There's been debate over operating torpedoes and missiles fired from model boats/subs for donkeys years now...if you don't go mad with them and have the things firing forty feet up in the air, or capable of blowing up another ship, my thoughts are that you'd be ok. My torpedoes that are going in the Akula will only fire about ten/fifteen feet...enough to look good, but incapable of damaging much if they do hit anything. Look at Mick Higgott's...they look terrific, but they wouldn't even ruffle a duck's feathers.