Originally posted by e-man
-1.4 verts is too high, the commonly accepted limit is -1.2 if not -1, just thought I'd let you know as you will likely be rated down by many for having -1.4 verts.
Well ... here are the standards. But yeah, that is a bit tough on verts, unless it is not sustained (only a pop) and then -1.4 is fine.
The ASTM amusement ride standards are listed as:
The "at # sec" means for that amount of time, like "at 2 sec" means a certain level of G's sustained for 2 seconds.
Lateral:
Under 1 sec +/- 3.0 G's
At 1.5 sec +/- 2.5 G's
2.0 sec + +/- 2.0 G's
Airtime (Vertical):
At 0.2 sec -2.0 G's
0.5 to 4.0 sec -1.5 G's
7.0 sec + -1.1 G's
Now, it starts to get complicated.
The following are G-force rules that apply to transitions from lateral or other positive vertical G's, or less than three seconds of negative vertical G's.
Positive G's:
Under 1 sec +6.0 G's
At 1.5 sec +5.0 G's
2.0 to 4.0 sec +4.0 G's
5.0 to 11.8 sec +3.0 G's
12.0 sec + + 2.0 G's
The maximum allowable G's in a coaster is 6.0 G's by the standards.