But one of the key elements of the Block II upgrade is the new engines. So, let’s take a look at the Honeywell T55-GA-714C turboshaft engines. New Honeywell T55-GA-714C engines add 22% more ...
The project is to upgrade "EMC32T Hydraulic Metering Assembly (HMA) fuel control on the T55 engines, supporting the CH-47 Chinook helicopter fleet," per the site.