Ukrainian Crazy Submarine

In exercises with NATO corvette "Ternopil" was nicknamed Ukrainian Crazy Submarine:
"There was a storm and put all the same combat mission. NATO has acted on the instructions: workaround, etc. Our same went straight into the waves, so that one could see only the tip of the mast, and when the tide receded for a second, fired a volley. Right in the top ten. And they again faced a wave. A moment earlier or later, and ... well, you know. NATO members were shocked, and since then the name is left. "