NASA Creates a Helicopter That Breaks the Sound Barrier

Flying a helicopter on Mars already sounds impossible. Flying one faster than sound sounds completely insane. Yet NASA engineers have successfully tested helicopter rotor blades at supersonic speeds under simulated Martian conditions. In a giant vacuum chamber, the blades reached Mach 1.08 while operating in an atmosphere similar to Mars - a world where the air is so thin that flight should barely be possible at all.

Credits:

JPL-20210323-TECHf-0001-Helicopter First Flight VF: by NASA Jet Propulsion Laboratory (JPL) https://images.nasa.gov/details/JPL-20210323-TECHf-0001-Helicopter%20First%20Flight%20VF
Perseverance_Rover_Ingenuity_54th_Flight: by NASA/JPL-Caltech/ASU/MSSS
https://science.nasa.gov/mission/mars-2020-perseverance/ingenuity-mars-helicopter/#Helicopter-Highlights
Testing Next-Generation Mars Helicopter Rotors: by NASA/JPL-Caltech https://science.nasa.gov/photojournal/testing-next-generation-mars-helicopter-rotors/
Russian Tu-144LL SST Flying Laboratory Takeoff at Zhukovsky Air Development Center: by NASA/IBP https://commons.wikimedia.org/wiki/File:Russian_Tu-144LL_SST_Flying_Laboratory_Takeoff_at_Zhukovsky_Air_Development_Center.jpg http://www.dfrc.nasa.gov/gallery/photo/TU-144LL/HTML/EC97-44203-3.html
PIA25213: by NASA/JPL-Caltech/ASU/MSSS https://images.nasa.gov/details/PIA25213
JPL-20230406-TECHf-0001-Ingenuity Flight Update Media Reel 1080: by NASA/JPL-Caltech; WATSON images: NASA/JPL-Caltech/MSSS; Mastcam-Z images: NASA/JPL-Caltech/ASU/MSSS
https://images.nasa.gov/details/JPL-20230406-TECHf-0001-Ingenuity%20Flight%20Update%20Media%20Reel%201080
PIA23158: by NASA/JPL-Caltech https://images.nasa.gov/details/PIA23158
JPL-20230403-Mars Report Ingenuity Updates April 2023_UHD: by NASA/JPL-Caltech https://images.nasa.gov/details/JPL-20230403-Mars%20Report%20Ingenuity%20Updates%20April%202023_UHD
Engineer Jaakko Karras inspects a next-generation Mars helicopter rotor blade prior: by NASA/JPL-Caltech https://www.jpl.nasa.gov/news/nasa-pushes-next-gen-mars-helicopter-rotor-blades-past-mach-1/
Inside the dark chamber of JPL’s 25-Foot Space Simulator: by NASA/JPL-Caltech https://www.jpl.nasa.gov/news/nasa-pushes-next-gen-mars-helicopter-rotor-blades-past-mach-1/
Engineers are unlocking new possibilities for low-altitude aerial exploration of Mars: by NASA/JPL-Caltech https://www.jpl.nasa.gov/news/nasa-pushes-next-gen-mars-helicopter-rotor-blades-past-mach-1/
NASA’s Ingenuity Mars Helicopter does a slow spin test of its blades: by NASA/JPL-Caltech https://www.jpl.nasa.gov/news/nasa-pushes-next-gen-mars-helicopter-rotor-blades-past-mach-1/


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