Zero-G-Roll, Heartline, or In-Line-Twist???

Ive noticed that many coasters that have 'Zero-G' inversions, call them different names, but then there are different forms. I know its confusing, but lets take an example at sfgadv. On Medusa, the Zero-G roll is commonly called that and a heartline camelback. The same is for Batman after the first loop. On batman, it is a twisted, level piece of track, while medusa is almost like a streached corkscrew. This also applies to the chiller. Whick is better though? Id have to say Medusa cause it is soo much smoother. Thats so weird though how it has 3 names, and both are different!!

Well, the way I see it (and many disagree) NONE of the inverted coasters have a 'zero-G' roll. The element on inverted coasters is an 'inline twist'. In order to have a 'zero-g' roll, the hill has to be parabolic, like on kumba or kraken, not flat at the top like B:TR and Raptor. Personally, I think they all lack a little to the tight corkscrew/flatspin/wingovers that are on the B&M coasters near the end.
jeremy

2Hostyl, I couldn't agree more. Inverted coasters do not perform "Zero G Rolls" (I don't care what B&M call the element) At least it does not feel like a zero G element. On Medusa, it does.

-------------
"X" marks the spot in 2001!

A Zero G roll is like a pop of airtime, while performing an heartline roll, right?

None of those have heartline twists. The only two rollercoasters with heartline twists are Ultra Twister at SFAstroworld and Manhatten express at new york , new york. A heartline twist is a twist that revolves around your heart. The rollercoaster does not move up or down any at all as the others move up or down at least a little.

How's about we call 'em "rotation in weightless condition" like good ol' B&M does? :) Heh, say that one ten times fast.

-------------
Millennium is spelled with two N's ;) *** This post was edited by Legendary on 2/15/2001. ***