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Originally Posted by Kazuaki Shimazaki II
Won't they do the calcs using the same or similar "official" numbers, though?
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Yeah, as far as I know they can, my guess is that they would probably come up with official performance results which are pretty pitiful.... and probably what the navy wants. Heck, if official results are accepted then one could just accept a 20knot LA speed and a 800ft diving depth. What is probably agreed upon the most is that everthing "official" is an underestimate, but how much of an underestimate is the real question. Some even theorize that a nuclear aircraft carrier results are grossly underestimated and that a carrier can actually reach 40knots.
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Can't they use civilian systems to get some kind of estimate? It won't be very precise, but at high speeds, 100% more power buys you only about 4 knots - so the guys assuming an Akula putts along at 35 knots are saying its overall T/W is over 2x as good as the guys assuming it putts along at 28 knots - so there should be a very wide margin of errror.
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Well, sorta.... that's like using the stats of a 747 engine to estimate the performance of a F22 fighter. Yes they are both jet engine, but are their stats even near the same? Civilan nuke reactor stats really are probably going to tell you even less about navy reactor stats IMHO. Really just how much these engines can really crank out is a mystery. They really are the most secret part of a subs system... ultra super secret