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Based on what we've seen from their IRST tests on the generic model on the previous page and the drawings on the Northrop production designs for the F-23A and the NATF, and also the F-35, it seems to me the IRST would have been in a chin located "housing" under the nose just behind the radome as well. I suppose they could have gone for more coverage in azimuth by having one located in each wing root, sort of a small lerx with faceted windows. Like a stealthy version of what we saw on the nose of the YF-12A.I'll go through my ATF book again and see if they mention where the system was to be located, but I don't recall ever reading about where the system would be located on the airframe. I know the GD ATF submission had the RADAR system in the LERX's over the inlets, and the IRST in the nose.
Based on what we've seen from their IRST tests on the generic model on the previous page and the drawings on the Northrop production designs for the F-23A and the NATF, and also the F-35, it seems to me the IRST would have been in a chin located "housing" under the nose just behind the radome as well. I suppose they could have gone for more coverage in azimuth by having one located in each wing root, sort of a small lerx with faceted windows. Like a stealthy version of what we saw on the nose of the YF-12A.
I'll go through my ATF book again and see if they mention where the system was to be located, but I don't recall ever reading about where the system would be located on the airframe. I know the GD ATF submission had the RADAR system in the LERX's over the inlets, and the IRST in the nose.