-djansi
"Eject Goose, Eject!"
Kyle Says: Diamondback was a lot of fun! Made his first time at Kings Island worth it all!
The idea of the vertical-8 was dreamt up by a german showman who got a patent on the element (plus a pretzel-double inversion, which was incorporated in the original design as well).
He went to Stengel to evaluate a design. While calculating the inversions it appeared that the positive forces would be extremely high in the entrance to the vertical-8 and the pretzel inversion was no holiday either.
Laterals would be no problem (look at EGF and TTD) but the g-forces would have been in the 7+ range for milli-seconds.
Alledgedly some american park chains were very interested in the design, but they shied away as well. Apart from the ridiculously high forces, the patent-holder asked for a license fee which was far too expensive.
When it became apparent that the design was a no-seller, Stengel changed the vertical-8 to a giant vertical loop (circular) and he re-designed the pretzel inversion, but still no buyer.
I thought it was very telling of the RCT3 product that they DID include the version, but on the wrong coaster. It looks hideous with the Arrow-track.
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