The European Space Agency ESA has been using a drone to test a spacecraft
“This drone hauled a model of the Juventas CubeSat high into the air, as a practical test of the antennas designed to perform the first radar sounding of the interior of an asteroid.”
https://www.esa.int/ESA_Multimedia/Images/2021/04/Drone_test_of_Hera_mission_s_asteroid_radar