The Zephyr Stratocraft is the world’s most advanced fixed-wing HAPS
World-record-breaker,
world-record-keeper.
Zephyr is the world’s leading Stratocraft. Our current flight-time record is over 67 days in the stratosphere.
100% Solar Power
means Zephyr is environmentally sustainable
10+ Patents Filed
of cutting edge technology.
Multiple World Records
including the longest ever flight in the history of mankind.
20+ Years
and More
of research, design, prototyping and flying development activities.
67 Continous Days and Nights
of record-breaking stratospheric flight duration, achieved during a 2025 flight.
4,000+ Flying Hours Recorded
which is the longest duration for any unmanned HAPS, ever.