USAF conducted final flight test of F-15C Eagle Infrared Search and Track Legion Pod at Ex. Northern Edge 21

USAF conducted final flight test of F-15C Eagle Infrared Search and Track Legion Pod at Ex. Northern Edge 21

By Dario Leone
May 18 2021
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Northern Edge was a “graduation” test event for F-15C Eagle Infrared Search and Track Legion Pod, prior to fielding.

As Exercise Northern Edge 21 concludes, the 53rd Wing is returning home having achieved major test objectives for multiple weapons systems May 3-14, 2021.

In addition to F-15EX deep end testing, B-52 long-range kill chain milestones for hypersonic weapons, F-35s, MQ-9s, and F-15Es, all progressing their software, hardware, and tactics while at Northern Edge the 53d Wing also tested the Infrared Search and Track (IRST) on the F-15C.

As explained by 1st Lt Savanah Bray, 53rd Wing in the article For the Warfighter: Operational Test advances at NE21, during the exercise in fact, F-15C Eagle pilots completed operational flight testing on the Legion Pod, an IRST pod, in the rigorous environment of Alaska ranges. Northern Edge was a “graduation” test event for the pod, prior to fielding.

Maj. Aaron Osborne, F-15C pilot, 28th Test and Evaluation Squadron, explained that IRST allows pilots to have an “out-of-band” sensor to find what an electronically scanned radar cannot, particularly in the event of an electronic attack.’

Actually use of the Legion Pod and its IRST capabilities allows a pilot to have another sensor that integrates with the aircraft and builds a more complete picture of the battlespace. Because of its use of infrared, it provides the ability to identify, track and shoot enemy aircraft in a RADAR jamming environment to include stealth aircraft that a traditional radar may not see.

Boeing will soon award Legion pod full development and production contract to Lockheed Martin
The Legion pod is mounted on the centreline of the F-15C

“IRST pod is an added capability to the warfighter and is proving capable in the dense electronic attack threat environment of Northern Edge,” said Osborne. “While at Northern Edge, I’m using the pod not as a test pilot, but exactly as I would in the CAF or in operations. We’re checking the final boxes of the test plan here before the pod fields and using it with the latest operational flight program.”

In 2017, Legion Pod was selected as the Infrared Search and Track system for the U.S. Air Force’s F-15C fleet. Transportable between platforms, future expansion plans for Legion Pod include the F-15E, F-16, as well as unmanned systems. Flexible by design and production-ready, Legion Pod is set to serve as the next sensor system of choice for fixed-wing aircraft.

The pod is mounted on the centreline of the F-15 – mirroring what the Super Hornet Block III is doing – and the IRST21 long-wave infrared sensor being used is the same as the Navy version.

The Legion Pod hit two major milestones at Eglin AFB last year with the first missile shot of an AIM-9X using the Legion Pod on an F-15C Eagle and the first-ever flight of an operational F-16 Fighting Falcon with the Legion Pod on Jul. 8 and 13, 2020, respectively.

F-15C Print
This print is available in multiple sizes from AircraftProfilePrints.com – CLICK HERE TO GET YOURS. F-15C Eagle 144th Fighter Wing, 194th Fighter Squadron, CA/80-004 – California Air National Guard – Fresno ANG Base, CA – 2016

Photo credit: 1st Lt Savanah Bray / U.S. Air Force


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Dario Leone

Dario Leone

Dario Leone is an aviation, defense and military writer. He is the Founder and Editor of “The Aviation Geek Club” one of the world’s most read military aviation blogs. His writing has appeared in The National Interest and other news media. He has reported from Europe and flown Super Puma and Cougar helicopters with the Swiss Air Force.

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