Nov. 22 (UPI) -- United Technologies has received a $762.5 million contract modification to deliver F135 propulsion systems for the Air Force and Marine Corps.
The new deal, announced Thursday by the Department of Defense, funds Lot 14 production and delivery of 48 F135-PW-100 propulsion systems for the Air Force and 10 F135-PW-600 propulsion systems for the Marine Corps.
The Pratt & Whitney F135 is a turbofan engine for the Lockheed Martin F-35 Lightning II, fifth generation single-engine stealth fighters used the Air Force, Marines and Navy plan to replace much of their fleets with in future years.
In October, Lockheed finalized a $34 billion deal with the Pentagon to deliver 478 F-35 fighter planes in production Lots 12, 13 and 14 at a cost below $80 million each. It's the largest contract in military history, and the lowest per-plane cost for the F-35 series yet.
That deal came after pressure from the Pentagon to lower the per-plane cost of the aircraft, which has also faced scrutiny for production and safety issues.
The new contract funds production of 48 F135-PW-100 engines for the US Air Force. The F135-PW-100 powers the Air Force's F-35A aircraft. Per the October deal, the Pentagon's expected cost per plane for the F-35A in Lot 14 in $77.9 million.
The deal also funds 10 F135-PW-600 engines for the Marine Corps' F-35B. Lot 14 production F-35Bs are projected to cost $101.3 million per plane.
The Pentagon has obligated fiscal 2020 aircraft procurement funds in the amount of $762 million -- it covers $521.5 million in purchases for the Air Force and $240.9 in Marine Corps.
The bulk of work will be performed in East Hartford, Connecticut, with some work taking place in Indianapolis and Bristol, England.