This is a new-platform from a Spanish start-up called Intelligenia Dynamics. It has four double co-axial motor/propellers and it is part of their upcoming product line of commercial uavs and services. You can read more at their website: http://www.iuavs.com/en/pages/index
(via robots.net / Robots Podcast news )
Comments
ARGghhhh nice machine ... but use piezo gyros!
In theory they should be more efficient because a single propeller creates a rotating moment on the fluid that is wasted energy. If you can create a counter-moment from another propeller below you can transform this to thrust. Of course in order for this to work you should design and size the airfoils very carefully. Having the same kind of props top and bottom is by definition inefficient.
@IKE, you would think so, but apparently that's not true. I've heard they are up to 40% less efficient.
arashi, looks like it
ed, looks awesome, bring it by next time youre in town.
Isn't the Hoover dam footage from Trappy?
Co-axial props should also be more efficient for a given thrust.
Ed
http://vimeo.com/30682403
I have been working with counter rotating coaxial motor props for over a year, they are very smooth and stable. I have almost completed my second project. Bench tests on my new one produces 10 lbs thrust on just one motor set.
It flies so well I am surprised it hasn't caught on. The biggest hastle is mounting the motors to the boom and the props are a little difficult, but worth it.
Ed