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.
From the table in this answer: the tail group of the 747-100 and 747-200 is 11,850 lbs. In order to find the weight of horizontal and vertical stabiliser, we can divide up the weight according to tailplane surface.
Table 9-2 in Torenbeek gives the ratio of horizontal tail surface/wing surface as 0.267 in table 9-2, for both the 100 and the 200. Wikipedia gives the wing area as 511 m$^2$, so horizontal tail area is 136 m$^2$.
In the same book table 9-3, vertical tail surface ratio is given as 0.196 so vertical tail area is 100 m$^2$.
Weight for the 747-100/200 is therefore:
- Horizontal stabiliser = 136/236 * 11,850 = 6,830 lbs
- Vertical stabiliser = 100/236 * 11,850 = 5,020 lbs
Above weights is with all equipment installed: actuators, hydraulic system lines, rudder & elevators, stabiliser incidence electric motors etc.