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F-35 Factory Robot Cuts Bolt-Installation Work from Hours to Minutes

A Northrop Grumman co-bot assists technicians installing bolts on the F-35’s CNI avionics module, cutting the reported task from hours to a few minutes.
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A Northrop Grumman collaborative robot, or “co-bot,” helps technicians install bolts that secure the front housing of the F-35’s Communications, Navigation and Identification (CNI) avionics module. Northrop Grumman reporting dated September 30 and October 2, 2026 says the task that once took hours now takes a few minutes. The robot assists the assembly team; it is not described as replacing it.

What the F-35 co-bot does

It helps attach the CNI module’s front housing

The reported job is specific: installing bolts to attach the front housing area of the CNI module, an avionics unit used on the F-35. Northrop Grumman manufacturing manager Lavell Catlin said the co-bot “assists technicians to precisely install bolts” for that assembly. The reporting does not describe the robot building the whole module or taking over the full assembly process.

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The reported time saving is for this task

Northrop Grumman reports that bolt installation which previously took hours now takes a few minutes. The reports do not give an exact before-and-after cycle time, explain how the task time was measured, or state how many modules are completed in a shift. The claim therefore describes a substantial reduction in the time for this particular operation, not a quantified change in total F-35 build time.

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Technicians remain part of the assembly

The co-bot is presented as a tool used alongside technicians, not a lights-out system operating without an assembly team. Northrop Grumman says employees were shifted to other key manufacturing efforts after the task was automated. That indicates a reassignment of work, but the company’s reports do not quantify how many employees changed roles or describe any net workforce change.

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How this fits into the wider F-35 factory

The bolt-installation system is one targeted improvement within a larger human-and-machine production setup. Lockheed Martin describes its advanced manufacturing approach as combining robotics, artificial intelligence and augmented reality to improve production speed and quality. Those are broad program-level aims; they are not published performance measurements for this specific co-bot.

Other F-35 automation examples

Example What is automated Reported detail
Northrop Grumman CNI-module co-bot Assists technicians with bolts for the module’s front housing Northrop Grumman reports the task fell from hours to a few minutes in reports dated September 30 and October 2, 2026. Exact cycle times and plant location are not stated.
F-35 drilling, as described by Defense.info Automated drilling, including a metrology-assisted Northrop Grumman robot for narrow inlets A 2018 Defense.info account citing an F-35 digital-thread presentation says automation drills about 20% of total holes and is about four times faster than manual drilling.
Forward-fuselage handling and skin installation, Fastems case study A load, unload and skin-installation station Fastems reports labor fell from 132 hours to 98 hours per forward-fuselage unit, a 34-hour or 26% reduction. The case study’s publication date is not stated.
Fort Worth F-35 assembly line, PBS documentary page A production line combining people and robots, including robots for fastener installation and coating PBS describes 300 workstations, 50 robots and 4,000 humans. The documentary page’s date is not stated.

The Fastems figures concern forward-fuselage work, not the CNI-module bolt operation. They should not be combined with Northrop Grumman’s hours-to-minutes claim as if they measured the same task or line. Fastems also quotes forward-fuselage lead specialist Brian Sykes describing the team as working “hand in hand with the automation system” to reduce time, increase accuracy and improve safety.

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Production context

The U.S. Government Accountability Office says the F-35 program achieved full-rate production in March 2024. The CNI co-bot is therefore best understood as a targeted manufacturing improvement within an established production program, rather than evidence that the aircraft’s overall production system has become fully automated.

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What has not been disclosed

The public reports do not identify the Northrop Grumman plant where the co-bot is installed or the robot’s manufacturer and model. They also do not report its purchase price, monthly production gain, change in defect rates, reduction in safety incidents or formal return on investment. Without those details, the reported time saving cannot be converted into a reliable estimate of cost savings or added aircraft output.

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