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"Mr. G. R. Josyer, Director of the International Academy of Sanskrit Research in Mysore, in the course of an interview recently, showed some very ancient manuscripts which the Academy had collected. He claimed that the manuscripts were several thousands of years old, compiled by ancient rishis, Bharadwaja, Narada and others, dealing, not with the mysticism of ancient Hindu philosophy of Atman or Brahman, but with more mundane things vital for the existence of man and progress of nations both in times of peace and war.
"One manuscript dealt with Aeronautics, construction of various types of aircraft for civil aviation and for warfare. He showed me plans prepared according to directions contained in the manuscript on Aeronautics of three types of aircraft or Vimanas, namely, Rukma, Sundara and Shakuna Vimanas.