Kunkel is an hydraulics engineer. The loaded platform is then raised, by using one or more water screws or other pumping mechanism, to the top course of the pyramid. There, the stones are horizontally slid off onto roller logs or sleds, and then simply rolled to where they need to be set, and then pushed into place. The Grand Gallery served as a huge water tank. Absolutely required reading for all persons who sincerely care about pyramids, other ancient manmade wonders, pharaohs, archaeology, ancient history and civilizations, science and engineering in general, architecture, and mysteries and paradoxes.
Figure is below.
M.S.E.E. Illustrated, detailed and comprehensive. As Consumertronics policy uniformly applied to all of its publications, Consumertronics assumes no responsibility for anything it publishes. The purpose of the Shaft would be to relatively quickly and easily hydraulically lift stones to the top course, to move workers, supervisors, equipment, tools, and materials to and from worksites, and to remove injured and ill workers, and debris and trash from worksites. And possibly to pump air throughout the Great Pyramid. All rights reserved.