Update quadplane-transitions.rst

This note is inaccurate. See code here: https://github.com/ArduPilot/ardupilot/blob/bb96db5466ea359139c34088f46d7b7239e1a381/ArduPlane/quadplane.cpp#L1515C13-L1534C18 See user feedback here: https://discord.com/channels/674039678562861068/1325981110601125979/1326208682018472050
ArduPilot · Jan 7, 2025 · fac41df · fac41df
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diff --git a/plane/source/docs/quadplane-transitions.rst b/plane/source/docs/quadplane-transitions.rst
@@ -40,7 +40,7 @@ Transition to Fixed Wing Mode from VTOL
 
 -  If :ref:`Q_TRANS_FAIL<Q_TRANS_FAIL>` is not zero, then exceeding this time before reaching  :ref:`AIRSPEED_MIN <AIRSPEED_MIN>` airspeed will cancel the transition and the aircraft will immediately execute the action specified by :ref:`Q_TRANS_FAIL_ACT<Q_TRANS_FAIL_ACT>`. The default is 0, which disables this timeout.
 
-.. note:: if bit 19 of :ref:`Q_OPTIONS<Q_OPTIONS>` is set and :ref:`Q_TRANS_FAIL<Q_TRANS_FAIL>` is not zero, and if the airspeed is greater than 1/2 of :ref:`AIRSPEED_MIN<AIRSPEED_MIN>`, then the transition to fixed wing will immediately complete. This is useful if no airspeed sensor is being used, and the transition is into a headwind, which could prevent an accurate airspeed estimate from being obtained until a turn is made. Without using the :ref:`Q_TRANS_FAIL<Q_TRANS_FAIL>` timeout and this Q_OPTION, the transition could be indefinitely long since airspeed might be reported as below :ref:`AIRSPEED_MIN<AIRSPEED_MIN>` due to low groundspeed.
+.. note:: for tiltrotors only: if bit 19 of :ref:`Q_OPTIONS<Q_OPTIONS>` is set and :ref:`Q_TRANS_FAIL<Q_TRANS_FAIL>` is not zero, and if the groundspeed is greater than 1/2 of :ref:`AIRSPEED_MIN<AIRSPEED_MIN>`, then the transition to fixed wing will immediately complete. This is useful if no airspeed sensor is being used, and the transition is into a headwind, which could prevent an accurate airspeed estimate from being obtained until a turn is made. Without using the :ref:`Q_TRANS_FAIL<Q_TRANS_FAIL>` timeout and this Q_OPTION, the transition could be indefinitely long since airspeed might be reported as below :ref:`AIRSPEED_MIN<AIRSPEED_MIN>` due to low groundspeed.
 
 .. note:: The airspeed used during transition can be found in dataflash logs as CTUN.As. This is a canonical value which will include the airspeed sensor if enabled, or use the synthetic airspeed if not.