Board Thread:Theories and Speculation/@comment-25093611-20160304230401/@comment-734582-20160310183958

GreatestSin wrote: ^but the amount of chakra is still possible for normal shinobi at least they could do it for some time, Call me crazy but i did the math.

To walk on water you'd need to blast out 125L water per second, at 22km/h. this takes 5Kw. To walk on air, you'd need to blast out 4.3kg (3.6m^3/s per second at 650 km/h. this takes 141Kw.

So i was a bit off. (it's 30x as much power). The size of the foot remains the same, which is the area where the chakra is blasted through to create the jet. The densities are known, so this determines the mass flow. A smaller foot (at equal size) requires more power but needs to displace less fuel.

The air jet is within acceptable margins to leave out sonic effects, so the math should be fairly accurate. It ignores more complex things, but it's fine as an estimate.

Conclusions:
 * it should be possible to move through the air, Iron-man style. Good luck controlling flight like that, and it would be as anti-ninja as you can expect (Loud as hell), and it would cost considerable chakra to maintain for longer times. But it can be done.