Parameter menu point K
If the RPM Governor is already enabled and you change the preset rotor head speed in the transmitter (i.e. by switching to a different flight mode), there will not be an abrupt change but the system will increase the rotor rpm with a given spool up rate that can be set at menu point K. This rate also determines how fast the rotor head speed will increase when reactivating the RPM Governor after an autorotation maneuver (Autorotation bailout). In this case the normal soft start (which is set at Setup menu point J) may take too much time until the rotor has reached full speed again as the heli is still in the air, so we use this faster spool up rate instead.
The choice is made by moving the rudder stick into one direction until the Status-LED lights in the desired color.
| Status-LED | Fast spool up rate |
|---|---|
| purple | same as Spool up rate J |
| red flashing | 300 rpm/s |
| red | 500 rpm/s |
| blue flashing | 700 rpm/s |
| blue | 900 rpm/s |
| off | user defined |
If you set „same as initial spool up rate“ the spool up rate will then be the same as the rate set at menu point J.
The option “user defined” allows you to choose your own setting that can be edited by using the StudioX software bundle and the separately available USB2SYS interface.
A very high spool up rate can cause the throttle to be opened very fast. Especially when recovering from an autorotation maneuver this can cause the rotor blades to fold in or can damage the main gear in (especially electric models), so only increase the value stepwise and with care. With nitro helicopters in genereal using low values is recommended. Here an abrupt throttle change out of idle position can cause the engine to quit! Additionaly nitro motors react quite slow to throttle changes and it takes some time to speed up the rotor. So when the change rate does not fit to the mechanical speed up, it can happen that the motor is driven to full throttle during spool up by accident as the motor does not speed up immediately.
When the AttitudeControl feature is not installed on your unit, pressing the button will save the setting and exit the Parameter menu. Now MICROBEAST PLUS is ready for operation again!
When using the MICROBEAST PLUS ProEdition upgrade (including AttitudeControl), push the button to save the configuration and to proceed to Parameter menu point L.