Numerical control (NC) thev naus laus zis los ntawm kev xav tau ntawm kev lag luam aviation. Thaum xyoo 1940s, ib lub tuam txhab American helicopter tau npaj lub tswv yim.
Thawj lub tswv yim rau NC tshuab cuab yeej tau tsim nyob rau hauv 1952 los ntawm MIT, uas tsim ib tug peb -axis NC milling tshuab. Los ntawm nruab nrab -1950s, hom NC milling tshuab no tau raug siv los tshuab cov khoom siv dav hlau. Nyob rau xyoo 1960, NC tshuab thiab kev ua haujlwm tau dhau los ua neeg paub tab thiab txawj ntse, thiab NC cov cuab yeej siv tau siv ntau yam kev lag luam, tab sis kev lag luam aerospace tseem yog cov neeg siv loj tshaj plaws. Qee lub tuam txhab dav hlau loj tau nruab nrog ntau pua NC tshuab cuab yeej, feem ntau cov tshuab txiav. NC-machined qhov chaw muaj xws li cov vaj huam sib luag, kab teeb, tawv, bulkheads, propellers, thiab pwm kab noj hniav rau aircraft cav casings, shafts, discs, thiab hniav, nrog rau cov kab noj hniav tshwj xeeb rau cov kua foob pob ua ntxaij cav combustion chambers. Nyob rau theem pib ntawm NC tshuab cuab yeej kev txhim kho, nruam trajectory NC tshuab cov cuab yeej yog lub hom phiaj tseem ceeb, siv cov kev tswj tsis tu ncua.