Originally Posted by
henra
In Germany the P-1 was briefly in discussion but it seems even the manuals weren't yet available in English and it was considered to high of a risk from an overall Program perspective (set up Maintenance/Training/Support/continued development and everthing around it) while being technically indeed quite interesting.
I believe that Japanese defence contractors / government dont have any flexibility. It came up with the possible purchase of Soryu class subs by Australia. A few examples I have seen mentioned, Japan wouldn't give details of specification and capabilities until the contract was signed. Japan was unwilling / unable to do anything locally. It even talk a substantial amount of negoiation to get even basic maintainence done in aus. They would change or adapt the subs they were as designed, Australian subs are mixed sex crews, japanes aren't they were unwilling to do any mods to account for mixed sex crews.
That attitude is changing as Japanese defence contractors get more experience, but it seems to be a real thing