коробка передач
8-speed automatic gearbox
speed change lever
supersonic speed (exceeds speed of sound / Mach 1)
variable-speed with speed control
instantaneous vertical speed indicator / instantaneous vertical-speed indicator (IVSI)
Nr gauge (Nr = speed of rotation) / rotor speed sensor
Motor PWM speed separated from PID speed
gearbox / gear box
crash-type gearbox
epicyclic gearbox
input gearbox shaft
angular gearbox
antitorque gearbox
central gearbox
propeller gearbox
accessory drive gearbox
tail gearbox
gearbox adapter
gearbox compartment (of a tank)
gearbox dipstick
gearbox main drive shaft
gearbox oil filler
accessory gearbox
gearbox
permanent change of station
pitch change beam / link / rods
quick-change barrel
area change forecasting
change lever
change lever shank
change-lever spring
fire change lever