Variants
- Chinook HC1
- New-build aircraft for the RAF based on the CH-47C, 41 built.
- Chinook HC1B
- Modification of the 41 HC1s with metal rotor blades, survivors converted to HC2.
- Chinook HC2
- Conversion by Boeing of 32 surviving HC1Bs to CH-47D standard, and 3 new build-aircraft
- Chinook HC2A
- Similar to the HC2 with strengthened fuselage using milled structure manufacturing techniques, 6 built.
- Chinook HC3
- Special forces variant based on the CH-47SD, 8 built.
- Chinook HC4/HC4A
- HC2/HC2A aircraft with upgraded engines and avionics under Project Julius. 46 conversions planned.
- Chinook HC5
- HC3 aircraft with upgraded avionics under Project Julius.
- Chinook HC6
- New-build Chinooks announced in 2009, expected to be delivered beginning in 2014. Originally 24, later reduced to 14 aircraft (12 helicopters plus 2 attrition replacements).
Read more about this topic: Boeing Chinook (UK Variants)
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