The site is undergoing some big changes right now so there are some new bugs that need to be ironed out. ioi should hopefully have the more annoying stuff fixed by the end of the week.
On Topic: The idea of increasing the speed of the treadmill is an interesting one and will technically work. But the amount of extra speed required to offset the immense amount of thrust this thing will be producing has me cringing at the thought of building such a treadmill. Since only a small fraction of the treadmill's power is actually turning into deceleration for the plane it will take a huge amount of belt speed to counteract the accelerating plane.
I won't hazard an exact guess but it seems like the belt could be required to approach mach speeds to accomplish this task. It really depends on what the actual percentage of treadmill energy is lost in spinning and the percentage that ends up in the frame. It won't be a constant percentage over a range of speeds either, which complicates things. And iirc the faster the wheels are spinning the less energy is actually transferred into spinning and more is lost in heat and in the frame, so that aspect at least is working in our favor.
Let me know if I am missing something.
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