Gaza, I didn't mention a new system just replacement handsets (new) for the exsisting one. There are two systems in use on the VS A340 (three on the B744) a/c and all use completely different handsets.
Wycombe, the C2's (or Pan Am's as we used to call them) had the projectors stripped out due to the lack of movies available on the old style cartridge system, not just the fact that they are for military use. The watchman option, although simple, must also be very expensive!!!