Supply Chain & Manufacturing Challenges   North America   Military Aircraft Procurement   Aircraft Manufacturing (OEMs)   Defense Industry & Major Contractors  

RTX wins $3.81B modification to definitize F135 Lot 18; lots 18–19 valued at $6.6B

Pratt & Whitney received a $3.81 billion contract modification to definitize Lot 18 F135 propulsion-system production and support Lot 19 F‑35 production; the F135 powers all three F‑35 variants. The award raises the lots 18–19 total to $6.6 billion and follows >$1 billion in Pratt & Whitney production investments.

Discovered 2026-03-31T02:21:10.011256-07:00 | 2026-03-31T02:21:10.011256-07:00

Briefing

What Hype is tracking

  • Secures propulsion for continued F‑35 production: the modification definitizes Lot 18 and supports Lot 19, locking in engine supply as the Pentagon advances a major F‑35 procurement (lots 18–19 total $6.6B). [source:ec576941-18bd-4d5d-9c25-dd9d0081a985]

  • Signals industrial-capacity pressure and mitigation steps: the award follows Pratt & Whitney’s >$1B of recent investments and planned capacity expansions (including a forging-press addition) needed to meet accelerated F135 production rates. [source:2ebb2a8a-14e2-4f73-9115-549ab915fce7] [source:8ded03ff-4221-433e-a6f9-f6af5fb85453]

Reported By

Aviation A2Z mrobusinesstoday.com Air & Space Forces Mag interestingengineering.com defensehere.com defensearabia.com
Sources Tracked
20
First Seen
2026-03-31T02:21:10.011256-07:00
Latest Update
2026-04-03T15:38:05.560145-07:00
Coverage
Defense

Sources

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