LE BOURGET, France — As Lockheed Martin and the Pentagon attempt over the next year or so to assemble a three-year block buy of 400-500 F-35 Joint Strike Fighters, potential customers will be looking for firm definition behind the much-redefined Block 4 upgrade process, which will lay out all the capabilities that the F-35 will have between now and 2027.
This long-range planning is essential for the F-35, because the program is large and weapon and system integration issues are unique. From the very start of the project, it has been a given that all aircraft in the worldwide fleet will be upgraded concurrently, so as to avoid having a multiplicity of configurations.
This one-size-fits-all approach will in theory be the result of consensus among the customer community, but in practice will be dominated by the U.S., which will be signing the biggest single check. It presents a dilemma: how can you put as many upgrades and improvements on the schedule as possible to meet today’s national desires, while leaving capacity to change plans as new technologies and threats emerge?
Another delicate balance concerns the timing of improvements, such as electro-optical targeting, including hyperspectral systems that fuse midwave infrared (IR), shortwave IR and color video to give the pilot the best available picture. All of this has appeared since the F-35 was designed, so its current midwave-IR-only electro-optical targeting system (EOTS) looks a little dated, and will be even more so when the fighter is ready for export customers.
This issue has been recognized, and an Advanced EOTS is being designed with sharper, multi-spectral sensors and new processors. It should cut into production in Block 4, and according to Lockheed Martin is a top priority for many users. But this does not necessarily help to sell a lot of Block 3 aircraft: if Block 4 is going to include such a significant improvement, why not stretch out the lives of your existing fighters and delay F-35 deliveries?
Via: Aviation Week
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