Pratt & Whitney has completed the preliminary design review under the F135 Engine Core Upgrade (ECU) initiative, setting the stage for improved performance and durability.
The ECU will support the Lockheed Martin F-35’s eventual upgrade to the advanced Block 4 software standard, according to P&W.
The work saw P&W and the F-35 Joint Program Office evaluate design changes and propulsion technologies that will “restore full life” to the engine and allow the operation of next-generation weapons and sensors.
“Pratt & Whitney is upgrading the F135 engine with technology from multiple development programmes to deliver increased capability and performance for the warfighter,” says Chris Johnson, vice-president of the company’s F135 programme.
“Upgrading the F-35’s propulsion system to ECU is a critical step toward ensuring the F-35 remains the world’s premier air dominance fighter.”
The F135 powers all three variants of the F-35, and over 1,200 units have been produced. In order to provide sufficient power for F-35 mission systems, such as computers and sensors, the existing F135 is operating outside design specifications, which affects durability.
