G Force Questions

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Spencerman
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G Force Questions

Post by Spencerman » Sat Jun 15, 2013 8:46 pm

I was wondering if the front of a wooden coaster is 4.2 Gs, and the back is 4.4, is that safe? And sould I test the middle? (This is for the bottom of a drop) (It also stays in the green)

Sora
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Re: G Force Questions

Post by Sora » Fri Nov 15, 2013 4:19 am

If it stays in the green it's fine, if it goes into the yellow then it's pretty strong. Avoid red spikes.

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CptBeeble
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Re: G Force Questions

Post by CptBeeble » Sat Nov 16, 2013 12:39 pm

It's not always as black-and-white as the strongest G force.

Example: if you're humming along at 1G and you have a quick jolt of 3Gs, it's going to be very uncomfortable, like a pothole on a bicycle or a jab to the ribs.
Doing 3Gs with a lead-up to it, even if just stretched over a second or two, is just fine.

Likewise with your 4.2 and 4.4G showings. If the bottom of the drop is rounded and there's a smooth lead-in to those numbers, you should be fine. Even going yellow briefly would be OK as long as the transitions are smooth. The main thing is not to "spike" it and not to leave the Gs in the high numbers for an extended period of time. Even green Gs can become overwhelming if there's a long run with no let-up... look no farther than SFOT's Titan for proof of that!

The first helix on Titan starts out pretty strong and even though the Gs have reduced considerably by the end of it, the accumulation factor of not having any relief from those Gs make the end of the helix harder to take than the stronger Gs at the beginning. SFOT even had to start using the trims after the helix as a full-stop brake run, ooching the trains forward a few feet at a time, stopping completely over and over, just to give riders a chance to recover before they get hit with the second helix. Folks were blacking out, even though the Gs most likely stayed in the green.

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Spencerman
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Re: G Force Questions

Post by Spencerman » Sat Nov 16, 2013 2:06 pm

Okay, thanks Woodpecker and TC. This helped. :)

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