asteroza + aviation + drive   4

(PDF) Implementation of Electrical Rim Driven Fan Technology to Small Unmanned Aircraft
Apparently rim drive electric fans are a little disappointing at this time for aviation purposes
rim  drive  electric  fan  propulsion  duct  ducted  RDF  general  aviation  UAV  drone  research 
october 2018 by asteroza
VTOL Dynamics
Appears to be working on a tilting rotor quadcopter (technical an octocopter since it uses a rotor above and below the motor), allegedly a hybrid base, with power supplied by some sort of engine/generator unit feeding to the four motors.
hybrid  electric  drive  tiltrotor  octocopter  quadcopter  helicopter  drone  UAV  aviation  research  technology  aircraft  VTOL  Delicious 
february 2014 by asteroza
Sagita - Home
Looks like a semi-hot cycle helicopter, but instead of a potentially more complicated tip jet drive, it appears to use dual contra rotating direct drive turbines to spin the rotors, exhausting into the inter-disk area of the rotor hub. That exhaust choice is a bit odd though, but it might increase local air velocity over the blades.
rotor  direct  helicopter  aerospace  cycle  technology  turbine  semihot  coaxial  aviation  drive  hot  VTOL  Delicious 
june 2013 by asteroza

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