SchemeColour nameFS numberRALHumbrolXtraColorVallejo Model ColorVallejo Model AirRevell (36 = acryl; 32 = enamel)Hataka
Standard #1Overall Olive Green 34094 6031 117 X116 70.975 ?? 71.250 32362 / 36362 ~152
Standard #2 [CH-47F]Overall Grey 36320   128 X258 70.830 71.120   ~035
Markings Light grey 36375?   127   70.989 71.046 32176 / 36176 ~034

Check www.paint4models.com for an extensive conversion table with lots of colour and paint systems.

The Ch-47F is officially overall FS 36118, but in the real world this colour looks far to dark. FS 36320 is a better match for the colour applied on the CH-47F

 

Boeing CH47D Chinook-1A
Delivery scheme of the first (revised) Chinooks.
Note the protection near the exhaust of the more powerful engines.
Boeing CH47D Chinook-1B
Delivery scheme odf the second series of Chinooks.
The protection plate has been omitted s the exhausts have ben repositioned and are pointing more upwards and outwards. Later retrofitted to the first series.
Further the antennas and markings have changed.
Boeing CH47F Chinook-1
Delivery scheme of the CH-47F Chinook.