Tyonek Global Services wins contract for UH-1N HUMS integration

Tyonek Global Services LLC has been awarded a contract for the integration of the health and usage monitoring system (HUMS) for UH-1N helicopter.

The firm-fixed-price, cost-reimbursable, sole-source acquisition contract, valued at around $16 million, was awarded by the U.S. Air Force Life Cycle Management Center (AFLCMC) located in Robins Air Force Base, Georgia. Fiscal 2017 aircraft procurement funds in the amount of around $10 million are being obligated at time of award.

The contract work will be performed in Madison, Alabama, with an expected completion date of March 30, 2019.   This contract was a sole-source acquisition.

HUMS

Health and usage monitoring systems (HUMS) is a generic term given to activities that utilize data collection and analysis techniques to help ensure availability, reliability and safety of vehicles. The term HUMS is often used in reference to airborne craft and in particular rotor-craft.

HUMS for helicopters provide diagnostic information required for optimum performance. HUMS sensors and embedded diagnostic software monitor and communicate the health and maintenance needs of critical components.

Activities similar to, or sometimes used interchangeably with, HUMS include condition-based maintenance (CBM) and operational data recording (ODR).

Bell UH-1N Twin Huey

Bell UH-1N Twin Huey (also Iroquois) is a twin-engine medium military helicopter. A member of the numerous Huey family, it first flew in 1969.

The CUH-1N Twin Huey (later CH-135 Twin Huey) was the original version, first ordered by the Canadian Forces.

The helicopter has a fifteen-seat configuration, with one pilot and fourteen passengers. In cargo configuration it has an internal capacity of 220 ft³ (6.23 m³). An external load of up to 5,000 lb (2,268 kg) can be carried.

Its main rotor is powered by a PT6T-3/T400 Turbo Twin Pac made up of two Pratt & Whitney Canada PT6 turboshaft engines that drive a single output shaft. They are capable of producing up to 1,342 kW (1,800 shp). Should one engine fail the remaining engine can deliver 671 kW (900 shp) for 30 minutes or 571 kW (765 shp) enabling the UH-1N to maintain cruise performance at maximum weight.

The UH-1N was later developed into the civil Bell 212. It has also been developed into the upgraded, four-blade UH-1Y Venom.



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