Meet BARB, The Robot That’s A Glimpse At Future Jet Engine Assembly
Summary
Pratt & Whitney, a subsidiary of RTX, has introduced an advanced assembly robot called BARB (Bearing Automation Robotic Builder) at its jet engine manufacturing facility in Middletown, Connecticut, representing a $20 million investment in automation technology. The robot, which came online in early 2025 after extensive testing that began in late 2024, is specifically designed to handle the precision assembly of bearings on the commercial GTF 1100G engine, a task that traditionally required highly skilled human mechanics working through meticulously documented production steps. Integrating BARB into the existing manufacturing workflow presented significant challenges, including unexpected issues with its vision system struggling to recognize new, shiny parts after being calibrated on older components, highlighting the complexity of automating such exacting work. Despite these early hurdles, BARB has delivered impressive results, achieving an 80% reduction in assembly touch time and a near-perfect 100% yield rate in bearing sub-assembly production, with only one reported issue since entering serial production. This robotic automation initiative is running parallel to Pratt & Whitney's broader AI integration efforts, which include AI-assisted borescope inspection software being piloted on commercial GTF engines and the F135 engine that powers all variants of the F-35 Joint Strike Fighter.
Key Takeaways
- 1. BARB represents Pratt & Whitney's first significant step toward automation in jet engine assembly, backed by a $20 million investment, handling precision bearing assembly for the GTF 1100G commercial engine
- 2. Jet engine assembly automation is uniquely challenging due to strict error-prevention requirements, foreign object debris concerns, and the need for meticulous production record-keeping at every assembly stage
- 3. The robot required extensive testing and calibration before going live, including overcoming unexpected vision system failures when transitioning from worn test parts to shiny new production components
- 4. BARB has delivered an 80% reduction in assembly touch time and achieved near-perfect 100% yield rates, demonstrating clear efficiency and reliability advantages over traditional human assembly methods
- 5. Pratt & Whitney is simultaneously pursuing AI-driven inspection tools, with borescope analysis software already being piloted on both commercial engines and the military F135 engine powering the F-35 fighter jet