Ron,s Back to the future car/drone

I am building a Back to the Future car/drone that has EMFs as the hubs of the wheels .

I saw Ed Kirk's  Scarab Quad video and figured that I could build the fans into the wheels just like  in the movies.  

I already have a prototype wheel/fan unit that transforms from a wheel with a rotating tire, to a horizontal turbo fan.  I have the drive system figured out as well.  In order to cut down weight I figure that the rear fans  would control the  forward and turning by speed control rather than by changing the pitch with servos.

I am planning on using 4 - new model 70mm Emfs from Hobby-King, with 7 blade fans and chromed to make good looking hubcaps for the wheels  They extend to an  angle approx 15 deg.off horizontal outwards.

I have no problems designing and manufacturing the physical car but my savvy of the electronics is minimal, just what I read on line.

Has anyone ever built one of these models ?  I have designed it to drive like a car , stop and transforme

into a drone and then fly away , return to earth and transform back to a car.  I am not planning for it to be a race car or do any loop D loops while it is in drone mode.  Just simple moves.

I could use some good advice to  avoid some of those inevadible tragedies.

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  • Hi Ron,

    Thanks for the interest in my EDF quadcopter, my first recommendation is to build a standard quadcopter before even trying an EDF setup.  Start with a simple controller like MultiWii or KK, there are some very nice 250 to 270 frame kits available using 5 and 6 inch props and the latest motors are very impressive.  Take a look at MultiWiiCopter, he has good kits for someone who can build, program and learn the basics.

     http://www.multiwiicopter.com/products/scarab-knife-270-red-air looks like a nice start.

     

    I designed the mechanics and rotating boom he uses in his tricopters and Avatar.

      Scarab Avatar FPV Carbon - electronica Delrin™ - twin servo Tricopter

    Ducted fans multicopters fly great although flight time is short, I was getting up to 10 minutes.  There have been great improvements in electronic speed controllers, at least 6 cell batteries are a must, when I was experimenting I had to use at least 80 amp ESC's for even a 65 mm ducted fan, real challenge.  The batteries have also improved.  I haven't seen where anyone has had any success with multicopters and ducted fans.  I have had the best results with the High Torque ducted fans from Hobby King at least for the price.  Listed specs are useless, I also found the numbers from my dyno stand didn't work in actual flight.  EDF's really suck up the current in flight but there is plenty of power.

    Ed

    P3154802.JPG

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