VAR-30MK ser.4 / ВАР-30МК сер.4 Rate-of-Climb Indicator

VAR-30MK ser.4 / ВАР-30МК сер.4 Rate-of-Climb Indicator

VAR-30MK ser.4 (ВАР-30МК сер.4) is a diaphragm-type rate-of-climb indicator used on Mi-8, Mi-17 and Mi-171 helicopters to measure and display the aircraft vertical speed during climb and descent. The instrument provides real-time indication of vertical motion and supports precise altitude and flight profile control. Designed for aviation use with high reliability and readability under cockpit lighting conditions. Offered as a standalone certified aviation instrument for sale with traceability and documentation available subject to contract.