AG-77-15

AG-77-15 System Overview

The AG-77-15 is a gyroscopic attitude indicator designed to provide visual information about aircraft attitude relative to the true horizon in roll and pitch.

AG-77-15 Functional Role

The instrument provides roll, pitch, and sideslip indication, and generates electrical signals proportional to roll and pitch for transmission to onboard systems.

AG-77-15 Aircraft Application

The unit is installed on fixed-wing aircraft and helicopters, including An-28, An-140, Mi-8AMT, Mi-17, and V-3, as part of flight and navigation instrument systems.

AG-77-15 System Integration

The instrument operates within onboard avionics systems using a gyroscopic assembly with a correction system and built-in warning indicators, ensuring stable and accurate indication under various flight conditions.

Product Type: Gyroscopic attitude indicator
Function: Visual indication of roll, pitch, and sideslip; generation of roll and pitch electrical output signals
Application / Where Used: Flight and navigation instrument systems
System / Installation Area: Aircraft instrument panel and onboard avionics
Compatible Aircraft / Equipment: An-28, An-140; Mi-8AMT, Mi-17, V-3 helicopters
Roll Range: ±360°
Pitch Range: ±85°
Roll Limit Warning Angles: ±(15 ±1.5)°; ±(32 ±2)°
Sideslip Indication: Available
Warm-Up Time: ≤ 3 min
Indication Error (<8° bank): ≤ 1.4°
Indication Error (>8° bank): ≤ 0.3°
Indication Error (oscillating base): ≤ ±1.5°
Indication Error (vibrating base): ≤ ±2.5°
Indication Error (after 180° turns, 3 min): ≤ ±4°
AC Power Supply: Three-phase, 36 V (+1.8/−3.6 V), 400±20 Hz
AC Current Consumption: ≤ 0.45 A (phases A, B, C)
DC Power Supply: 27 V (+2.4/−3.0 V)
Dimensions: 107 × 107 × 250 mm
Weight: ≤ 4 kg
Technical Documentation: Technical documentation available upon request

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Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.