ROBBE S28865, Assembly And Operating Instructions Manual, Page: 5 / 40

5
Assembly and Operating instructions
Spirit Fun PLUS RTF
Selecting the throttle - collective pitch curves for normal flight
/ hovering and aerobatics
This setting is selected using the switch 2 (F).
Always move the switch to the “NOR” setting before starting a
flight - this position is marked on the transmitter. It can be swit-
ched over at a throttle stick setting of around 70%. If you switch
the position at a low throttle setting the speed change may cause
damage to the gearbox; the model could also enter an unstable
flight attitude.
In the “3D” setting full throttle is available at both stick end-
points.
Caution: switching from “Normal” to “3D” on the ground
will wreck the model.
Fig. 13 - Throttle - collective pitch curve for normal flight / hove-
ring
Stick at full-throttle (100%), collective pitch +9° to +11°
Stick at hover position (65 - 70%), collective pitch +5° to +6°
Stick at idle position (0%), collective pitch 0°
Throttle curve Collective pitch value
5 Full throttle +9° to +11°
4 85%
3 65 - 70% (hover) +5° to +6°
2 40%
1 0% idle
Throttle curve for normal flight / hovering
Fig. 14 - Throttle - collective pitch curve for aerobatics
Note: the full collective pitch travel is around 21°. Do not set
excessive collective pitch values, as this increases energy
absorption and therefore reduces flight times.
Stick at full-throttle (100%), collective pitch +9° to +11°
Stick at hover position (50%), collective pitch 0°
Stick at idle position (full throttle, negative), bottom setting, thrott-
le 100%, collective pitch -8° to -10°.
Throttle curve Collective pitch value
5 100° full throttle setting +9° to +11°
3 50% half-throttle 0%
1 100% full throttle negative -8° to -10°
Throttle curve for aerobatics / inverted flight
Fig. 15 - Control commands and the model’s response in nor-
mal flight attitude
Gas Throttle Mode 1 Mode 2
Steigen Climb
Gas Throttle
Sinken Descend
Gieren Yaw
Drehung nach links Turn left
Gieren Yaw
Drehung nach rechts Turn right
Nick Pitch-axis
Flug vorwärts Forward flight
Nick Pitch-axis
Flug rückwärts Backward flight
Roll Roll
Flug nach links Bank left
Roll Roll
Flug nach rechts Bank right
Fig. 16 - Control commands and the model’s response in inver-
ted flight attitude
Fig. 16
Gas Throttle Mode 1 Mode 2
Steigen Climb
Gas Throttle
Sinken Descend
Gieren Yaw
Drehung nach rechts Turn right
Gieren Yaw
Drehung nach links Turn left
Nick Pitch-axis
Flug vorwärts Forward flight
Nick Pitch-axis
Flug rückwärts Backward flight
Roll Roll
Flug nach links Bank left
Roll Roll
Flug nach rechts Bank right
Notes on flying the model
Once the model is trimmed out, you can practise hovering and
manoeuvres such as circular, square and rectangular circuits and
figures of eight. Don’t attempt aerobatics until you are complete-
ly confident in controlling the model when hovering and flying
normal circuits.
Tip: the yaw (tail rotor) function is reversed when the helicopter’s
nose is pointing towards you.
For this reason always start by standing behind the model, or at
right-angles to it, to avoid incorrect commands.
Landing
To land the model, slowly and steadily reduce the throttle setting
until the helicopter descends and lands. Don’t close the throttle
abruptly.
After the landing disconnect the flight battery from the speed
controller / receiver, and only then switch off the transmitter.
Caution:
Obstructing the rotor blades when the mechanical system is rota-
ting may result in serious damage to the mechanics, or even a
fire. If the blades are prevented from turning for whatever reason,
immediately reduce the throttle to idle!