RideWarriorNation

What do you mean, "Nice try Trevor"? Honestly, I can't tell anything from that picture. [1]This, however has a pretty straight forward definition of what "classes" are. I got the height requirements from the minimum height requirement average for each restraint. Your standard lap bar restraint can have a height requirement from 48-52". For the OTSR's I was just counting inverted coasters; which was foolish of me. But, Vekoma's SLC coasters have a height requirement of 1.3m (or 51") not more than 52" like you're claiming. I also looked at B&M's inverts which have a height requirement of 54". Which is where I got the "51-54", but yes, it would be 48-54" for OTSR. Last but not least I got the prone restraint height requirement from looking at both Vekoma, and B&M. Which are oddly both 55" (thinking they would be different).But yeah, thanks for correcting me on the OTSR height requirements, and of course I should have listed sources . -RWN-

I wouldn't really say it's based off intensity and the different forces being applied on the rider. I wouldn't be so quick to say that. Height requirements are based off, obviously the type of restraint the ride has, and that is determined by the forces that are being applied to the body. Let's look at 3 different types of restraints that are needed depending on what kind of forces are being applied to the body...Base Case (class 4-5 restraint) - This type of restrain provides support to the lower body in all directions, and maintains the riders contact with the seat at all times. AKA, the notorious lap bar. So the height restriction would be somewhere around 48". Over-the-shoulder (class 5 restraint) - This enables support of the upper body. The height restriction with this kind of restraint would be around 51-54". Prone restraint - This is the standard flying coaster restraint. It allows the patron to accept higher acceleration in the -Gx (eyes). Also designed for the rider to be oriented face down during the ride cycle. With this restraint the height requirement is around 55". I hope this clears some confusion. -RWN-