Reprogramming ability The CIP modules have the ability to emulate any
of the electronic functions through automatic reprogramming. For example,
if the CIP module that is acting as radio dies, one of the other modules
will automatically reload the radio program and take over the radio function.
This approach to avionics makes the equipment extremely tolerant to combat
damage as well as flexible from a design upgrade point of view. The aircraft's
avionics architecture remains flexible to accept future upgrades without
having to design and retrofit new hardware to the fighter.
Expandability There are two CIPs in each F-22, with 66 module slots per
CIP. They have identical backplanes and all of the F-22's processing requirements
can be handled by only seven different types of processors. Currently,
19 of 66 slots in CIP 1 and 22 of 66 slots in CIP are open and available
for expansion. Each module is limited by design to only 75 percent of
its capability, so the F-22 has 30 percent growth capability with no change
to the existing equipment. There is space, power and cooling provisions
in the aircraft now for a third CIP, so the requirement for a 200 percent
avionics growth capability in the F-22 can be easily met. There is a coordinated
plan for technology growth that will help keep the CIP at state-of-the-art
levels. As electronics continue to get smaller and more powerful, it is
conceivable that there could be 300 percent increase in avionics capability.
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