Siemens' 110 lb world-record electric aircraft motor produce 348 hp at 2,500 RPM

wrote:
On Thursday, November 19, 2015 at 5:31:04 PM UTC-5, wrote:
wrote:
The concept wherein an "antennae" actually receives the directed
energy while in flight, and recharges your battery bank.


"It remains to be seen exactly what the specifications and consumer reception for Ossia and uBeam's technology will be. Nonetheless, the need for wireless power is real across a variety of applications. From simple consumer cell phones to electric vehicles, wireless power would fill a real need. If power could be transmitted long distances wirelessly, it would completely change "range anxiety" which has held back the EV market."

http://oilprice.com/Energy/Energy-Ge...ss-Energy.html

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Unfortunately the laws of physics says this is highly inefficient.

The efficiency is of minor importance when doing things like charge a
cell phone with takes milliwatts, but becomes totally impractical at
the megawatt level it would take to power even a small vehicle.

In a weak coupling at resonance, magnetic resonance couplings can transfer energy with high efficiency. The specification results at high power are proposed. In this paper, the feasibility of wireless power transfer with large air gaps and high efficiency by small sized antennas that can be equipped on the bottom of EVs is proposed.

http://ieeexplore.ieee.org/xpl/login...er% 3D5289747


Non sequitur.

FYI there was a pilot project to test magnetic resonance couplings for
vehicle power on roadways; too expensive to be practical.


--
Jim Pennino