Yes, I have sunk both barges but using two torpedoes per boat. After one torpedo hit barges only stopped instead of sinking immediately. As for 185 ton ships it is amazing resistance!
I have also checked Type-36A destroyer third time. It is something strange with this ship. She withstood three under-keel torpedo detonations and...missed a short while later exactly as I had reported here a week earlier.
OK, that is all from my side about this bizarre problem. Do what you want with it...
Happy New Year!
