[Defiance]

Saw a docu not long back with it in

They found the covering had two different sized holes/indents

They reckoned it was (easiest term for me from memory) to absorb two differing frequencies bounced at the hull (or somert to that effect)

An account either by records or interview (memories so bad it fails me lol) said the sub seemed totally cloaked and nothing detected them (maybe someone more historically minded would know which sub/captain ? )

Not that i would like it in-game as such, rather takes the fun and intensity away i'd feel

Hey walsh, you in the UK (guess your not, just seen ya sig) i think we musta seen the same docu, i think i saw it 2 mth or so ago, can't rem which channel though