GRAUPNER Skalar, Manual

Page: 37 / 59

elektro
Skalar
37
12. Setting up
12.1 Setting up the cyclic control system
The basic settings for the roll-axis and pitch-axis control systems should already be correct if
you have installed the linkages exactly as described in the instructions. Since the instructions
include the lever lengths (correct linkage holes), the final setting up is carried out using the
electronic facilities provided by your transmitter. Note that the servo travel should not be set too
high, and ensure that the swashplate does not strike its end-stops on the main rotor shaft at
either end-point of the transmitter stick travel for roll-axis and pitch-axis movements, as this
would mean that the collective pitch control could not move freely in the axial direction.
12.2 Main rotor pitch settings
Main rotor pitch is measured using a pitch gauge (optional accessory, not included in the kit).
The following table shows the recommended basic settings, but the optimum values may well
vary from model to model according to the rotor blades you are using.
Minimum Hover Maximum
Hovering and practice -2° 5,5°...6° 12°
Aerobatics -4° 5°... 5,5° 8°... 9°
Auto-rotation -4° 5,5° 13°
The best way of setting the correct blade pitch on the transmitter is as follows:
1. Measure the hovering pitch and set it to the correct value.
2. Measure collective pitch maximum and minimum and adjust the values according to the
following diagrams using your transmitter's collective pitch curve facility.
12.3 Setting up the motor control system
The following diagrams show two alternative motor control curves:
• The „normal“ power curve is suitable both for hovering and normal circuits.
• Since the motor does not stop at any setting of the collective pitch stick when the
„Aerobatics“ power curve is set, this curve must only ever be selected when the model is in
flight.
•
The values stated above can only be a guideline, as they vary greatly according to the motor
used; there is no alternative but to fine-tune them during the test-flying programme.