bit Electric Powered Gyroplane?

Putting an electric DC motor in a gyroplane is really not difficult. Even with the high cost of a good controller, the fuel savings would pay for the system. One thing is for sure, great radial engines and redesigned automobile engines aren't going to disappear because some gyroplane owners are putting dc motors in their gyros. Electric motors would not have the range or power of the 'popular three' for gyroplanes.
However electric motors would fill a nitch in the low cost, low use market place for gyroplanes, allowing even more enthusiasts to enter the sport. Once weaned on the electrics, they would move on to the cross country gyroplanes.
bit This is the way with automobiles and will carry over to gyroplanes. Not in regards to automotive power choices, but in more affordable autos to better performance vehicles.

This is not new technology. Edison had the system working in 1910.

As the automotive world has managed to keep electric vehicles "at bay" for so many years, not so with gyroplanes as they are in the homebuilt market and far too low in numbers to matter to big business.

The problem with electric powered vehicles is they're just too good. Maintenance is very low and parts are easy to come by and repairs are hardly ever needed. The gasoline engine could be described as the 'helicopter' version of the gyroplane. A helicopter is basically 40,000 parts flying in formation. The gyroplane, with an electric motor would only be a few hundred parts flying very economically and quietly. And that's the part I like: quietly.

It might be possible to get away with it, before anyone really took notice. But there are many businesses that depend on providing all those parts and lubricants.
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"We have the technology". Do we have the will?
Electric powered gyroplanes further simplify the complicated and expensive helicopter, with the safety of autorotation, CFI, ADS-B and Seelevels. Commuting by gyroplane is ever so near?

Regalpony illustration Spray-On Solar Paint has been developed in Canada, at the University of Toronto, in 2004,
by Prof. Ted Sargent and a student.
SOS-P is a welcome break through in lowering the cost of solar energy. Spray painted on to a gyroplane skin, it has the potential to recharge electric engine batteries "in the field".

It works by converting the unseen infrared spectrum of the sun's energy. This area of energy is thought to be larger than the energy from the "visible" area of the spectrum currently being converted by solar panels. (Which only use 6 percent of the sun's energy striking the earth.)

There are no commercial companies at present working on this system. However in Nov. 2007, Chemical Engineer, Cyrus Wadia announced from Berkeley, California that he too was experimenting with the solar paint discovery.

Update: June 2013: there is no new information about solar paint to be found.

                        Gyroplane The CBC news article announcing the break through for paint on solar collectior, has been removed from the www, and been replaced with another article.