US Army procures Chinook helicopter T55 engines.

Honeywell International Inc., Phoenix, Arizona, was awarded a $476,065,362 firm-fixed-price contract for the procurement of CH-47 aircraft T55 engines, CH-47 aircraft T55 engine electronic control units, and CH-47 aircraft T55 engine installation kits.

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CH-47F Chinook helicopter (Picture source: US Army)

Bids were solicited via the internet with one received. Work locations and funding will be determined with each order, with an estimated completion date of Dec. 31, 2023. U.S. Army Contracting Command, Redstone Arsenal, Alabama, is the contracting activity.

The CH-47 Chinook is an advanced multi-mission helicopter for the U.S. Army and international defense forces. The Chinook is the helicopter of choice for humanitarian disaster-relief operations, in missions such as transportation of relief supplies and mass evacuation of refugees. Chinooks serve the armed forces of 19 countries around the world. Honeywell supplies a variety of systems for the helicopter, including the T-55 turboshaft engine. To date, Honeywell has manufactured more than 6,000 T55 engines, which are said to have logged approximately 12 million hours of operation on the CH-47 and MH-47 Chinook helicopters

At its introduction, the T55 produced 1,600 shaft horsepower (SHP). Several decades and generations of development later, today’s T55 produces 4,800 SHP and powers the CH-47 Chinook to a maximum speed of 196 mph (170 knots). The latest configuration T55-714 delivers 22 percent more power and uses seven percent less fuel than its predecessor.

To date, more than 6,000 T55 engines have been produced, logging some 12 million hours of operation on the Boeing CH-47 Chinook and MH-47 helicopters  (Picture source: Honeywell)