ʻO ka pōmaikaʻi nui loa o ke kalapona kalapona ʻo ia ke kaumaha ma lalo o ka hapaha o ke kila a ʻoi aku ka māmā ma mua o ka alumini, e lilo ia i mea kūpono loa e loaʻa ai ka "māmā". He 30 pakeneka ka māmā ma mua o ka alumini a me ka 50 pakeneka māmā ma mua o ke kila. Inā hoʻololi ʻia nā ʻāpana kila a pau o ke kaʻa me ka carbon fiber composite material, hiki ke hoʻemi ʻia ke kaumaha o ke kaʻa e 300 kilokani. He 20 mau manawa ʻoi aku ka ikaika o ka carbon fiber ma mua o ka hao, a ʻo ia wale nō ka mea i pau ʻole ka ikaika i nā wela kiʻekiʻe o 2000 ℃. ʻO 4-5 mau manawa ka mana hoʻonā hopena maikaʻi ma mua o nā mea metala maʻamau