Height of Alpengeist's Immelman?

Anyone?
Its gotta be a little bit higher than the loop.
If the loop is 106 ft. to 108 ft. tall then the immelman has got to be at least 110ft. tall in order to give the train enough power to get through the loop.
True, but if the drop is 170ft, wouldn't it be taller than that?
Taipan, the B&M inverted coaster trains are fairly lightweight compared to those found on any other coasters. Alpengeist, with a 170 FT drop achieves a speed of 67 MPH while the firm's The Riddler's Revenge has a 146 FT drop and it hits 65 MPH, which comes very close to Alpengeist's top speed.
Thats true, but I always wondered how Top gun at Carowinds gets 62mph with a drop of 115' (and it only has 8 cars per train)
rollergator's avatar
...you have to take into account the angle of the drop, and the drop height (not the lift height), before taking into account weight (of train and riders), friction, wind resistance, and countless other factors to get max speed. 
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ApolloAndy's avatar
Rollergator: In theory, angle of drop does not affect speed at all.  In practice, unless something is particularly flat, the theory holds true.
BatWing Fan: Since when can't an inversion be higher than the next?  It could just keep a lot of speed through the Immelman.
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The legend lives!

*** This post was edited by ApolloAndy on 2/19/2002. ***

Apollo Andy and BatWing Fan - I think BatWing Fan is confused about the rule that every hill and inversion can not exceed the height of the train at its highest part off the lift hill, but the 2nd inverson can be taller than the first.  For example, if a coaster is 200 feet tall at the top of the first drop, no hill or inversion can be 200 feet tall (unless there's another lift hill or lauch).  However, the train can go in a 100 foot hill and then a 150 foot hill, just as long as the train doesn't approach 200 feet.  I hope this is clear.

Zimm
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rollergator's avatar
ApolloAndy, I think the reason the angle affects speed, more than anything else, is the reduction of accompanying friction.  Physics tells us the effect SHOULD be negligible, but you are correct about theory vs practice...I remember something about the Original Mr. Twister running too slow until John Allen realized the angle of descent was off by almost 3 degrees.  I think the lift was also increased before its second season, and it re-opened to RAVE reviews...sorry I never got to ride it, but I do have some pics of the "bits and baubles" retrieved for the version at KG...
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Florida needs an Intamin and/or CCI soon...PLEASE!
Son of Drop Zone - PKI CoasterCamp I Champions!!!
To answer the question:  140 ft.
Can't confirm this 100%, but I've been told that.

Thats true, but I always wondered how Top gun at Carowinds gets 62mph with a drop of 115' (and it only has 8 cars per train)

Um, it has a drop of 125', and since when only having 8 cars per train affect the train weight, most B&M inverteds have 8 cars per train.  Not much difference, unless you're talking the 2 across--but they're much longer, so they are about the same.
And yes, angle does affect coasters very slightly, this is due to friction. Also, distance from the center of the earth also has minute effect on the speed. And I could go on so long. In a perfect world, there are no friction; therefore, the angle isn't an issue. Top Gun is so damn steep for an inverted.
Alpie is advertised at 67 mph, but I've heard a report saying it ran at around 70 mph, esp. on hot days.
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http://xpp.coasterbuzz.com/

*** This post was edited by The Jet Coaster on 2/19/2002. ***

As stated in Family Fun magazine (was it 1997?), the Immelmann on Alpengeist is 126 feet tall.

Jeff

Jeff is right

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ApolloAndy's avatar

The Jet Coaster said:

Also, distance from the center of the earth also has minute effect on the speed


That effect is SO negligible.  Someone sneezing three miles away probably has more effect than this distance.  You're talking about a difference of 1 in 3,000 or so here.
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