MGV-1SK Series 01

Function of the MGV-1SK Series 01 gyro vertical

The main function of MGV-1SK Series 01 is continuous measurement of aircraft roll and pitch. The unit determines aircraft attitude relative to the vertical and outputs corresponding electrical signals to onboard consumers. These signals may be used by pilot-navigation systems, attitude indication units, automatic flight control systems and related stabilization equipment. The gyro vertical is installed as a remote avionics unit rather than as a cockpit display.

Two-gyro force stabilization principle

MGV-1SK Series 01 uses a two-gyro force-stabilized design. This scheme allows the instrument to maintain a stable vertical reference and reduce attitude errors during aircraft motion. The internal gyro platform is mounted inside a suspension frame and works with correction and stabilization circuits. Force stabilization improves the ability of the unit to hold the vertical reference while transmitting roll and pitch data to aircraft systems.

Application of MGV-1SK Series 01

MGV-1SK Series 01 is used on Soviet and Russian aircraft where compact attitude reference equipment is installed. The source context indicates application on Tu-154, An-72, An-74, Yak-42, Mi-26 and Ka-32 aircraft and helicopters. Actual applicability depends on the installed avionics configuration, aircraft modification and maintenance documentation. For replacement, the exact series, system connection and mounting requirements should be confirmed before supply.

Power supply and readiness of MGV-1SK

The MGV-1SK Series 01 unit operates from both DC and AC aircraft power supplies. The source context indicates 27 V DC and 36 V AC at 400 Hz. After power-up, the unit requires a readiness period for the gyros to reach operating condition and for the vertical reference to be established. The standard readiness time is up to four minutes. The unit also includes a caging / erection reference, with erection accuracy specified from the caging device.

Installation and ordering of MGV-1SK Series 01

MGV-1SK Series 01 is designed as a cylindrical monoblock installed in an aircraft equipment area. The source context indicates installation in a dedicated A-2P shock-mounted frame for damping fuselage vibration. When ordering, the buyer should confirm whether the requirement is for the gyro vertical only or for the unit with its mounting frame. Required condition, product passport, repair certificate, test report, storage records and aircraft system documentation should also be specified.