Hoʻomākaukau ʻia nā ʻāpana ʻāpana pale e ka ʻupena kokoke i ka hana ʻana a i ʻole ka mīkini, a loaʻa kahi manaʻo ākea ākea i nā kahua he nui e like me ka aerospace, nā lako kaua a me nā ʻenehana uila ma o ka hoʻohana ʻana i nā waiwai maikaʻi loa e hoʻopili ai i ka ikehu a me ka cushioning o ka pahu alumini.