Eagle Tree Vector - Manual (Page 44)

USER GUIDE
44
Roll Basic Oscillation/Vibration in
Roll Axis Same Slow leveling in
Roll axis when
stick centered Same
Yaw Basic Aggressive, sharp
movements when
yawing, pitch and roll
oscillation/vibration The model
may “fish-tail”
or oscillate
through the
air Yaw drift Same, but
only in 3D +
Heading Hold
Mode. Yaw
drift in all
other modes
is normal
Altitude/Vertical(
used only when
in an altitude
hold flight mode) Aggressive altitude hold,
oscillations, “jumpy”
throttle behavior Aggressive
altitude hold,
oscillations in
the pitch axis Poor altitude
hold/vertical
drift Same
5.11.1.3 Gain Adjustment for Initial Flight
The default gains for the Vector were chosen so that most airframes will fly reasonably well without major
adjustments.
However, airframe types vary widely, so the default gains may cause problems with your model. There are
three ways to reduce the likelihood of gain related problems with your first flights:
a) Set up a gain knob as described below, so you can control the gains of one or more axes
quickly from your radio, during flight. To do this, you will need to map a knob from your
transmitter, as described earlier in the manual. The Gain Knob works differently between
fixed wing and multirotor models, as described below.
b) Program your Mode switch so that one or more positions will invoke a flight mode that does not do 2D
leveling, in case you need to switch quickly out of leveling mode due to gain or other issues.
c) Check an RC forum to see if anyone has posted good Vector gain settings for your particular airframe. Don’t
use gain settings for other controllers with the Vector!
5.11.1.4 Configuring the Gain Knob for Fixed Wing
For fixed wing, the gain knob controls overall gain, which scales (multiplies) the pitch, roll, and yaw gains
all at once. The overall gain can be turned to zero (stabilization off) at the lowest knob setting, which
effectively lets you use the knob as a stabilizer on/off switch.
For fixed wing, the present value of the gain knob is displayed in the notification area each time you turn the
knob. This readout can be used for setting the “Default/RTH Overall Gain” menu item. Once you find a good
overall knob gain setting for your model, you can set this menu item to the value displayed for the knob, which
will then be used during RTH, or if the gain knob is otherwise not available.
5.11.1.5 Configuring the Gain Knob for Multirotors
For multirotors, you can select which of the individual basic gains (pitch, roll, yaw, and/or altitude) that
will be controlled by the knob. To select which axes are controlled by the gain knob, invoke menu mode,
select “Stabilizer Settings” from the main menu, and change “Knob for X Gain control?” to “Yes” for each
gain you want controlled by the knob.