More Capable Prismatic HAPS Is Ready For Stratospheric Flights

Prismatic HAPS platform

The PHASA-35 Block 10, pictured in New Mexico in October, will be superseded by the more capable Block 20, which Prismatic hopes will be able to perform multiday or multiweek flights.

Credit: Prismatic
Prismatic, the BAE Systems-owned developer of solar-powered high-altitude pseudo-satellites, is gearing up for multiday flights with a new version of its PHASA-35 uncrewed aircraft system. With two daylong stratospheric flights under its belt—the first in June 2023 and another in October—the Alton...
Tony Osborne

Based in London, Tony covers European defense programs. Prior to joining Aviation Week in November 2012, Tony was at Shephard Media Group where he was deputy editor for Rotorhub and Defence Helicopter magazines.

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