4 ms·

They mentioned it being quiet, Rotaries are far from quiet.

• aidenn0 6y ago
  If it's compact enough to compete with 2-strokes, it's likely way quieter than that. In theory a rotary would be quieter than a similarly powerful spoark-ignited engine due to reduced vibrations, but I don't suspect it's a huge difference.
• dmix 6y ago
  Know what's really quiet? High loitering kamikazi drone and gliding that last while: ie: https://www.youtube.com/watch?v=zzzOH5fBAqw https://www.youtube.com/watch?v=zzzOH5fBAqw
  • fastball 6y ago
    > We passionately create technologies of tomorrow because our reality is your future Not sure this is the strapline I'd choose for my weapons manufacturing company.
    • sawjet 6y ago
      Why not?
      • pxndx 6y ago
        If the future is autonomous drones killing kids in Pakistan, I don't want to go there.
• ogre_codes 6y ago
  You can hear it in the video and it is pretty quiet. They've also developed a system where you can shut off the motor and cruise on battery power for short bursts for stealth type applications.
• mleonhard 6y ago
  It weighs 1/5th of comparable engines. Some of that saved weight can be put into sound proofing and a muffler.