RC Helicopter sound of 5 different copters. Both conventional and turbine sounds are featured, with start-up and shut down sequences.
After phenomenal success with the RC aircraft version, Mr RC Sound is now offering a system for scale RC helicopters.
The vessel must have a standard receiver and ESC (Electronic Speed Control) and be on the 2.4GHz band.
Now you can add the final realistic scale feature that will make your scale helicopter really stand out!
Sounds available via selector switch are -
Note that each of the sounds listed above can be selected from this sound system by a selector switch that can be "Stepped " through the sequence.
The auxiliary sounds are actuated by another channel.
The video above shows the V4.1 card mounted to the base of a quadcopter The TT-25 transducer could be mounted on the inside of the fuselage and glued in position so as to allow the fiberglass to "resonate". A piece of foam sandwiched between the fuselage side and the resonator has proven to be successful. Use epoxy as an adhesive.
You can add another resonator, to increase the sound level to the standard V4.1 unit.
For even more sound consider the Ultra unit. See here for full information.
I include this video because it gives a good rendition of the RC helicopter sound possible along with the transmitter stick positions. It shows the start up and shut down sequences very well.
In order to get similar results you should have the sound unit disconnected before the transmitter is turned on. Then ensure the throttle trim lever as well as the throttle stick are at full down position. Then power on the sound system and wait a few seconds to allow the unit to "learn" where full throttle position is. Now you can slowly advance the throttle stick and the start up sequence should be heard. As you advance the throttle the mid range and high speed sounds are simulated.
As the throttle is reduced the appropriate sounds are heard and the shut down sequences are available at low throttle setting. You can adjust the trim lever to say a high position after start up and lower the trim after landing to initiate the shut down part of the sequence.