1. Ngā huarahi tukatuka:
Ko te tukatuka paipa kōtaha maitai kore-kowiri tira e wehea ana ki te whakakoi me te whakakoi maha;
He tukanga whakapūtanga o te paipa kowiri tira mā te raina tukatuka me te whakapūtanga paipa, mā te whakakotahi i te whakarerekētanga o te whakaputanga o te ngongo whakapūtanga hei whakatakoto i te huinga o ngā paerewa paipa āhua motuhake.
Ko te hanga maha-whakairo ko te hanga tuarua, kei roto i te ngongo porowhita, i te ngongo tapawhā rānei i runga i te pūtake o te mīhini anō i muri i te mīhini ki roto i te ngongo ki roto i te huinga o ngā ngongo āhua-motuhake.
2. Te rerekētanga i waenga i te whakahāngai tuatahi me te whakahāngai tuarua:
Ko te kounga o te tukanga hua he pai ake i te mea o mua, engari ko te kounga me ngā whakaritenga tukanga motuhake kāore e tino rerekē. Ko ētahi ngongo ahua kowiri tira i roto i te wāhanga whakawhiti o te uaua uaua, ā, kāore e taea te whiriwhiri i te tuarua o ngā wā, neke atu rānei. Ko te hangarau tukatuka paipa kowiri tira Hainamana me ngā taputapu kāore e taea te whakatutuki i te taumata matatau ake o te whiringa tika.
3. Taupānga:
He whānuitia te whakamahinga o ngā ngongo kowiri tira i roto i ngā wāhanga hanganga, ngā taputapu me ngā wāhanga miihini.
4. Rerekētanga ki te ngongo porowhita noa:
Ko ngā paipa āhua kowiri tira he nui ake te wā o te inertia me te modulus whakawhiti-wāhanga, he nui ake te piko me te kaha torsional, ka taea te whakaiti i te taumaha o te hanganga, te penapena i te maitai.
Wā tuku: Maehe-12-2018