LT,
the orange is a REXTORP (REcoverable Excesisie TORPedo) overall white is a live, warshot torp.
I was an HSL ordie we would usally load REXTORPS. here are some pics
MK-50 REXTORP
more MK-50s the last torp (background) is a MK-46 blue and gold painted weapon are classified as dummy/drill, usually for practice loads and not authorized for flight.
SH-60 with MK-46 REXTORP