The first practical flying models took to the air at
the beginning of the 20th century. Progress with performance of these
aircraft depended on technology. All flying models need to be
constructed of light, strong materials to fly properly, and require
some sort of power to achieve flight.
Twisted rubber bands were
an early form of lightweight and inexpensive power for model aircraft,
and are still used today on certain free flight planes. As the models
grew in size and weight, small gas engines became the preferred means
of powering the vast majority of flying airplanes. Gas model engines
produce a plenty of power, but require strong and heavy airframe
structures to handle motor vibration, create an oily mess from the
engine exhaust, and the engines are quite loud.
Over the past
five years, electric motors have literally taken over as the preferred
power source for model airplanes. A fortunate convergence of
technologies - small, lightweight and inexpensive radio control
systems, efficient rechargeable batteries and advanced brushless
electric motors - have combined to revolutionize the model airplane
hobby. Many of today\\\\\\\'s radio control aircraft modelers have flown
nothing but electric RC planes, and have never even started a small gas
engine.
This trend favoring the electric RC plane is likely to
continue. Once exposed to electric RC plane flight, the advantages
become very clear over gas engines. Gas engines require a lot of
support. Fresh fuel, electric glow plug igniters, electric starters and
batteries, plus a wide variety of tools all must be on hand. It is not
uncommon to see modelers spending the majority of their day at a flying
field working to get a balky gas engine started.
Starting an
electric RC airplane poses no such challenges. Flight batteries can be
fully recharged prior to arriving at the flying field. The model
airplane pilot literally turns on a switch for instant, silent power
from the electric RC plane motor. While flying, there is never the
worry of an engine failure so common to gas fueled flight; the electric
motors have no moving parts other that the prop shaft, and will run as
long as there is battery power.
As an added benefit of electric
RC plane flight is the quiet power provided by the electric motor.
Flying fields for gas powered models are becoming harder and harder to
keep, as increasing urbanization leads to more and more noise
complaints. Engine noise is an extremely important issue for the future
of the hobby. Noise complaints can lead to the rapid closure of a
flying field. Electric RC flight completely bypasses these concerns, as
you simply cannot hear the smaller electric RC motors in flight.
In
fact, these smaller electric RC modeler groups earned the new nicknames
of park or backyard flyers. For the first time in the history of radio
control airplane flight, anyone can fly their electric RC airplanes in
their back yard, or across the street at a local park. Neighbors will
not even hear the small, silent electric motors powering these
aircraft. Without the need to bring along the normal gas engine support
equipment, the electric RC pilot is airborne in minutes, and usually
within walking distance of his or her home. An added benefit of this
spontaneous flight activity in the local neighborhood is increased
exposure of this wonderful hobby to a wider cross section of potential
future electric RC hobbyists. You could well spark a life long interest
in aviation to some young person viewing one of these aircraft in
flight.
The hobby of flying an electric RC airplane will only
continue to grow. Electric motors are becoming more powerful and less
expensive, and the advent of ready to fly electric model aircraft is
leading to yet further interest in these unique models.