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===RPM Governor - What is this and what does it?===
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Using the governor function you can simply preset your head speed with the transmitter, i.e. when you like to fly your heli with 2500rpm, you set your throttle curve in idle 1 to straight 62.5% in the TX. Then you just place your heli on the flight field, switch to Idle1 and it'll autonomously will spool up the rotor rpm to 2500rpm. Then you can take off and fly and you will get 2500rpm all over the flight, no matter what load condition the battery is or if your nitro motor will run lean. The governor will try to hold these 2500rpm as good as possible. When rotor head load increases, it'll increase throttle as necessary, when you onload the head and the head speed increases due to aerodynamic force, it'll decrease the throttle automatically. Typically this is a lot better than only controlling the motor with static curves made in the transmitter. And next time, again you will get those 2500rpm when flying the next battery/fuel tank, although this battery might be old and voltage is slightly different or the nitro motor may run more rich or lean.<br />
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For '''electric helicopters''' the governor function is a good thing if you use an ESC with bad head speed governing capability. Most (cheap) ESC do not have a very good governor or don't feature any governor function at all. For example with some ESC you may get tail pumping at some specific rpm ranges or very abrupt throttle inputs when the load on the rotorhead changes. Here you can get good results with the BEASTX governor as besides observing the motor rpm/head speed this will allow to give direct throttle input to cyclic/collective stick input. So it always will be one step ahead compared to a traditional governor function. Using a high priced ESC on the other hand, these typically have so good governor algorithms that it doesn't make any sense to use an external governor. The ESC has much better knowledge of what the motor is doing at the moment, what's the momentary current, voltage, etc. So here the BEASTX governor function probably will not give any performance boost.<br />
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So if you are not afraid of the additional wiring and setup procedure using the BEASTX governor can make your heli and your ESC get a very consistent head speed governing at minimum effort, . Of course if you think your ESC is working OK and that the governing is working to your satisfaction, there is no need to use the governor feature.<br />
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Especially for the '''nitro helicopters''' using the governor functionality of your MICROBEAST PLUS can be very handy as the unit necessary for this is already mounted to your heli. There is no need for an extra device. Just connect a rpm sensor of your choice to the unit and after performing the governor setup procedure you will not have to adjust complicated throttle curves anymore. Just choose the desired head speed you want to fly with and set it up in the transmitter, MICROBEAST PLUS will do the rest including soft start and autorotation bail out feature.<br />
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Please note the RPM Governor function can only be used in combination with a single line (single-wire) receiver
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(Spektrum Satellite, Futaba SBus, SRXL, PPM serial-wire, ...). Using a standard receiver is not possible.
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===RPM Governor - How can I get this?===
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The RPM Governor feature is not included in the basic MICROBEAST PLUS firmware. The feature is available as paid upgrade. You can buy, download and install the upgrade to any MICROBEAST PLUS device using the StudioX V2 PC Software. Furthermore the RPM Governor function is included in the MICROBEAST PLUS Pro-Edition units and it is also included when upgrading an existing unit to the higher priced Pro-Edition firmware.<br />
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===Electric RPM Governor - After setting up and enabling the RPM Governor the ESC does not arm anymore when I power up the unit===
 
===Electric RPM Governor - After setting up and enabling the RPM Governor the ESC does not arm anymore when I power up the unit===
 
- Some ESC do not arm when the throttle value in the radio is too close to the motor starting position. When adjusting throttle endpoints at Governor setup menu point B this was intended, so the system does "know" at which point the motor starts and additionaly the system can determine the throttle positions of the transmitter. Anyhow if this does not work with your ESC and it won't start there is no other option than increasing the throttle endpoints in the transmitter again (after the positions have been set at Governor menu points B and C!) just until the ESC will initialize. Anyhow MICROBEAST PLUS knows at which point the Motor will start as endpoint have been set before. But note that now the rpm setting will differ from the given table of the MICROBEAST PLUS ProEdition manual, as you stretched the throttle range of the transmitter. So the given percentages may not fit to the desired rpms and the percentage for autorotation bailout mode may change. Use Governor menu point D to check how MICROBEAST interprets your throttle curve values by watching the Status LED color in the different flight phases at menu point D.
 
- Some ESC do not arm when the throttle value in the radio is too close to the motor starting position. When adjusting throttle endpoints at Governor setup menu point B this was intended, so the system does "know" at which point the motor starts and additionaly the system can determine the throttle positions of the transmitter. Anyhow if this does not work with your ESC and it won't start there is no other option than increasing the throttle endpoints in the transmitter again (after the positions have been set at Governor menu points B and C!) just until the ESC will initialize. Anyhow MICROBEAST PLUS knows at which point the Motor will start as endpoint have been set before. But note that now the rpm setting will differ from the given table of the MICROBEAST PLUS ProEdition manual, as you stretched the throttle range of the transmitter. So the given percentages may not fit to the desired rpms and the percentage for autorotation bailout mode may change. Use Governor menu point D to check how MICROBEAST interprets your throttle curve values by watching the Status LED color in the different flight phases at menu point D.
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