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The first crewed fixed-wing flight on solid-state batteries
Claim
Test pilot Miguel Iturmendi flew the Helios Horizon, the first crewed fixed-wing aircraft on solid-state batteries, on cells reaching 410 Wh/kg, a 60% leap over its previous lithium-ion pack.
Reported metric: 410 Wh/kg, +60%
Reporting date: (not necessarily the event date)
Sources
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- Welcome to June 13, 2026 (theinnermostloop.substack.com)
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