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Originally Posted by Kapitain
alot of figures have been releaced but subs built normaly beofre 1975 would be not classified alfa was built in 1969 so it should be unclassified normaly subsmarines stay classified for 30 years unless some are in active service still
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Even from subs which are 30 years+ old and out of service you can judge design themes and issues, something countries having used these subs and using their successors wish to avoid.
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alfa is over 30 years old and is declassified so is the older subs like yankee echo ect ect how do these people guess and get the same numbers over and over again
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Copying from each other, or simply coming to the same conclusions from the available data like hull form, or estimated data, like hull material and strength as well as power plants.
The latter is indeed educated guessing, but is not the same as knowing true facts, and occasionally may vastly differ from these.
Regards,
Robert