We need to consider the forces on the car at the top of the loop. Here's a diagram: ... What about a height of 20 meters with a 1.5-meter radius for the loop? This would produce a force of 21 g's.

How much G-force does the All American Triple Loop have? Indiana Beach's All American Triple Loop clocks in at 5.6 G's. That places it on a list of some of the top-ranked roller coasters in the ...