Would be helpful if you'd have thrown us a few bones to get the conversation going.

Try these for starters:

 

 

MU90 Eurotorp website   (when the site works)

 

 

 

BAE's Stingray site (not a lot there)

 

If you want US efforts,

there's this article from Navysite.DE on the Mk 46,

 

the Wiki entry on the Mk 46 family,

 

the Wiki entry on the Mk 50 torpedo,

 

the Mk 50 from Navysite,

 

the Wiki entry for the Mk 54 torpedo,

 

and Raytheon's pdf for the Mk 54 (not one of their more informative pdfs,..).

 

I see little reason why any given navy would see much sense in procuring both the MU90 and Stingray, or a combination of these latest ones.

 

If anything, it would more likely be a navy that was a longtime user of the Mk46 family

was in the process of upgrading to greater capabilities than any of the older-technology Mk46's had to offer, even though Raytheon's Mk54 is apparently in kitform to address the issues of antiquated capability in the Mk46s.

 

 

 

 

 

 

 

I had already read all those descriptions, and it seemed to me (from a layman's perspective) that they have more or less the same capabilities. Yet I am translating a text that mentions a Navy procuring both, which is why I wanted to know more about how these two torpedoes compare.