![F-15A Flight Research Facility](https://www.nasa.gov/wp-content/uploads/2023/03/305936main_ECN-9810_full.jpg)
F-15A Flight Research Facility
Close up of the 10-degree cone attached to the nose of the F-15A. The aircraft record in-flight data, while an identical cone was also tested in wind tunnels.
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https://www.nasa.gov/image-detail/f-15a-flight-research-facility/
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