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Someone got TESTBED with some token or other…

Tempest testbed aircraft 'Excalibur' moves forward

Going Very High, Very Fast: Up in the Air With GE's 747 Flying Test Bed Engineers - The GE Aerospace Blog

Boeing 757 F-22 Flying Test Bed : r/WeirdWings

In first, Airbus A310 tanker flight autonomously guides DT-25 drones into mock refueling position - Breaking Defense

Honeywell to test GX on 757 testbed by year-end - Runway GirlRunway Girl

DC Designs F-14 B Grumman testbed for Microsoft Flight Simulator

DC Designs F-14 B Grumman testbed for Microsoft Flight Simulator

Testbed conguration: distributed scenario with just two XCON islands

Sustainability, Free Full-Text

How under-used space and infrastructure can become testbeds for new cities

Going Very High, Very Fast: Up in the Air With GE's 747 Flying Test Bed Engineers

ZeroAvia Flight Testing Hydrogen-Electric Powerplant - ZeroAvia