[starpilot]

Quadcopters don't scale up. Flyable scale models have used extensively in other aviation research:

https://www.youtube.com/watch?v=pgDRkNseNxU

[jahewson]

Certainly but it’s not quite that simple https://en.m.wikipedia.org/wiki/Reynolds_number

[grkvlt]

quadcopter aircraft scale up fine, for example the bell x-22 [0] research vehicle.

0. https://en.wikipedia.org/wiki/Bell_X-22

[Alupis]

There's nothing special about a quadcopter.

An airfoil is an airfoil.