RTX's Pratt & Whitney awarded $6.6 billion F135 production contract to definitize lots 18-19

Rhea-AI Summary

Pratt & Whitney (NYSE: RTX) received a $6.6 billion award to definitize F135 engine production for lots 18-19, including a $3.8 billion modification for lot 18.

The contract covers full-rate production engines, initial spares, modules, engineering, program oversight and production support; Pratt & Whitney says it has invested over $1 billion in capacity and raised F135 production rates by 20%.

The program supports >66,000 jobs across 47 states and generated more than $9 billion in U.S. economic impact in 2025, with over 1,400 production engines delivered.

Positive

• $6.6B total contract awarded for F135 lots 18-19
• $3.8B modification definitizes lot 18 production
• Committed >$1B in production capacity investments (past five years)
• F135 production rate increased by 20%

Negative

• None.

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Company investing heavily to speed production and meet growing global demand

EAST HARTFORD, Conn., March 31, 2026 /PRNewswire/ -- Pratt & Whitney, an RTX (NYSE: RTX) business, has been awarded a $3.8 billion contract modification for lots 18-19 of the F135 engine, which powers all three variants of the F-35 Lightning II.

This modification definitizes lot 18 F135 propulsion system production, as well as provides for the production of F135 propulsion systems in support of lot 19 F-35 aircraft production. The total value of the F135 lots 18-19 contract awarded to Pratt & Whitney is $6.6 billion.

"The F135 is the most advanced military engine in the world, delivering unmatched thrust, reliability and mission readiness for the United States and its allies," said Jill Albertelli, president of Military Engines for Pratt & Whitney. "Pratt & Whitney is investing heavily across our global production base and supply chain to increase production and accelerate engine delivery and sustainment to meet growing global demand for the F-35 program."

This contract includes full-rate production engines, initial spares, modules, engineering resources, program oversight and dedicated production support services.  It also ensures capacity, tooling and uninterrupted manufacturing and supply chain operations for both U.S. military services and international customers.

Pratt & Whitney is making significant investments to accelerate the speed at which engines are built and delivered, having committed more than $1 billion over the past five years to expand and modernize production capacity. As a result, the business has increased current F135 production rates by 20% over previous contract rates.

The F135 program supports over 66,000 jobs across 47 states and territories and generated more than $9 billion in economic impact domestically in 2025. Pratt & Whitney has delivered more than 1,400 production F135 engines for the F-35 program, which includes 20 allied nations worldwide.

About Pratt & Whitney

Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines and auxiliary power units. To learn more visit www.prattwhitney.com.

About RTX

With more than 180,000 global employees, we push the limits of technology and science to redefine how we connect and protect our world. With industry-leading capabilities, we advance aviation, engineer integrated defense systems for operational success, and develop next-generation technology solutions and manufacturing to help global customers address their most critical challenges. The company, with 2025 sales of more than $88 billion, is headquartered in Arlington, Virginia.

For questions or to schedule an interview, please contact corporatepr@rtx.com

 

View original content:https://www.prnewswire.com/news-releases/rtxs-pratt--whitney-awarded-6-6-billion-f135-production-contract-to-definitize-lots-18-19--302729613.html

SOURCE RTX

FAQ

What did RTX announce about the F135 lots 18-19 contract on March 31, 2026?

RTX announced a $6.6 billion award covering F135 lots 18-19, including a $3.8 billion modification to definitize lot 18. According to the company, the contract funds engines, spares, modules, engineering and production support for U.S. and international customers.

How does the $3.8 billion modification affect RTX's F135 production for lot 18?

The $3.8 billion modification definitizes lot 18 F135 propulsion system production and supports lot 19 production planning. According to the company, it secures full-rate engines, initial spares, tooling and uninterrupted supply chain operations.

What investments has Pratt & Whitney made to speed F135 engine deliveries (RTX)?

Pratt & Whitney has committed more than $1 billion over five years to expand and modernize production capacity. According to the company, those investments helped increase current F135 production rates by 20% versus prior contract rates.

How many jobs and what economic impact does the F135 program (RTX) support in the U.S.?

The F135 program supports over 66,000 jobs across 47 states and territories and generated more than $9 billion in domestic economic impact in 2025. According to the company, this reflects the program's broad industrial footprint.

How many F135 engines has Pratt & Whitney delivered for the F-35 program so far (RTX)?

Pratt & Whitney has delivered more than 1,400 production F135 engines for the F-35 program to date. According to the company, deliveries support 20 allied nations and all three F-35 variants.