Thanks Gary for saying that about Aft CG. I wanted to offer the same comment more or less, but I decided to keep my mouth shut in trying to avoid annoying anyone who might not wish to hear anything from a rookie pilot in this otherwise highly experienced KR crowd....
Obviously, the risk perception or confidence in safety of flying any experimental aircrafts (include KR2 of course) is entirely depending on the experiences and accumulated hours in the sky from each individual. My feelings of risk to fly a KR2 (or even sitting in on the right seat) can be an order of magnitude higher as compared to someone who already mastered this little bird in the sky for decades! So, it's a bit unfair to bashing anyone's thoughts about safety at the rookie level with the extensive experiences of someone already flew the KR for over 100s of hours, if not 1000s! I brought the idea of a possible adjustable CG design simply because I would much prefer to trade the loss of useful weight with enhanced confidence in safety.... Of course, if we work a bit harder on the design, we can surely to figure out a design option that will avoid adding any extra weight on the bird. One such design for example, could be to mount the battery in an easy & flexible mechanism that allows it to move forward/aft easily. Another design may be to use high speed pump to balance the fuel location/distribution rapidly whenever there is a Aft CG crisis ... Cheers, Dr. Hsu On Thu, Jul 21, 2022, 12:35 AM Gary Sack via KRnet <krnet@list.krnet.org> wrote: > Colin Hale sounds like the real deal. If he's written a book, it's > next on my read list. > > When I read "When I left Alaska for Russia, laden with 220 litres of fuel > on board, or 55 US gallons. I could hardly lift the tail wheel off the > floor and knew already, without scales or maths or charts, that the C of G > was beyond the aft limit, in the divergent range." > > I knew he was competent, but today he wrote > > " but why are so many plots wanting to say, "I flew mine way beyond the > aft C of G limits and it almost killed me! " > > What the hell do you expect?" > > What I expect is that if Colin flys a KR at aft CG he will arrive at his > destination. If I do, I might. If a green pilot tries he won't. > > The KR is a delightful airplane. Fast, fun, & cheap. A novice will have > his hands full at forward CG and MUST NOT carry his friends till he has it > mastered. When he has it mastered, he will know what not to do. > > Gary Sack 81 JM (Original, stock, retractable KR ll) > > > > > -- > KRnet mailing list > KRnet@list.krnet.org > https://list.krnet.org/mailman/listinfo/krnet >
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