Je was op zoek naar: vibratiuns (Frans - Engels)

[ .e dussier du sie~e devrait cpuuscr la forme de la ~rtlunn,~ vertcbrale . l~n support luutbaire reglahle assurerait ic ulaintien de la ~uurhe nctrruale du ra~hi5 i~tmbaire ~t ~mpecherait la ~ulunne crttiere dz se cuurher v~ers i'avant . le ~uussin du sie~e devrait ctrc ctudit~ de 1a~un ~ assurer tn~ certain su ii >urt au~ ~«isses . c)n devrait ~ussi .~,~ l,r ~on~e 1~> tiun . ~~is~r a cmpccher la transrnissiun d~s vibratiuns dc la cellule ;tn pilute et a att~~nucr les f~c~r~es de tle~eleration l~~r j'ttn ~~~i~lent ~ventut~l .
adu p tiun uf ;tn ahnurrttal ~sittin f'~ !~usttue b~ tlt~~ itilot . . in urd~r tu cuntrrll the cullective, the pilut is nhli~~e~ : tu lean tu tlte left . l he left h ;rn~i, which a~tivates the crtlle~tice lever . is half 11e~e ;l th~~ rigltt arm, which a~tivates the et~lic, is bent at the elhuw, almust at riaht ;ln~,les . generallti tlle handle i~ tctu ill ;,'il frtr the iorearm tu r~~st un the thi,;h . i-lence the f~ilut hol~is his hand as luw as 1~osihle tu c~+nt pensate .