Military Aviation

USAF could replace its fleet of F-15E fighter bombers with F-15EXs expanding the new program to over 400 aircraft

Buying the F-15EX will save some $3 billion in military construction and support costs versus buying more advanced F-35s, the service claims.

The US Air Force (USAF) may replace its fleet of F-15E fighter bombers with F-15EXs, which could expand the new program to over 400 aircraft, according to service documents justifying the sole-source contract to Boeing. Moreover, buying the F-15EX will save some $3 billion in military construction and support costs versus buying more advanced F-35s, the service claims.

According to Air Force Magazine, the revelations and assertions were contained in an F-15EX Justification and Approval (J&A) document, which was dated March 2018 but not released until mid-July, to coincide with the sole-source award to Boeing of the first F-15EX contract. If all options are exercised, the program, as it’s currently structured, could be worth up to $22.9 billion.

Although the “most probable quantity” would be 144 F-15Exs, the heavily redacted document notes that the contract for Boeing posits a “rough order of magnitude” purchase of 200 airplanes. However, it also notes that while the program is “initially” intended to refresh the aging F-15C/D, a decision to similarly replace the F-15E Strike Eagle fleet with the EX “has not been made, but remains an option.”

A USAF spokesman said the Air Force’s position on the F-15E hasn’t changed.

This print is available in multiple sizes from AircraftProfilePrints.com – CLICK HERE TO GET YOURS. F-15E Strike Eagle 366th Fighter Wing, 391st Fighter Squadron, MO/90-0249 – Mountain Home AFB, ID – 2008

“That decision has not been made,” the spokesman said. “Air Force leadership will determine that. The F-15E will continue to perform its mission for the foreseeable future.” However, he was not able to say if the Air Force is conducting an analysis of alternatives regarding replacement of the F-15E fleet.

The Air Force fields about 234 F-15C/D air superiority fighters, and 218 F-15Es strike aircraft that retain air-to-air combat capability. Boeing recently described the F-15EX as a “multirole” aircraft. The service’s previous statements that it is seeking up to 200 F-15EX to refresh the F-15C/D fleet indicates it is not planning to replace the Eagle on a one-for-one basis.

The most significant difference between the F-15EX and legacy F-15s lies in its Open Mission Systems (OMS) architecture. The OMS architecture will enable the rapid insertion of the latest aircraft technologies. The F-15EX will also have fly-by-wire flight controls, a new electronic warfare system, advanced cockpit systems, and the latest mission systems and software capabilities available for legacy F-15s.

Pilots and mechanics currently operating the F-15 anticipate transitioning to the F-15EX in a matter of days as opposed to years, as Gen. Mike Holmes, commander of Air Combat Command, explains: “When delivered, we expect bases currently operating the F-15 to transition to the new EX platform in a matter of months versus years.”

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Photo credit: Boeing

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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