slightly less than that. Marty Roberts once claimed to have pulled 6 G's on the meter and survived to embellish the story around the beer tub. His standard KR weighted about 760 pounds as I recall. The new wing, if using taller spars, might do better than that. Flying any EXPERIMENTAL you're placing your butt on a lot of hearsay so take anything you hear with a grain of salt.
Larry Flesner -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
