4 ms·

Simple, add a variable pitch propeller. There are people that did it.

• photogrammetry 10y ago
  If you think adding variable pitch propellers to a multirotor is "simple," you're sorely mistaken :-)
  • baddox 10y ago
    There's not much point in debating what "simple" means, but it has certainly been done. There are collective pitch multirotors that are mass produced, marketed and sold to recreational customers, and quite stable. Granted, most of these still use electric motors. The point is for 3D flying, not the potential longevity of a combustion engine. The first commercially available one I know of (no longer produced): http://www.curtisyoungblood.com/legacy-product-support-curtis-youngblood/attachment/stingray-500/ http://www.curtisyoungblood.com/legacy-product-support-curti... A knock-off of the Stingray: http://www.hobbyking.com/hobbyking/store/__77122__Assault_Reaper_500_Collective_Pitch_3D_Quadcopter_Mode_2_Ready_to_Fly_EU_Warehouse_.html http://www.hobbyking.com/hobbyking/store/__77122__Assault_Re... A big exception: this thing is massive and works with nitro and 2-stroke engines: http://www.curtisyoungblood.com/legacy-product-support-curtis-youngblood/attachment/stingray-500/ http://www.curtisyoungblood.com/legacy-product-support-curti...
• deleted 10y ago
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• 6nf 10y ago
  The main reason multiprop electric drones are so cheap and popular is because you didn't need varipitch props any more. Petrol powered drones existed for decades but they were always more expensive and prone to failure than the new electric fixed prop multirotors.