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PD Staff
08-02-2010, 01:27 PM
Kimball Livingston has gotten sucked into the DDWFTW vortex and offers a preview of an even more extensive article:

"Dead Down Wind Faster Than The Wind"

But why?



http://kimballlivingston.com/?p=3922


The Blackbird is a vehicle designed and built with the sole purpose of traveling directly downwind, faster than the wind, powered only by the wind, steady state. It has a tricycle configuration and a 17.5’ diameter propeller on the top of a set of pylons over the vehicle’s rear axle. The propeller is connected to the rear axle through a simple chain-drive transmission and ratchets. This configuration permits the wheels to turn the propeller via the fixed ratio transmission, while allowing the prop to freewheel during braking. The prop pitch can be controlled by the pilot “on the fly”. By design, such a configuration cannot be accelerated through the use of stored energy/momentum. The vehicle makes no use of any controls or actuators other than those operated directly by the pilot with human power.


http://www.nalsa.org/images/blackbirdbig.jpg


http://www.nalsa.org/images/blackbirdside500.jpg

hobot
08-10-2010, 02:34 PM
I'm new here....WTF is that thing?

Buzz Light Beer
08-10-2010, 04:15 PM
It's what happens when you far too much time and money on your hands, and and a desire to do something so inane and pointless that you are willing to spend weeks in the hot dusty desert to achieve it.

It's like Burning Man without all the chicks.