Fresh reporting from Project Convergence details overheating, battery and signal problems affecting selected systems. The July exercise was experimental, and no comprehensive Army scorecard has been released.
New reporting published by the Wall Street Journal on 10 October describes reliability problems observed during the US Army's Project Convergence Capstone 6 at Fort Irwin, California. The exercise itself ran from 20 to 29 July; the fresh development is the detailed on-site account, not a new Army trial this week.
The Journal reported that one Anduril drone landed after overheating and that pilots experienced signal loss behind terrain. It also observed pilots limiting flight windows and duration to conserve batteries, with some flights conducted manually rather than with full autonomy. These selected observations are not a test record covering every drone used at the event.
Army material describes PC-C6 as a ten-day experiment involving about 10,000 participants and more than 90 technologies, concepts and formations. Its central focus was the Next Generation Command and Control architecture, intended to connect data and decision-making across a large force. Drones were part of a much wider test rather than the exercise's only subject.
The Army acknowledged during the event that troops were operating in rugged terrain, high temperatures and other harsh conditions. Officials said the resulting data would inform acquisition decisions. That context does not erase equipment failures, but it matters: Project Convergence was an experimental evaluation intended to stress emerging systems, not a declaration that every capability was ready for routine operational use.
Axios reported that NGC2 improved shared battlefield visualisation, while soldiers faced connectivity and overheating problems. The Army requested nearly $4 billion for development and delivery.
The Journal also reported that one unit shortened mission-planning time using new data sharing. Anduril acknowledged overheating and said upgrades were being prioritised; Theiss UAV Solutions said its aircraft received mostly positive feedback.
Discovering heat, battery, communications and autonomy limits during a controlled exercise can be useful. The more important measure is whether those findings change designs, training, procurement milestones and expectations before systems are fielded at scale. A successful demonstration under ideal conditions would provide less evidence about resilience in demanding environments.
Important evidence remains unpublished: a system-by-system after-action report, comparative reliability data, the number of affected flights, acceptance thresholds and the acquisition decisions that followed. The available reporting supports a narrower conclusion: several high-profile technologies encountered practical constraints, while parts of the command network showed value. It does not justify a blanket verdict on every technology tested at PC-C6.
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DWN interpretation is identified in the text. This is not original field reporting or independent technical validation. Historical background retains its original dates; a later expansion date does not turn an old announcement into new news.