DB: Lehner is wrong and so are you.
SC: With respect, Don, but you asked for our source for our 279 royal cubit hypotenuse figure for G3 and we presented it to you. Dr Lehner and his team undertook the most recent survey at Giza. Their actual data, however, has never been published. I can only assume, however, that Dr Lehner had access to the data he collected in order to present that figure in his book, The Complete Pyramids'. If you have a problem with Dr Lehner's result then I suggest it best that you take the matter up with the good Dr.