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A Wedding in the Bahamas
Do you envision your wedding in a tropical paradise? Perhaps you see yourself exchanging vows on the warm sand beside an aquamarine sea or sailing off into the sunset with ten of your dearest friends to enjoy a wedding feast and the spectacular...
Camera Cell Phones -- More uses than you could have imagined
I was shopping in the large superstore with my five-year-old daughter, perfectly unaware that in the next few minutes I would be living through every parent’s nightmare – in an instant my child would disappear from my side. She had been looking...
Combining ATVs and Tourism
Many of you who are new to the sport of ATV riding where exposed to it from a tourist standpoint. The business of renting all terrain vehicles out as a tourist attraction is a growing trend all around the world. If you are interested in testing...
Discover the Llyn Peninsula
Stretching from the peak of Snowdon to Bardsey Island (or Ynys Enlli - the Island of the Tides), the Llyn Peninsula is a unique and beautiful part of North Wales, renown for its natural charm and mild climate. So spectacular is its coastline...
Does It Take "Soft" Skills to Win the BT Global Challenge?
Have you heard of the BT Global Challenge? It’s known as the world’s toughest yacht race because it’s sailed “the wrong way” ‘round the world—against prevailing winds and currents. All kinds of waves and weather conditions are likely to be...
 
Electric RC Airplanes

In the recent past, almost all rc airplanes were powered by small internal combustion engines, using liquid fuels. Models powered by electric motors were few and far between. The electric rc airplane is now becoming much more common, especially in models designed for beginning pilots.

Electric power advantages include reliability, convenience, low noise, low vibration, and lack of fuel residue (clean).  The disadvantage of early systems was low power. However recent electric airplane motors, combined with advanced batteries, have increased the performance of electric rc airplanes dramatically.
 
In the more common Brushed motors, current switching is done using sliding contacts known as brushes. The contacts get hot and wear out over time. In Brushless motors, the switching happens electronically using a special voltage regulator (speed controller). This second type of motor and its controller are more expensive to make. Its advantages are no maintenance and higher performance.

There are three main types of batteries in use for electric airplane motors.  These are Nickel Cadmium


(NiCad), Nickel Metal Hydride (NiMH) and Lithium Polymer (LiPo). LiPo batteries are lighter for a given application, but tend to be more expensive than NiCad or NiMH. 
 
Electric rc airplane types include powered sailplanes, scale models, aerobatic models, and ducted fan (jet-type). Virtually any type of rc model can now be electric powered. Even powerful electric helicopters are now a reality. In addition, some new types of rc models have emerged that were not practical before, e.g. parkflyers and indoor flyers. For the beginner, something slow and stable is recommended for a trainer aircraft.

Visit the RC Airplane Advisor for more info about Electric RC Airplanes.


This article may be reprinted if proper credit is given and all links left
intact.


Copyright©2005 RC Airplane Advisor

 



About the Author

Andre is a regular contributor to the RC Airplane Advisor:
www.rc-airplane-advisor.com

 

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