YC F26 startup Kairox builds autonomous drones that both fly and swim

ycombinator · x · 2026-11-13

Y Combinator amplified Kairox Systems (YC F26), a startup building autonomous hybrid drones that can both fly and swim.

Its thesis: militaries still run separate platforms, operators, and logistics chains for cross-domain air-sea missions — aerial drones are fast but easy to detect, underwater drones are stealthy but slow to reach targets, so hybrid platforms are the next evolution of unmanned systems, based on interviews with Navy officers, SOF operators, and MIT researchers.

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