8AT-2710-000

Main rotor blade 8AT-2710-000 for Mi-8 family helicopters

8AT-2710-000 is an all-metal main rotor blade designed for installation on the five-blade main rotor system of Mi-8 family helicopters and related variants. The blade converts rotational power transmitted through the main rotor hub into lift and propulsive force required for takeoff, hover, forward flight, maneuvering and landing. It operates as part of the main rotor assembly and is exposed to continuous aerodynamic, centrifugal, bending and vibration loads. Because the blade directly forms the aerodynamic working surface of the rotor, its geometry, balance, surface condition and documentation status are critical for normal operation.

Lift generation through the 8AT-2710-000 blade

The 8AT-2710-000 blade generates lift as it rotates with the main rotor hub. Changes in collective and cyclic pitch alter blade angle and allow the helicopter to climb, descend, hover and maneuver. The blade must maintain stable aerodynamic characteristics across the full operating envelope, including changing airflow, vibration and load distribution along its span. Its rectangular planform, modified NACA-230 profile and geometric twist support the required lift distribution along the rotor radius. The twist helps balance induced velocities and lift between the root and tip areas of the blade.

All-metal construction of 8AT-2710-000

The 8AT-2710-000 blade has an all-metal construction based on a pressed aluminum alloy spar. Trailing edge sections are bonded to the spar to form the rear part of the aerodynamic profile. This structure provides stiffness and strength while keeping the blade within the required mass range for the Mi-8 rotor system. The blade has a rectangular planform and constant chord on the regular working section. Its structure includes multiple bonded tail sections, which form the aft part of the airfoil and must remain in correct condition for aerodynamic performance and structural integrity.

Protection and monitoring systems in 8AT-2710-000

The 8AT-2710-000 blade is equipped with an integrated spar damage monitoring device and an electro-thermal anti-icing system. The spar monitoring system is intended to support control of structural condition during operation. The anti-icing system heats the blade and allows operation in icing conditions according to the aircraft documentation. These systems are part of the blade’s operational suitability and should be checked together with the blade passport, aircraft maintenance records and service bulletin status. Electrical continuity, heating system condition and spar monitoring data are important during inspection and acceptance.

Application of 8AT-2710-000 on Mi-8 / Mi-17 helicopters

The 8AT-2710-000 main rotor blade is used on Mi-8T, Mi-8MT, Mi-8MTV, Mi-17, Mi-171 and related helicopter variants. It is installed as part of a five-blade main rotor set on compatible main rotor hubs. The blade may be supplied individually or as a complete set of five for one rotor system, depending on maintenance requirement and availability. Since Mi-8 family helicopters may differ by modification, manufacturer, overhaul history and service bulletin status, applicability must be confirmed through the aircraft parts catalog, blade passport and approved operational documentation.

Identification and service control of 8AT-2710-000

The blade may be referenced as 8AT-2710-000, 8АТ-2710-000, 8AT.2710.000 or 8AT2710000. These designations refer to the same main rotor blade type, but exact applicability and remaining life are controlled through documentation. Assigned resource, calendar life and possible life extension are defined by manufacturer bulletins and inspection results. For supply, the buyer should confirm whether the requirement is for one blade or a full set, the required condition, remaining resource, passport availability, anti-icing system status, spar monitoring status and compliance with applicable service bulletins.

Product Type: Main rotor blade, all-metal construction
Designation: 8AT-2710-000
Alternative Designations: 8АТ-2710-000, 8AT.2710.000, 8AT2710000
Function: Lift generation and thrust production through the main rotor system
Application / Where Used: Main rotor assembly and aerodynamic control system
System / Installation Area: Five-blade main rotor system
Compatible Aircraft / Equipment: Mi-8T, Mi-8MT, Mi-8MTV, Mi-17, Mi-171 helicopters and derivatives
Rotor Configuration: Five blades per main rotor hub
Construction Type: Pressed aluminum alloy spar with bonded trailing edge sections
Planform Shape: Rectangular
Aerodynamic Profile: Modified NACA-230
Blade Length: 10,080 mm
Main Rotor Radius with Hub: 10.65 m
Main Rotor Diameter: 21.3 m
Blade Chord: 520 mm
Maximum Profile Thickness: Approximately 62 mm
Relative Profile Thickness: Variable; 12% near the root sections and down to 11.38% on the main working section
Geometric Twist: Smooth decrease of blade setting angle from root to tip
Number of Trailing Sections: 21 bonded tail sections
Blade Mass: Not more than 140 kg
Anti-icing System: Electro-thermal heating system
Spar Monitoring: Integrated spar damage-sensing device
Manufacturers: Kazan Helicopter Plant / KVZ; Ulan-Ude Aviation Plant / UUAZ
Assigned Service Life: 2000 flight hours, subject to applicable manufacturer bulletins
Calendar Service Life: 7 years, depending on storage conditions and applicable manufacturer bulletin
Storage Life in Preservation: 1 year
Service Life / Overhaul: According to manufacturer bulletins and inspection results
Condition: As applicable
Technical Documentation: Blade passport, component logbook, service bulletins, operating and maintenance documentation

All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.

In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.

Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.

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.