What are the weights of vertical and horizontal stabilisers of a Boeing 747-400? For my math exploration (IB) I am doing something related to aircraft. So I was wondering what the weights of the horizontal and vertical stabilisers were. If you do know the weights please state the source of the information too.
From my time as an intern at the plant at Paine Field, I know that a 747-400 wing and center fuselage section weighs 42 tons.  That's just the structure itself.