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  1.        The GTRE engine presentation  at the 27th Subroto Memorial lectures                 Prof. Prodyut Das 15 /01/2025 “See how the Winter of our discontent is made Glorious by the Sun of York" That the present Government is making efforts to clean the Augean stables of our   “Weapons Development” is like the Sun in Winter. Most, rather than much, remains to be done. Recently a Conference was held under the aegis of the Society for Aerospace Studies and the statements of the Air Chief Marshal and the Defense Secretary. the Customer and the Banker respectively were like a breath of fresh air. They showed that at least two of the pillars of our archaic Socialist state- controlled and inefficient weapons development edifice publicly acknowledge that problems exist. It is a small but important first step because without acknowledgment of the problem there can be no solutions. It remains fo...
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  A quick first assessment of the Chinese Wonder jets  27/12/24                                Prof. Prodyut Das Iss.2 Dated 28/12/24 (updates in colour.)  Iss.3/4/5.    29/12/24. There was much chirping and twittering in Indian dovecotes at the release on 26/12/24 of pictures purporting to be not just one but two Chinese stealth aircraft accompanied by much “and the widows of Ashur are loud in their wails/and Idols are broke in the temples of Baael”. Actually the Chinese aircraft, unless the pictures released are some kind of elaborate fake, are quite modest. If they are fakes then my congratulations to the poster; the last time the Chinese put out pictures of a “futuristic” fighter it looked like a Swiss Army Knife. These look sensible. There is nothing remarkable about the Chinese aircraft unless it is colonial surprise of the sort “How could the bloody Chinks do it?”. The ai...
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  Design logic of a 3 rd level Passenger Transport/Fire Bomber                               Prof.Proodyut Das Design team’s note: The following is an almost verbatim reproduction of a part of our Das Design D 12 Salamander aircraft which was entered into the Royal Aeronautical Society’s 2024 competition. The competition was for a Firebomber with a 2 ton “bomb” load and stringent cruise, minimum speed. range and loiter parameters which could also carry up to 19 Pax. as per part 23. The D 12 Salamander took a top placing in the contest and indeed its design approach of using the past wisely to reduce risks was mentioned in the conference.   For “students” of the design process we have edited the presentation somewhat to emphasise: i)                 The soft aspects of aircraft lore- beliefs, history, cust...
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