>>11991181You can actually get everything that tells you how to make them from Sanskrit directly. The same texts that describe nukes going off describe how the flying machines work.
These directly go over Vimana construction methods, apparently there are many different types some even capable of space travel.
Vedas
Mahabharata
Vaimanika Shastra
Merkabah mysticism (Jewish school of vimanas )
Vimanavatthu
Samarangana Sutradhara
Rig Veda
Kathasaritsagara
Ramayana
Arthasastra of Kautilya
Bhagavata
Vimana-Vatthu of the Khuddhaka Nikaya Sutta pitaka
It seems to all be about resonance and vibrations for the most part, the simpler Vimana are solar powered as they do not actually require much energy. My research indicates the used normal quartz crystal for the piezo electric effect and used it like a transducer to resonate the metal hull of the craft. I was looking for a actual propulsion system but none was ever described so apparently that is it, no propulsion systems are actually described just mercury gyros to orient the craft and what not.
The Jesuit airship seems to collaborate this since it apparently used sound and vibrations to fly as well.