Overdrive,
That's the only picture that I found on the Internet.
CEFOSKEY,
Surprised you didn't quote this little snippet:
"...So that led to the need for double-ended airfoils close to the hub as part of our scheme for reducing drag due to the rotor hub"
The use of a special 'reverse taper' blade should be interesting; particularly since it may concentrate most of the induced velocity near the outer periphery of the two actuator disks.
IMFU's subliminal April Fools day message may be the critical one.
He knows that Eagle Aviation Technologies made these blades.
He also knows that it's CEO, Emitt Wallace, brought the world the
coaxial Air Scooter.
He also knows that the Air Scooter cannot autorotate.
What is IMFU really saying?