[dmitrygr]

*AIR*craft are craft that need & use air. Rockets not only do not need air, they prefer a lack of air. So they are not aircraft. They are spacecraft (they are designed for and prefer space)

[snypher]

To clarify they use air to generate lift and hence the ability to travel in the Z-axis, not that they need air to make the propulsion system work.

Edit: if you strapped a Raptor engine to a 747 it would still be an aircraft.

[dmitrygr]

You outpedanted me, nicely done, sir.