ʻO nā puʻu kila he ʻano kila me ka laka, ʻo kona ʻāpana he ʻano pā pololei, ʻano ʻāwī a me ke ʻano Z, a me nā mea ʻē aʻe, aia nā ʻano nui a me nā ʻano pili.ʻO nā mea maʻamau keʻano Larsen, keʻano Lackawanna a pēlā aku.ʻO kāna mau mea maikaʻi: ka ikaika kiʻekiʻe, maʻalahi ke komo i loko o ka lepo paʻakikī;Hiki ke hana ʻia ke kūkulu ʻana i loko o ka wai hohonu, a hoʻohui ʻia nā kākoʻo diagonal e hana i hale paʻa inā pono.Hana wai maikaʻi;Hiki ke hana ʻia e like me nā pono o nā ʻano like ʻole o nā cofferdams, a hiki ke hoʻohana hou ʻia i nā manawa he nui, no laila he nui nā mea hoʻohana.