AviPLAN Airside Pro takes into account the effect of steered main/body gear wheels for the Boeing 777 series, Airbus A380 series, Antonov An-124, and Lockheed C5A/B. It is always active for these aircraft because sources have stated that the system cannot be deactivated.

For the Boeing 747 series, which operates a steered body gear system that can be deactivated, AviPLAN Airside Pro takes into account the effect of steered body gear wheels unless the object is denoted with 'No BGS' (No Body Gear Steering).

For all other aircraft which offer a steered main gear system that can be switched off, AviPLAN Airside Pro does not take into account the effect of steered main/body gear wheels in order to display the most conservative result.