Much of the HCSAF's tanker fleet of KC-440s are based on older models of the standard HCSAF transport aircraft and the first will be coming up to retirement soon. Although some new KC-440s have been built over the last couple of years the HCSAF may move to the newer C-460 for future tanker builds.
The C-460 is based on the 440 but is two-engined instead of four and has a more advanced wing and avionics. A KC-460 will have a longer range than existing KC-440s and running costs will be much lower. CAC is currently modifying one of the prototype C-460s into a tanker configuration for evaluation.
