Anyone recognize this homebuilt twin-rotor helo?

Discussion in 'Rotorcraft' started by GlassVampire, Feb 12, 2015.

Help Support HomeBuiltAirplanes Forum by donating:

  1. Feb 12, 2015 #1

    GlassVampire

    GlassVampire

    GlassVampire

    Well-Known Member

    Joined:
    May 14, 2009
    Messages:
    148
    Likes Received:
    4
    Location:
    Pecatonica, IL
    Someone posted this on a FB page I'm a member of and we are trying to find more info about it. All we have is this pic, though supposedly it was built by someone in Africa (go figure) and has been flown (I"m somewhat dubious on that last feat). The rotors are articulated and both are powered (so I've been told). Anyone else seen it?

    :whistle:

    10005830_1607975866090898_7882672451288570641_o.jpg
     
  2. Feb 13, 2015 #2

    Flyinpine

    Flyinpine

    Flyinpine

    Well-Known Member

    Joined:
    Nov 15, 2013
    Messages:
    54
    Likes Received:
    7
    Location:
    Effingham, NH
    Noooo..... I don't believe it could fly. It would be cool to see it run, though! It would be a spectacular fail.
     
  3. Feb 13, 2015 #3

    rbrochey

    rbrochey

    rbrochey

    Well-Known Member

    Joined:
    Oct 17, 2010
    Messages:
    1,503
    Likes Received:
    610
    Location:
    Gallup, New Mexico USA
    I like it... put some floats on it and only fly above a lake... wait I know... we could all pitch in about 10K each to develop it... then market it exclusively to exiled Nigerian Kings... ;)
     
    Blue Chips likes this.
  4. Feb 13, 2015 #4

    TFF

    TFF

    TFF

    Well-Known Member

    Joined:
    Apr 28, 2010
    Messages:
    11,523
    Likes Received:
    3,225
    Location:
    Memphis, TN
    The stick looks like it is screwed into the instrument panel, and the CG is so nose heavy it would roll over if it could lift up. Just a fancy version that all of us dreamed we could build in the garage when we were 10.
     
  5. Feb 13, 2015 #5

    BJC

    BJC

    BJC

    Well-Known Member

    Joined:
    Oct 7, 2013
    Messages:
    9,486
    Likes Received:
    6,241
    Location:
    97FL, Florida, USA
    Looks like a Moller Air Car Mark 1.


    BJC
     
  6. Feb 13, 2015 #6

    GlassVampire

    GlassVampire

    GlassVampire

    Well-Known Member

    Joined:
    May 14, 2009
    Messages:
    148
    Likes Received:
    4
    Location:
    Pecatonica, IL
    Awww come on guys, haven't you ever had a dream? :lick: You have to hand it to the builder though, they tried- they just need some direction and aerodynamics/engineering lessons. Turn this into a learning experience- what do you think about using twin non coaxial rotors to cancel out torque?
    Would two smaller diameter props (as shown in this one) weigh less than one larger one up top(as in the case of most gyrocoptors)? What would be the advantages and disadvantages of going this route as opposed to the standard one rotor route?
     
  7. Feb 13, 2015 #7

    TFF

    TFF

    TFF

    Well-Known Member

    Joined:
    Apr 28, 2010
    Messages:
    11,523
    Likes Received:
    3,225
    Location:
    Memphis, TN
    Weight in blades is what makes autorotations not dangerous. Light blades dont retain inertia well. Also having blades at close to neck hight is not my idea of fun; although if one came off it would not matter if you died from decapitation or impact. driveshaft breakage would be a constant scare. And if you actually got it flying ,you can put one set of blades in a settling with power situation by flying laterally. It might be good cutting overhanging limbs on my driveway. Dreams are fun, but helicopters and way substandard engineering just makes Darwin awards.
     
  8. Feb 13, 2015 #8

    Riggerrob

    Riggerrob

    Riggerrob

    Well-Known Member

    Joined:
    Sep 9, 2014
    Messages:
    1,150
    Likes Received:
    316
    Location:
    Canada
    Where are the swash plates?
     
  9. Feb 13, 2015 #9

    JamesG

    JamesG

    JamesG

    Well-Known Member

    Joined:
    Feb 10, 2011
    Messages:
    2,408
    Likes Received:
    754
    Location:
    Columbus, GA and Albuquerque, NM
    Fitted for, not with. ;)
     

Share This Page

arrow_white