You've the most annoying habit of intervening when it's not required . You've done it plenty of times before too , in my case . If I've posted that tweet from the Professor , you think I wasn't aware of what Indranil has to say on the issue .
I wanted vstol Jockey to comment on what Prof Das wrote with an unbiased mind & not be influenced by what Indranil & the rest have to say on the matter .
If you want to learn , how are you going to figure out what exactly is the design all about , why was it chosen , is it optimum , etc ? It's thru articles & crtiques like this . That's how you learn, verify & cross verify . Unless you're completely well versed in the art of aerodynamics & fighter design . Are you ?