Tail Cone Section (UH-1).
Aluminum alloys in the form of shells are most generally used in
making the fuselage, nacelles, wings, and empennage.
fuselage constructions are the truss and monocoque.
The truss is a
rigid construction; and the monocoque is shell-like and gets its
shape from formers, frame assemblies, and bulkheads.
strength while keeping weight down is the main problem in monocoque
The semimonocoque and reinforced shell are the most
widely used fuselage constructions in present-day aircraft.