Basically there were two different types of Vimāna. The first was possibly “man-made” and had wings; you might say these flying machines are very much like our modern airplanes, the second is a non-aerodynamic shaped, disc-like or cylinder-
shaped craft most likely not made by human beings. These particular aircrafts (disc-like) were capable of astonishing maneuvers by today’s standards and are generally associated with modern UFO’s.
version of the “object” depicted here. However this RC model included the additions of an engine and a propeller. You might say the flight tests were quite successful; in fact the radio controlled aircraft not only flew but performed several airborne loops, rolls and other maneuvers, and then finished up with a perfect landing.