>1. If you are planning to stretch/widen the KR2, get the KR2S supplement. >The wing is longer, giving higher gross weight capability. >2. During the test phase, you have to establish stall and flight >capability, even if you build to plan! Larry Severson ++++++++++++++++++++++++++++++++++++++++++++++++++++++
I will attempt to address several issues in this post and will try to hold down on my "rambling". First: The sale/resale of plans is not an issue with the FAA. They do not care what you call your airplane or what number you assign it other than the N number which you get from them. My registration is as follows; MANUFACTURER AND MANUFACTURER'S DESIGNATION OF AIRCRAFT Larry Flesner - KR 2 Modified SERIAL NUMBER 5850-57 (the number on my plans) Use any number you want for a serial number, the FAA doesn't care. The only real issue on the sale/resale of plans is trying to be "fair" with the designer and is strictly a personal issue other than the copyright considerations. What if you designed an aircraft, decide to sell plans, and the buyer of the first set builds a airplane and then passes the plans along to the next 499 builders and cuts you out 499 sales. This is a stretch I know but you get the point. Second: the statement "The wing is longer, giving higher gross weight capability" can be a bit misleading. The main purpose of the "longer" wing is to give better climb performance for the heavier KR's with a slight lowering of the landing and takeoff speed. I don't know if the longer wing and lighter wing loading actually hurts in cruise and/or gives a rougher ride in bumpy air. It DOES NOT give the "structure" a higher weight capability but actually cuts it down by 1/2 G. That statement came directly from Jeanette Rand and was credited to one of her engineer advisors. I'm basiclly speaking of the loads applied to the wing attach fittings. Third: As stated, you the builder will determine the various speeds and restrictons for your aircraft during the "test" phase. You probably have a good idea what these will be based on the performance of other KR's and information stated in the plans but you have the final responsibility to establish gross weight and aircraft performance numbers for YOUR version of the KR. Other than to establish aircraft and system reliability, that is the primary purpose of the "test" period. I can't claim to be an expert on any of this so anyone with a differing opinion feel free to fire back. Larry (put on you mask, the painting starts tonight!) Flesner
