I like the title of this thread "ever been hit by a whale" as opposed to ever hit a whale. Persoanally no, but I had one scare the crap out of me while sailing along on a peaceful night well offshore
in that sort of magic night time quiet when all of the sudden one breached less than a boat length away behind me so I think must have been very close to hitting one.
Also came very close to hitting a sunfish which was a sort of freaky encounter. I was diving
the boat off the wind
doing 7-7.5 knots when I saw something in the water
directly ahead about three or four boat lengths ahead. I wasn't sure what, maybe garbage? A floating tarp? All I could tell was that it was greyish colored, fairly large, and right in front of the boat!
I quickly altered course watching it get closer and recognized it for what it was when it came abeam for having read about them and seen photos. Strange creatures indeed. It was basking at the surface and didn't strike me as being fast enough to get out of my way. It was also huge, my guess was about 8' or 2.5m square.
After the fact I learned they can weigh up to two tonnes which made me gulp. I could have easily missed it if I hadn't been paying attention. Mind you, this was middle of the day hundreds of miles offshore
where you tend to feel a bit safer. Recommend keeping a close watch at all times.