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Defence Helicopter

Honeywell to provide more T55 engines for Chinooks

9th March 2021 - 09:45 GMT | by The Shephard News Team

Turboshaft engines, electronic control kits and installation kits are included in latest $476 million deal.

Honeywell International will supply the US Army with an undisclosed number of additional T55-GA-714A turboshaft engines for CH-47 Chinook helicopters, under a new $476.06 million contract announced by the DoD on 8 March.

Also included in the deal are electronic control kits and engine installation kits for the T55 (pictured).

Work locations and funding will be determined with each order, the DoD noted. It expects Honeywell to complete work on the contract by 31 December 2023. 

In October 2020, the US Army awarded Honeywell a five-year contract for full overhaul and repair of T55-GA-714A engines that power its CH-47F Chinook helicopters.

Honeywell has produced more than 6,000 T55-series engines for military and civil use, and the type has accumulated more than 12 million flight hours. 

An engine improvement programme is under way for the T55 that will increase shaft horsepower from 4,777 to 6,000. This is intended to allow the CH-47F to increase its useful load at higher density altitudes and will further reduce maintenance hours, Shephard Defence Insight notes.

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