Ngā whanaketanga hou i roto itaputapu porowhita Kua whakaritea te hangarau o te rakau pinion hei huri i te mahi a ngā pouaka miihini helical puta noa i ngā momo ahumahi. Ko te rakau pinion helical, he wāhanga nui o ngā pūnaha taputapu helical, kua kite i ngā whakapainga nui i roto i te hoahoa me te pūtaiao rauemi, e hua ake ana ki te pai ake o te mahi me te roa.

Ko ngā mahi auaha hou e aro ana ki te arotau i te pinion helicalte rakau te āhuahanga me te whakauru i ngā rauemi matatau. Ko te hua o ēnei whakapainga ko te whakaiti i te haruru me te wiri, te whakanui ake i te kaha taipana, me te roa ake o te ora ratonga. He mea nui ēnei whakapainga mō ngā pouaka miihini porowhita, e whakamahia whānuitia ana i roto i ngā mīhini motuka, rererangi, me ngā mīhini ahumahi mō tā rātou tuku hiko maeneene me te whai hua.

E tūmanakohia ana ka whakaratohia e ngā toki pinion helical kua whakapaia he mahi pono ake, he mahi marino ake hoki, kia pai ai mō ngā mahi tino mahi. E oati ana hoki ngā whakapainga ki te whakaiti i ngā whakaritenga tiaki me ngā utu whakahaere, ka tukuna he painga whakamīharo mō ngā kaihanga me ngā kaiwhakahaere.

E matapaetia ana e ngā tohunga mā ēnei ahunga whakamua hangarau ka whakatakoto i ngā paearu hou mō te hoahoa taputapu, ka akiaki i ngā auahatanga hou i roto i ngā pūnaha tuku taputapu, ā, ka whai wāhi ki ngā mahi ahumahi whai hua ake, pumau ake hoki.