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RAF to upgrade Chinook HC4s
The HC6A upgrade for the RAF’s Chinook HC4 will provide the helicopters with the same DAFCS that is used in the new-build HC6, seen here. Jamie Hunter THE ROYAL Air Force is to upgrade its fleet of Chinook HC4 helicopters to a new HC6A standard, by replacing the analogue flight control systems with the Boeing Digital Automatic Flight Control System (DAFCS). Work will be carried out over the next 12 months on all 38 HC4s now in service. The DAFCS

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