The orders are needed because the transport arm of the HCSAF is aging fast, the oldest C-440s are now fast reaching their end-of-lifes and the C-360 and C-420 fleets are also due for withdrawal within the next couple of years.
The HCSAF had been planning to recapitise it's C-440 fleet for some time but was waiting for the result of work on the Mark 5 of CAC's airliner. The Mark 5 has 2 fuselage plugs and can carry 20% more passengers or freight compared to earlier 440s. The fuel system has also been totally redesigned and gives the 440-5 an extra 27% range. Delays in developing the Mark 5 meant that the HCSAF ordered 15 C-440Cs (based on the Mark 4) to keep the transport arm going.
The 460 (which is likely to be the C-460 in military service) is a two-engined version of the 440-4 though also has a modified wing. The HCSAF are purchasing these for their VIP fleet to replace types like the C -360. The order is expected to be made official next week. The first 440-5s will be rolled out for civil customers later this year, the first C-440D is expected next year. The existing C-440C order (which has 8 aircraft to go) will be concluded though the final couple may be turned into the new model.
