Setting The Direction Of Gyro Effect; Supplementary Notes - ROBBE RO-WING 300 Notice D'utilisation

Operating instructions
Order No.
Gyro RO-WING-300
8418
learn to appreciate the support provided by the RO-WING 300 in this situation.

Setting the direction of gyro effect

Before you use the RO-WING 300 for the first time it is absolutely essential to check the
direction of effect of the gyro. If set incorrectly, the gyro will still respond to disturbances,
but will amplify them instead of correcting them. This test can only be carried out succes-
sfully once you have completed all the settings at the transmitter. Check that all the servos
rotate in the correct direction when the gyro is switched off. Now set the gyro gain to 100%.
For this check switch the model on and rotate it to and fro around the axis which the RO-
WING 300 is intended to stabilise. Watch the response of the control surface or surfaces
very closely. The gyro is set correctly when the control surface deflects in the direction
which counteracts the movement. However, if the control surface deflects in the direction
which would amplify the model's movement, you must reverse the direction of gyro effect
on the control surface or surfaces which responds incorrectly.
For example, if you have set up the gyro to stabilise the longitudinal axis, rotate the model
around this axis: twist the fuselage to roll the model to the right, as seen from the tail loo-
king forward, and the gyro should respond by giving a left aileron movement, i.e. the left-
hand aileron should rise briefly, the right-hand aileron fall briefly.
If one or both control surfaces exhibits the opposite reaction, reverse the direction of gyro
effect on that servo by operating the corresponding micro-switch. Do not reverse the direc-
tion of rotation of the servo or servos at the transmitter. The switches can be operated using
a small screwdriver or a fine pair of tweezers. Note that these switches do not reverse the
servo in the conventional sense; the function refers exclusively to the direction of response
of the gyro to an unwanted rotational movement of the model around the axis to be con-
trolled.
7.

Supplementary notes

As a responsible pilot you should check the direction of effect of the gyro before each flight.
As part of the pre-flight check all pilots ensure that the control surfaces are operating nor-
mally, but you should now check that the gyro is working properly at the same time.
When you are using a sensitive gyro like the RO-WING 300 to control two servos, you must
expect an increase in the airborne system's consumption of electrical energy. The effect of
the gyro is that both aileron servos work almost constantly, and therefore draw current from
the receiver battery at a rapid rate. If you enjoy extended thermal flights, protracted sessi-
ons of slope flying, or just like to carry out a large number of flights in a single session, you
must provide adequate battery capacity in the model. However, a perfectly good alternati-
ve is to recharge the receiver battery between flights, using a suitable field charger powe-
red by your car battery.
If you are using the gyro in an electric-powered model aircraft, we recommend that you sel-
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