передача зі змінним числом обертів
supersonic speed (exceeds speed of sound / Mach 1)
variable-speed with speed control
instantaneous vertical speed indicator / instantaneous vertical-speed indicator (IVSI)
cruise speed / cruising speed
Nr gauge (Nr = speed of rotation) / rotor speed sensor
adjustable legs
adjustable head space feature
adjustable breaker point
adjustable cam
adjustable charge
adjustable choke
adjustable fire line height
adjustable mould
adjustable rear sight
adjustable ring
adjustable screw wrench
adjustable sight
adjustable trigger pull
adjustable upper sling swivel
adjustable valve
adjustable vane
adjustable
height-adjustable seat
internal adjustable scope
adjustable orifice
adjustable propeller
adjustable stabilizer
adjustable surface
adjustable-area jet
adjustable coupler
adjustable diffuser
adjustable-pitch propeller