kesfi experimental gismu

x1 flies through medium x2 (not necessarily a fluid/atmosphere) using means of propulsion x3.

Generalization of volmna or vofli such that x2 is not necessarily a fluid; in outerspace, spacecraft cannot volmna (thus, they cannot vofli) because there is not fluid there - they do, however, kesfi be lo kensa. This is different from kru'uze in that internally-supplied forces (such as rocket propulsion) are possible.

In notes:

x1 flies/swims through fluid x2 using means of propulsion/lift x3.