Here is my addition (Image removed from quote.)
or be 82 years old and have these 2 @ your servive (Image removed from quote.)
One's pumped with silicone the other's heavily photoshopped.. dunno..I'd hit em both.
That is a great demonstration of buoyancy there. I bet modern subs use something similar to break the surface like that.
or be 82 years old and have these 2 @ your service (Image removed from quote.)