fuselage is manufactured with an insert plug to
produce the recess for the sustainer system doors
and the aperture for the engine box cut-out.
Fuselage reinforcements are bonded between Bulkheads
8 and 9. Structural testing for certification
purposes proved the fuselage was stiffer with the
aperture and the reinforcements than without.
monocoque engine box is made from carbon fibre
reinforced composite material for minimal weight and
adds to the overall strength of the fuselage. It is
mounted to the recess lip with M6 bolts.