Throttle nudge enable (THROTTLE_NUDGE)

Description

This feature allows the pilot to "nudge" (override) the target airspeed or throttle setting during autonomous flight (Auto, Cruise, Loiter) simply by moving the throttle stick. It gives the pilot an intuitive way to speed up or slow down the aircraft without switching modes or changing parameters.

The Mathematics

If Throttle Stick > 50%:
$$ \text{Target Airspeed} = \text{AIRSPEED\_CRUISE} + (\text{AIRSPEED\_MAX} - \text{AIRSPEED\_CRUISE}) \times \frac{\text{Stick}\% - 50}{50} $$

If no airspeed sensor:
$$ \text{Target Throttle} = \text{Base Throttle} + \text{Nudge Factor} $$

The Engineer's View

Defined in ArduPlane/Parameters.cpp. Logic resides in ArduPlane/Events.cpp or similar throttle loop.

• Enabled (1): Pilot has authority to increase energy/speed.
• Disabled (0): Stick position is ignored in auto-throttle modes.

Tuning & Behavior

• Default Value: 1 (Enabled)
• Safety: Useful for flying into strong headwinds where the cruise airspeed might be insufficient.