In ship combat, do the siege weapons hit only the ship? Or might they hit crew or siege weapons?
The siege weapons mounted on ships have their own HP, so you would think there is some way for them to be damaged. And the first ship in the Spelljammer adventure has a broken siege weapon.
But how do you determine what a siege weapon actually hits? Ship vs. weapon vs crew?
In ship combat, do the siege weapons hit only the ship? Or might they hit crew or siege weapons?
The siege weapons mounted on ships have their own HP, so you would think there is some way for them to be damaged. And the first ship in the Spelljammer adventure has a broken siege weapon.
But how do you determine what a siege weapon actually hits? Ship vs. weapon vs crew?
The weapon hits what it targets as long as it beats its AC. It can target pretty much anything same as any other weapon attack.
Usually these weapons have AC. Do they not, in Spelljammer?
Yes
Spelljammer didn't add many (if any) custom weapons. They use the same stat blocks as what is found in DMG.