SETUPMENÜ L - Pitcheinstellung
Bei Einstellpunkt L wird der maximale positive und negative Pitchanstellwinkel festgelegt. Stelle dabei sicher, dass das MICROBEAST PLUS die Steuerrichtungen korrekt anzeigt. Das ist vor allem für eine korrekte Funktion der AttitudeControl (Rettungsfunktion) wichtig, hat aber auch auf den Normalflug Auswirkungen!
Wenn Du die Pitcheinstellung durchführst, muss die Pitchkurve im Sender auf Werkseinstellung stehen (z.B. -100 0 +100). Der Steuerknüppel muss den Pitchkanal über den ganzen Bereich bewegen!
Wenn Du die Einstellung beendet hast, kannst Du die Pitchkurven falls gewünscht ändern, z.B. für verschiedene Flugzustände. Für optimale Performance ist es aber wichtig, dass der grundsätzliche Arbeitsbereich bestimmt wird. Damit verbunden ist auch zu beachten, dass der maximale Pitchwinkel nicht unbedingt von den Vorlieben des Piloten abhängt, sondern vor allem auch durch die mechanische Auslegung und Leistungsfähigkeit des Helis gegeben ist. Bei einem Trainermodell zum Beispiel ist der Pitchbereich üblicherweise symmetrisch und reicht von -12 bis + 12 Grad. Ein Anfänger oder Scalepilot wird diesen Bereich möglicherweise gar nicht nutzen, vor allem nicht in die negative Richtung. Dennoch sollte der maximale Bereich in diesem Fall nicht auf zum Beispiel -4 bis + 12 Grad gestellt werden, weil das nicht den Möglichkeiten des Modells entspricht. Besser ist es, im MICROBEAST PLUS -12 und +12 Grad einzustellen und dann nachträglich über die Pitchkurve im Sender das Pitch entsprechend zu reduzieren. Im Handbuch des Helikopters findest Du Angaben zum optimalen Pitchbereich und der Pitcheinstellung.
Adjustment on the device
1. Move the thrust stick up and down and check whether the pitch is changing direction correctly. If not already done at SETUP MENU point H, use the reverse function for the pitch channel in the transmitter to reverse direction of pitch movement in case it is wrong.
2. Afterwards check the Status LED color: on positive pitch it must be blue, on negative pitch it must light in red color. In case the display is inverted (red = positive and blue = negative), tap the rudder stick once to reverse the internal pitch direction of MICROBEAST PLUS.
3. When you move thrust stick to full deflection the Status LED should light solid, not just flash. If this is not the case increase the servo throw/endpoint of the thrust channel in the transmitter for each direction just as far so that the Status LED changes from flashing to solid when the stick reaches the end positions. (Note: Do not increase the endpoints too much in the transmitter. We need an exact match of full stick position and stick end position. So the Status LED should just change from flashing to solid when reaching the end position.)
4. Finally adjust the maximum collective pitch when the thrust stick is at full deflection. Increase or decrease the maximum amount of collective pitch with aileron (left = decrease, right = increase). Then move the thrust to full negative and again adjust the pitch using the rudder.
Always set the servo direction in the transmitter first, then check the display on the MICROBEAST PLUS and change the internal control direction if it does not match the real direction. Do not change the internal direction in order to change the servo direction! This is only used for telling the system in which direction is up and down. Be very conscientious when doing this setup step as wrong direction will cause loss of control during rescue bailout and poor performance in general!
Setup with StudioXm
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1. When you see the adjustment screen for the collective pitch move the thrust stick up and down and check whether the pitch is changing direction correctly. If not already done at SETUP MENU point I, use the reverse function for the pitch channel in the transmitter to reverse direction of pitch movement in case it is wrong.
2. Afterwards check the Status LED color and display in the app: on positive pitch the Status LED must be blue, on negative pitch it must light in red color. In case the display is inverted (red = positive and blue = negative), reverse the internal pitch direction of MICROBEAST PLUS by changing the direction in the app.
3. If the stick is not moving far enough, you will see the message "Increase!". In this case increase the servo throw/endpoint of the thrust channel in the transmitter for each direction just as far so that the Status LED changes from flashing to solid and the label changes to "OK" in the software when the stick reaches the end positions. (Note: Do not increase the endpoints too much in the transmitter. We need an exact match of full stick position and stick end position. So the Status LED should just change from flashing to solid when reaching the end position.)
4. Finally adjust the maximum collective pitch when the thrust stick is at full deflection for each direction using the + and - buttons in the app.
Always set the servo direction in the transmitter first, then check the display on the MICROBEAST PLUS and change the internal control direction if it does not match the real direction. Do not change the internal direction in order to change the servo direction! This is only used for telling the system in which direction is up and down. Be very conscientious when doing this setup step as wrong direction will cause loss of control during rescue bailout and poor performance in general!
What pitch is useful for my helicopter?
In general you can say "the smaller the helicopter, the more pitch you have to set". But it also depends on how much motor power you helicopter has, the type of rotorblades you use and finally in what you expect to do with the helicopter. So beginner or scale pilots will not need as much pitch as a 3D aerobatics pilot or high speed flyer. Anyhow, as already mentioned above set the pitch range in MICROBEAST PLUS so that it roughly fits to your helicopter mechanics and its capabilities.
| Heli size (electric) | Maximum pitch |
|---|---|
| 250 | 13.0 - 13.5 degrees |
| 450 | 13.0 - 13.5 degrees |
| 500 | 13.0 degrees |
| 550 | 12.5 degrees |
| 600 | 12.0 - 12.5 degrees |
| 700 | 11.5 - 12.0 degrees |
| 800 | 11.5 degrees |
| Heli size (nitro) | Maximum pitch |
|---|---|
| .37 - .40 | 12.0 degrees |
| .50 - .55 | 11.5 - 12.0 degrees |
| .90 - .105 | 11.5 - 12.0 degrees |
| Gasser | 10.5 - 11.0 degrees |
Measuring pitch without pitch gauge
If your helicopter is too small for attaching a digital pitch gauge or simply in case you haven't got one you can use a little trick to measure the pitch anyway. You can calculate the angle from the distance the rotor blades move from zero position. Actually this is not as accurate as measuring the pitch with a digital pitch gauge, but it's better than nothing. All you need for this is a ruler and and a good eye. First you need to know the length of the rotorblades from the bolt hole to the outer edge. Usually this matches the specified rotor blade length of the manufacturer. Then you align the rotorhead with the longitudinal axis of the helicopter and fold both rotorblades to one side (as this will put heavy load on the servos it is not recommended use this method on large helicopters with heavy blades!). Now hold your ruler to the blades and mark the zero position. Then when you add positive or negative pitch you can measure the distance between the outer edge of one blade to the other. This distance can be transfered into degrees of blade pitch using the mathematical formula of sinus. Or the other way round you can calculate how far you rotorblades must move away from each other in order to get a specific blade pitch.
Enter blade length in millimeters
Enter blade pitch in degrees