Thee skin is aluminium lithium alloy. 1mm generally but in some places on the craft it is milled down to 0.5mm The latest jet liners A380 / 787 are made from c

Thee skin is aluminium lithium alloy. 1mm generally but in some places on the craft it is milled down to 0.5mm The latest jet liners A380 / 787 are made from composites, even their body. Many other craft have composite wings.