#supersonic — Public Fediverse posts

Thursday, September 3, 2026

Who has the upper hand in Ukraine’s evolving drone war? . . . . . Russian specialists aiding Iran's development of supersonic cruise missiles, FT reports . . . . . Is the CIA's Moscow visit a sign of a coming Russian provocation in the Baltics? . . . . . and more

https://activitypub.writeworks.uk/2026/09/thursday-september-3-2026/

Friday, July 17, 2026

2 more Russian shadow fleet tankers hit by drones in Black Sea . . . . . On his way out, Fedorov moves to boost Ukraine's sky shield with EU loans . . . . . Thousands rally in Kyiv, other cities against Defense Minister Fedorov's dismissal, demand reappointment . . . . . Russian opposition politician Boris Nadezhdin banned from leaving country . . . . . and more

https://activitypub.writeworks.uk/2026/07/friday-july-17-2026/

NASA Testing Supersonic Rotors for Mars

NASA’s Ingenuity helicopter was the first aircraft humanity has flown on another planet, and engineers are looking to make the next generation of Martian helicopters bigger and more capable. That’s challenging in Mars‘ thin atmosphere, which is only 1% as dense as Earth’s. To get adequate lift, the rotors need to spin faster there.

During Ingenuity’s mission, the team intentionally designed the craft to keep the rotor tips below supersonic speeds. But for the next mission–SkyFall–they’re looking to push the rotorcraft further. In recent tests in a Mars simulator chamber, they successfully spun the new rotors to tip speeds as high as Mach 1.08, significantly increasing the loads SkyFall could carry. (Image and video credit: NASA/JPL-Caltech; via Ars Technica)

https://www.youtube.com/watch?v=aBJNtvAyt9g

#fluidDynamics #helicopter #Mars #physics #rotorcraft #science #supersonic