dmethvin Posted April 28, 2016 Share Posted April 28, 2016 Link to comment Share on other sites More sharing options...
Planetpapi Posted April 28, 2016 Share Posted April 28, 2016 It can mow your lawn while cutting your legs and arms. Very efficient design. Link to comment Share on other sites More sharing options...
ConjurMan Posted April 28, 2016 Share Posted April 28, 2016 I would call it .... The Amputator! you got that right! Link to comment Share on other sites More sharing options...
John Eucist Posted April 28, 2016 Share Posted April 28, 2016 I see it has a mesh on top of the blades but not on the bottom. Needs both sides to be safer. Link to comment Share on other sites More sharing options...
MetricUSA Posted April 28, 2016 Share Posted April 28, 2016 The guy is extremely crazy, need more cage, and needs tilt control to move forward... Link to comment Share on other sites More sharing options...
Hunka Hunka Burning Love Posted April 28, 2016 Share Posted April 28, 2016 Oh I hope small animals and children stay far away from that mobile blender....(do you see the swingset in the background?) I don't think there's any electronic balancing tech in that design at all? Link to comment Share on other sites More sharing options...
Jason McNeil Posted April 28, 2016 Share Posted April 28, 2016 Impressive stuff, to achieve the same lift with the ArcaBoard required 272HP! From what I recall, efficiency of lift is roughly related to the amputator blade size. http://www.theinertia.com/business-media/if-you-have-15000-you-can-buy-a-hoverboard-that-actually-flies/ Link to comment Share on other sites More sharing options...
dmethvin Posted April 28, 2016 Author Share Posted April 28, 2016 Seriously, if it wasn't so damn dangerous I would want one. I would not give my right arm to ride it though. Link to comment Share on other sites More sharing options...
Keith Posted April 28, 2016 Share Posted April 28, 2016 1 hour ago, Jason McNeil said: Impressive stuff, to achieve the same lift with the ArcaBoard required 272HP! From what I recall, efficiency of lift is roughly related to the amputator blade size. http://www.theinertia.com/business-media/if-you-have-15000-you-can-buy-a-hoverboard-that-actually-flies/ Quite so, when we use ducted fans to fly models (forward - not in the hover) exactly as used in your link we need around 200 Watts per pound of aircraft all up weight for good performance, a large propeller driven at relatively low RPM compared with the fan will give the same performance at 100 W/lb. It is all a balancing act as too big a propeller could have the tips getting close to the speed of sound and a rapid drop in efficiency, or having no ground clearance, but adding more smaller blades to absorb power means they run in each other's wake, also lowering efficiency. Competition rubber powered models have been known to have just one blade and a counterbalance to get the greatest duration. Even though helicopters do have very large slow turning blades, models still need 150W/lb for good performance, so hovering takes a fair bit more power, although in ground effect, considered to be within half the propeller diameter from the ground the power required is reduced quite a bit. Link to comment Share on other sites More sharing options...
Jag_Rip Posted May 3, 2016 Share Posted May 3, 2016 I fully expect him to be one of the future darwin award winners. Until then: entertain me, colin! Link to comment Share on other sites More sharing options...
playdad Posted May 6, 2016 Share Posted May 6, 2016 I would not ride that... it is scary. Link to comment Share on other sites More sharing options...
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