Is a soft mount even needed for an electric powered pattern plane?
It depends on your priorities. Granted the vibration environment created by an electric motor is much less hostile to the airframe and equipment than that created by a glow or ignition motor. However, the electric motor/propeller combination does generate harmful vibration and transmits it into the airframe, just at frequencies and amplitudes that are not easily observed with the naked eye. Our philosophy is that if we can provide an inexpensive, quality product that makes the task of mounting the motor easier, and effectively filters the vibration from the airframe, its a worthwhile improvement over hard mounting the motor.
