Makina amphamvu a F series, F87 ndi makina olimbitsa thupi a Dual station, mwachitsanzo, kuphunzitsa Kukulitsa Miyendo ndi kupindika mwendo pamakina amodzi omwewo.zonse zimasintha mosavuta kuchokera pamalo okhala, kukupatsani mwayi wokhazikika womwe umathandizira makina ochita masewera olimbitsa thupi.