Aircraft program
Ultra-endurance air vehicle powered by variable-buoyancy propulsion
Supplier geography and market analysis for this program — shown free on sponsored programs, or with an Analytics subscription.
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The program’s dated history — milestones, contracts, supplier selections and facilities, each linked to its source. Log in to view.
Information on this page is compiled from a variety of published sources; links do not necessarily imply recommendation or confirmation by the airframe manufacturer.
Corrections go straight to the editorial team that maintains this directory.