https://aviationweek.com/business-aviation/ge-catalyst-heads-altitude-testing-0
Flyability, a Swiss startup developing collision-tolerant drones for operation in confined spaces, has raised $11 million in a Series A financing round.
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https://www.aviationtoday.com/2025/10/01/beehive-plans-altitude-testing-of-frenzy-engine-for-uavs-in-october-flight-tests-in-early-26/
Oct 1, 2025 - Beehive Industries, a propulsion startup firm, said on Sept. 22 it’s ramping up testing of its Frenzy line of additively-manufactured engines, with plans to...
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https://clarktesting.com/service/mil-std-810-method-500-low-pressure-altitude/
May 29, 2025 - Clark Testing conducts MIL-STD-810 Method 500 low-pressure altitude testing to ensure equipment reliability under high-altitude conditions.
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