Military aircraft design and component reuse

What is rarely, or never discussed about the military aircraft industry is the salvage and recycling efforts that go on. An example of this can be a keen eye for detail when comparing the F-4 fuselage to the F-100. The F-100 was a liability do to it's unknown capabilities. Had the F-100 been fitted with computerized fly-by-wire technology,it would never have been replaced.

Note that the intakes on the F-4 are very similar to the front intake on the F-100. This was do to the fact that so many F-100s were lost,the military and contractors cannibilized remaining spare parts as well as existing F-100s to finalize the F-4's design to be of a profit maximising nature. Proof of the nature of the aircraft industry's ability to conquer mission requirements without massive redesign is the new A-10C that is radically intigrated into wireless and satellite networks to overcome it's lack of an onboard radar detection system.

The commercial space industry is recycling as many surplus, decommissioned fighter aircraft as possible for testing and redesign for space flight.