A critical study of the work "Vaimanika Shastra" (PDF)

A critical study of the work “Vaimanika Shastra” released by scientists from the Indian Institute of Science, Bangalore, in 1974. First, the historical aspects and authenticity of the work are discussed. Subsequently, the work is critically reviewed in respect of its technical content. They conclude, "It appears that this work cannot be dated earlier than 1904 and contains details which, on the basis of our present knowledge, force us to conclude the non feasibility of heavier‐than-air craft of earlier times. Some peripheral questions concerning dimensions have also been touched upon."