- #1

Hornbein

- 2,272

- 1,877

So I went to Wikipedia. It says drag is proportional to (the density of the fluid) * (the relative speed of the object)^2 * (the cross sectional area) * (the drag coefficient). While the cross sectional area is four hundred times higher, we can reduce the speed by a factor of twenty to compensate. That leaves the density of the "fluid." We can calculate the number of air molecules close to the surface of the plane. I don't know what that distance should be, but since the number of molecules is much smaller than with the airplane itself it might be an increase of only a factor of ten. To compensate we reduce the speed by another factor of three for a total of sixty. Our top speed is about 12km/hour. That's very good, because the Earth itself is even more compact than the plane, its circumference being about two and a half kilometers. The drag situation for ships is similar, so a two week voyage is reduced to a three hour tour. Heck, with ocean travel that fast what would be the point of enduring the discomforts of air travel?

So...how am I doing so far?