1 Truss type
The truss type fuselage is usually the form of triangles. The warren truss construction is now limited to light civilan aircraft and liaison type military planes. With this construction, the frame of tubing supports all the weight and sress of flight. the covering or skin of the plame is made of a special fabric colth stretched over the framework. Afher the cloth is in place, it is covered with a cating of dope to shrink the cloth, seal it airtight, and make is weatherproof. The fuselage includes the cabin and/or cockpit, whichcontains seats for the occupants and the controls forthe airplane. In addition, the fuselage may alsoprovide room for cargo and attachment points for theother major airplane components. Some aircraft utilizean open truss structure. The truss-type fuselage isconstructed of steel or aluminum tubing. Strength andrigidity is achieved by welding the tubing togetherinto a series of triangular shapes, called trusses.