UH-60 Black Hawk® Military Global Sustainment
Unrivaled Support
Moog is the OEM for a number of different systems on the UH-60 Helicopter. Our main flight controls include the Pitch Trim Actuator, Vibration Control Actuation System, and Hydraulic Accumulator. As the OEM supplier for UH-60, Moog is also the logical choice for follow-on product support. Our repair and overhaul facilities are staffed, maintained, and stocked to satisfy turnaround time requirements. These resources allow Moog to provide an unsurpassed level of support to our customers worldwide.
Sustainment Solutions
Moog's highly skilled engineers can apply state of the art technology into aging aircraft systems, resulting in increased reliability, lower operating costs, and extended useful life.
Pitch Trim Actuation
The UH-60 utilizes a Moog, Pitch Trim Actuator as part of the overall helicopter flight controls. A Pilot’s force input at the stick is mechanically transferred to the input linkage of the Pitch Trim Actuator. The input linkage is connected to the output linkage through the Boost Actuator, which multiplies the pilot’s input force. Movements at the output linkages are mechanically transferred to the main rotor of the aircraft. Trim functionality is controlled by the Pilot’s signal input, which will command either the Pitch Trim Actuator to hold a specific position, therefore trimming the main rotor in the corresponding direction.
Vibration Control Actuation System
The UH-60 utilizes our Vibration Control Actuation System (VCAS). This system replaces traditional passive systems by measuring vibration levels at key locations in the aircraft and applying cancellation forces in an equal and opposite direction. The VCAS system adjusts these forces as the aircraft maneuvers and as payloads change thereby increasing overall efficiency. This also results in reducing airframe fatigue, pilot fatigue and overall maintenance costs.
Self-Displacing Accumulator
The SDA (self-displacing accumulator) provides hydraulic pressure to the APU (auxiliary power unit) motor used to start the two engines. It consists of high-pressure hydraulic fluid and dry nitrogen chambers separated by a piston, and a low-pressure hydraulic fluid chamber (reservoir) containing a second piston connected to the first piston. A mechanical tape attached to the piston rod indicates high-pressure chamber volume from 0 (discharged) to 100% (fully charged). After motor start the hydraulic fluid is circulated, or returned back to the reservoir (self-displacement).
Avionics Offerings
Genesys Aerosystems is a Moog company, facilitating our avionics product line.
*The appearance of U.S. Department of Defense (DoD) visual information does not imply or constitute DoD endorsement.
BLACK HAWK® is a registered trademark of Sikorsky Aircraft Corporation. Used with permission.