A 500-metre (1,600 ft) drop would take the train to 360 kilometres per hour (220 mph) close to its terminal velocity, before flattening out and speeding into the first of its seven slightly clothoid inversions.
Each inversion would have a smaller diameter than the one before in order to maintain 10g to passengers while the train loses speed.
After a sharp right-hand turn the train would enter a straight, where unloading of corpses and loading of new passengers could take place. more