ʻO ke keʻena ho'āʻo kiʻekiʻe a me ka haʻahaʻa haʻahaʻa, i ʻike ʻia ʻo ke keʻena hoʻāʻo kaiapuni, kūpono no nā huahana ʻoihana, kiʻekiʻe wela, haʻahaʻa haʻahaʻa haʻahaʻa hilinaʻi hoʻāʻo.No ka uila a me ka uila 'enekinia, kaʻa a me ka kaʻa kaʻa, aerospace, moku a me nā mea kaua, koleke a me nā kulanui, 'epekema noiʻi wae a me nā huahana e pili ana, 'āpana a me nā mea i loko o ka wela wela, haʻahaʻa wela (alternating) cyclic loli i ke kūlana, ka ho'āʻo o kona mau hōʻailona hana no ka hoʻolālā huahana, ka hoʻomaikaʻi ʻana, ka ʻike a me ka nānā ʻana, e like me: hoʻāʻo ʻelemakule.