Terrafugia is out of date already!

http://blog.sfgate.com/techchron/2013/11/20/google-flying-cars-zee-aero/#18174101=3




Interesting,

Marc


It will go nowhere on battery power :) What would work is a diesel
electric locomotive type transmission.

IE: Wankel engine powered generator with electric motor powered
fans.

A bit too heavy probably.

Paul Lamar

A Spanish engineer, Carlos Matilla, and their company, propose a
similar, but less complex product, the 'Helikar', they claim having
learned from the mistakes by Moller and Urban Aeronautics, but don't
describe these 'mistakes' (link below is in Spanish language)

http://www.elmundo.es/cronica/2013/11/10/527e904a63fd3d393a8b4576.html



Hope you like it!. Salut

Jose Gros-Aymerich E-28033 Madrid, Spain



I think whoever dreamed this up should get a good book about
helicopters, Johnson's would be good, and look up the term "disc
loading"

Steve Brazil


Two ways to get low disk loading. Lots of small fans or one large
one. Add all of the disk areas. Multiple small fans work and in some
ways they are simpler. Especially electric driven as you can speed up
the aft fans to move forward. Also blade torque is canceled as the
fans on one side rotate in a different direction than the fans on the
other side. It looks strange but it is a very viable design except
for the weight of the motors, generator and ICE. The Wankel ICE, due
to the high power to weight ratio, would help greatly.

Paul Lamar

  Hello again: Google Books includes  'Ducted Fan Design' Vol 1,
 by F Marc de Piolenc and G E Wright jr, the link is in the bottom of the page
  about Alexander Lippisch in Wikipedia, Hope you like it.
   Salut
    Jose Gros-Aymerich
Madrid, Spain

G E Wright Jr. is on this list.

Paul Lamar

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