400th production V-22 Osprey tiltrotor aircraft delivered to AFSOC

Major nacelle redesign effort for Air Force Special Operations Command’s CV-22 Ospreys

By Dario Leone
Feb 6 2021
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The Naval Air Systems Command awarded Bell Boeing an $81 million contract to develop, design and install nacelle modification kits and install conversion area harnesses on the CV-22 Osprey.

The Naval Air Systems Command (NAVAIR) awarded Bell Boeing an $81 million contract to develop, design and install nacelle modification kits and install conversion area harnesses on the CV-22 Osprey, the Air Force Special Operations Command’s (AFSOC) variant of the tiltrotor aircraft.

“This complex effort will improve both the reliability and maintainability in one of the most critical areas on the aircraft,” said Col. Matthew Kelly, V-22 Joint Program Office (PMA-275) program manager, in the NAVAIR news release. “This contract implements the most comprehensive maintainability improvement since CV-22 fleet introduction 14 years ago; it will quickly pay readiness dividends for the fleet.”

The V-22 nacelles house the power and propulsion components of the aircraft and the conversion area includes complex wiring bundles routing from each nacelle, feeding power through various elements of the aircraft. Together, the nacelles and harnesses are crucial and complex elements, responsible for giving the V-22 its unique ability to fly vertically and horizontally.

“Approximately 60 percent of maintenance man hours are spent in the nacelles,” said Col. Brian Clifford, the PMA-275 CV-22 program manager. “By refining the design for maintainability in these areas, we will ultimately reduce repair time and improve readiness.”

The planned modifications were designed based on feedback from Air Force and Marine Corps maintainers to improve access to the nacelles.

“We wanted to make sure that the individuals actually doing the hard work, opening up the nacelles, having to replace wires and troubleshoot, reap the benefits of this program,” said MSgt Bryan Sohl, the CV-22 division superintendent.

Initial kit delivery and installs, covered in this contract, are scheduled for completion in late-2021 at Bell’s Amarillo Assembly Center in Amarillo, Texas. The Marine Corps and Navy are also looking to incorporate the nacelle and wiring improvements onto the MV-22 and CMV-22B variants.

“The team’s efforts to get this contract negotiated and awarded were exemplary; the results of this contract will have positive and significant impacts to the AFSOC CV-22 fleet,” said Clifford.

The CV-22 is the AFSOC variant of the U.S. Marine Corps MV-22 Osprey. It combines the vertical takeoff, hover, and vertical landing qualities of a helicopter with the long-range, fuel efficiency and speed characteristics of a turboprop aircraft. Those capabilities give this versatile, self-deployable aircraft the capability to conduct missions that would normally require both fixed-wing and rotary-wing aircraft.

MV-22 Osprey print
This print is available in multiple sizes from AircraftProfilePrints.com – CLICK HERE TO GET YOURS. MV-22B Osprey, VMM-163 “Ridge Runners”, YP00, 168011

Photo credit: 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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