A structural component for example an aircraft door or {HEAD ~ aircraft body section} is cast of lightweight metals as {TAIL ~ an integral structure} with an outer skin reinforced by stiffening ribs forming a first grid structure and by stiffening walls forming a second gird structure integrally connected to the first grid structure as a result of casting 
A structural component for example an aircraft door or { HEAD ~ aircraft body section } is cast of lightweight metals as { TAIL ~ an integral structure } with an outer skin reinforced by stiffening ribs forming a first grid structure and by stiffening walls forming a second gird structure integrally connected to the first grid structure as a result of casting
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH