I was looking in the gallery, and i was looking at a picure of the Jumbo Jet, and i realized that there is no lift hill!!! Whats up with that? It was in 1978, so it couldnt have been a LIM coaster. If anyone could help me out, that would be great.
I was not aroun for the Jumbo Jet, but I assume it would have a lift simIlar to the Woodstock express which is "wheels" which push the train up the hill. Other lifts similar to that I think are on the Thriller.
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Joe
The Jumbo Jets, City Jets, Star Jets, and all of the jet coasters had a spiral lift hill (the thing with the sign on it), they were powered by an electric rail on the track which sent curent to an electric motor in the cars, powering them up the spiral lift hill.
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We bought a lifetime supply of pudding? How wasted were we last night?!
*Dude, Where's my car?*
Wait i found something in a book about it. here what it says:
Some coasters employ a lift-hill system whereby the trains themselfs contain small electric traction motors that drive cog wheels which engage in a ratcheted section of track to pull the trains up the lift hill. The principle is much the same as that found in cog railways such as at Pikes Peak, Colorado, and in Europe. By necessity the motors have to be small, which makes it impractical for trains to conquer steep lift hills. Thus, in most cases-as with this Jumbo Jet coaster at Cedar Point in 1977-the lift hill trackage has to be arranged in an upward spiraling helix to minimize the grade the train must climb.
Well, there you go. :)
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SFGAm's Whizzer still employs such a system.
Well, I was around when Jumbo Jet flew at Cedar Point. I knew the part about the on-board motor. Didn't realize that it employed a cog system! Two things to add...the seating arrangement in the JJ cars was such that you straddled a pad in the middle, similar to White Water Landing. The motor housing was beneath this hump. Hump similar to a rear wheel drive automobile. I remember that you didn't want your leg to touch the JJ hump...it could be very hot on summer days due to the short ride cycle.
The second thing about the motor...when you got to the top of the lift hill, there was a trigger that shut off the motor. That was very exciting to hear the whining motor die, because you knew that you'd be plunging toward the lake in about 2 seconds!
All in all, a great ride! A technical marvel, considering we're talking about the mid Seventies. Who else remembers the JJ????
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Photographic philosophy:If it moves at CP-take 1 picture. Not moving-take 3-4 pics minimum!
Chaos at Opryland had those same kind of mechanisms.
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