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Old 06-25-2021, 02:32 PM   #1 (permalink)
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World's fastest EV motorcycle

White Motorcycle Concepts WMC has the most unique aerodynamic solution to break the world land speed record for an electric semi-streamlined motorcycle. Designed to reach 250+ mph/402+ kmh , because of a 69% reduction in drag in a typical faired-body motorcycle design.
Top speeds are always about aerodynamic drag, always needing more power needed to overcome that wall. WMC 250 EV bodywork has been laser-scanned and designed around a leather-cladded rider in an extreme racing crouch. The rider is straddling on top of a carbon fiber Venturi tunnel, running throughout the whole length of the motorcycle. Their wind tunnel sculpting and tuning, punches the air with a drag coefficient of 0.118! All of the suspension, electric motors and batteries are jammed under the tunnel and in between the wheelbase. Front wheel is powered by two 20 kW motors on each side & hydraulic hub-steered and the rear wheel is chain-driven by two 30 kW electric motors. The battery is 15 kWh pack because it also has two-wheeled regenerative braking. Their record attempt will be in the Bolivian salt flats in 2022.

They have patented their 'V-Air' Big-Hole motorcycle aero technology for street use!



Last edited by botsapper; 06-25-2021 at 02:39 PM..
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Old 06-25-2021, 02:49 PM   #2 (permalink)
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rider's streamlined head

From one view to another I noticed a difference in the gap behind the rider's helmet and sewn-on jacket head fairing.
It also appears that, the rider has no visibility when the head is tucked in for lowest drag.
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Old 06-25-2021, 04:17 PM   #3 (permalink)
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...a 69% reduction in drag in a typical faired-body motorcycle design
That's really interesting. People ask if you could duct stagnation point air the length of a car. This shows the scale of the issue.

"Never trust an actor with a gun"
Abraham Lincoln (probably)

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Old 06-26-2021, 12:25 PM   #4 (permalink)
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TDi - '04 VW Golf
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Thanks for sharing this botsapper. I was a pretty hard core motorcycle commuter many years ago. I noticed the unique foot position and realized that being an electric bike removes the need for foot controls. Throttle and both brakes could be done on the handlebars like a scooter.
60 mpg hwy highest, 50+mpg lifetime
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Originally Posted by freebeard View Post
The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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Old 06-26-2021, 01:22 PM   #5 (permalink)
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Black and Green - '98 Honda Civic DX Coupe
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Thanks, Amazing. EV West has a couple 230+ mph LSR records for their electraliner lakester body (close to a streamlined form but not quite. This is the future. Love the Venturi design!
See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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Old 06-27-2021, 10:16 PM   #6 (permalink)
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There seems be more fine-tuning opportunities on the rider suit smoothness integrating to a soft conformal 'speedster hump' at the rider's tail. Anyway, removing the direct mechanical connections and using hydraulics is a simple yet elegant solution - 'Riding the Venturi' for street use!

Luigi Stipa had Caproni build him a flying Venturi tube. Everyone laughed by his studies but it influenced later turbofan jet engine designs.

Last edited by botsapper; 06-27-2021 at 10:28 PM..
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