Annnnnd... Brat shows his true colours.
Perhaps. Maybe you do, maybe you don't. The only thing you can be sure of is that you can't be sure. Working on and flying an aircraft doesn't allow you to understand all of its properties. For example, I'd like to see you integrate pressure differential over the entirety of an aerofoil profile. Flying a Cessna doesn't mean you're the indisputable authority on the physical laws that allow it to fly.
What the heck do you mean "no doubt?" How can you possible be qualified to claim that with THAT amount of certainty?
Also, no one's arguing for the J-20's being definitely 15 tonnes, it's YOU who's arguing that the J-20 definitely cannot be 15 tonnes, as if you're some sagely ubermensch who knows every single design detail of not only your country's top secret fighter jet, but also an adversary country's fighter jet.
I've always suspected you of being this type of person, and finally there's hard evidence. You're the type to demand respect because of no reason save your age. No, your age doesn't constitute reason to have you shown any more deference than your junior peers. You will be treated the same as everyone else regardless of your age. Not sure if you've heard but respect is earnt, not given, and what have you done in this thread to deserve the respect you demand from manqiangrexue?
Getting old takes no effort, you can literally sit there, do absolutely nothing and still get old. Doing nothing and still getting respect doesn't sit well with me. So tell me, Brat, what have you accomplished that you believe justifies the amount of respect you demand?
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