You have to do three things. First, examine the hat that Danny knocks off for a secret. Second, in the room that has the stuck door, on the right, is a secret Log Book with the other half of the ship's name. Alex stays at the radio and Brad with Julia went down the hole. Find the generator (it looks like a board with a bunch of holes in it next to some levers) and turn it on. Alex says the name of the ship once it goes back to a scene with him, though in Curator mode this may not happen.