Gusya no gusyaibikoresho bya helikoptaAmaseti ya gearboxes za helical ni igikorwa cyitondewe gisaba ubuhanga n'ubuhanga. Iki gikorwa kigoye gikubiyemo gukoresha imashini zigezweho kugira ngo zishyireho kandi zinoze amenyo ya gears, zizemeza ko zihuye neza. Imiterere ya helical ntiyongerera imbaraga gusa ahubwo inagabanya gukururana n'urusaku. Mu gusya no gusya bikomeye, gears zigira urwego rwo hejuru rwo kuramba no gukora neza, bigatuma ziba nziza cyane ku buryo zikoreshwa zisaba imbaraga nyinshi kandi zikora neza.
Ibigo icumi bya mbere mu Bushinwa, ifite abakozi 1200, yatsindiye ibihangano 31 n'amapatanti 9. Ibikoresho bigezweho byo gukora, ibikoresho byo gushyushya, n'ibikoresho byo kugenzura.