Prater’s Theory tests a 13-degree ramp for the great pyramid but changed the idea of using this gradient at the top of the pyramid, even though the small test was successful.
Noticing that a 7.5-degree spiral aligns with the great pyramids, present-day blocks, presents the possibility, Egyptian builders may have used this gradient for the top section of the pyramid. Thirteen-degree ramps work in tests, but the idea doesn’t seem right after the discovery. These were the test and thoughts before.
At this stage, the internal blocks for the great pyramid would be getting even lighter. Therefore, a larger block on a ramp with a lesser pitch would be relative to a small block on a ramp with a steeper pitch. If, the pitch was to slight, the gradient would bump into itself as it wraps around the top.
13- Degree Ramp Test – Using A-frame
The test was to see how far up the pyramid a 15-tonne block could reach using this gradient, with the ramps supported by the structure and for the small blocks at the top.
In the small model test, dropping a weight of 4.25 drew 13 up the slope. The weight theoretically moving 13 tonnes up the 13-degree ramp. Equating this to tonnes. 4.25-tonnes of pulling force for 13 tonnes.
So if, 4.25-tonnes became 4.92-tonnes, then this would theoretically move 15 tonnes up a 13-degree ramp. Each man exerting a pulling force of 150 kg = 34 men.
Allowing for the unknown, 46 men.
The page Images Relevant to Pages shows, the men do have the space required on the ramp to move a 15-tonne block to the height near the top shown in purple.
Originally, I chose this gradient purely for speed, moving the small 2.5-tonnes blocks into position. In any case, the discovery of the gradient alignment does not leave much choice at the pyramids, 137-meter mark.