Re: Any tips for removing corroded bolts at rudder?
It lookis like the nuts are off, but the bolts are still stuck in their sleeves?
PBlaster and a big wrench, or a nut splitter if needed, to remove the nuts. Then use a c-clamp to press the bolts out of the sleeves if need be. Once they start to move you should be able to tap them out.
A small maul, deadhammer, or similar can be a great tool in a restricted place like that.