...So now the trains are overweight and overspeed, and there is nothing for the rider to hold on to. Y'know, the least they could do would be to give us the grab bars that are supposed to be there. Furthermore, I have to disagree with "RockDown" about the old setup being hazardous. No, the lap bar won't hold you down in the seat...it isn't supposed to. It does serve as a handlebar, and when you do come floating upward out of the seat, it keeps you from coming *out*. There are a couple of dirty little secrets to airtime, and one of the most interesting is that there is no force pushing you upwards out of the seat...instead, it is the car accelerating downward faster than you. But the variation is controlled, so that while there is a bit of a kick to get you airborne, most of the way down the hill both you and the train are in free-fall, so that even though you aren't firmly planted in the seat, you aren't going to get far enough away from the seat to clear the sides and back of the seat before you catch up to the train, unless you accelerate the process by standing up. Therefore, you won't be thrown out of the train. I also suggest that standing up is not a major problem for young children, as the smallest riders feet do not reach the floor, making it impossible for those riders to actually stand while riding.
I got a good demonstration of this on the Magnum XL-200 once when I was sitting in the front of the second car, and the rider ahead of me had left a AA battery lying on the floor. That thing rolled and bounced all over, and it floated airborne at times, but it never got any higher than about 8" from the floor. It would not be unreasonable to assume that an unsecured rider would also be limited to about 8" of travel on Magnum.
Blue Streak still has lots of airtime. The challenge is to (a) not get stapled by the lap bar, and (b) to manage to shoehorn onesself into the incredibly narrow seat.
--Dave Althoff ???