Khafre Pyramid is still full of secrets, with its 411 cubits on sides and 274 cubits high, and the slope of the faces is 53°07’; however, an angle degree close to a single SKD (cotangent x7), i.e., 5.25 in this context (exactly seven times the half base / height), would be 53°21’. The radius of the protection sphere is 53 meters, the only visible chamber,

that is clearly appointed as a burial chamber has a cross-section of 14.15 × 5 meters, a floor area of 71 M2, and is 6.83 meters high. It is extended by a significant horizontal gallery that is 55 meters long, 1 meter wide, and 1.78 meters high.

From what we know today about this pyramid, there is no clue about a shaft that would have been sealed (same thing with the Menkaure Pyramid). I conclude that this pyramid was entirely built with a counterweight winch system, already used for the construction of Cheops’s Pyramid.

Unless major progress in rope resistance had been made in between, I wonder if the real funeral chamber at the center of the pyramid was made only with blocks of average weight.