Hi， I am building a single-engine aircraft with propeller rotation in the
left-hand direction (cockpit view), which seems to be relatively rare.While
using new propmodel，by setting the “prop_mod_reverse_centre parameter”, I
adapt the propeller rotation. However, the behavior of the aircraft, such as
the yaw behavior during takeoff, is the same no matter how I set it. I would
like to ask if this parameter is set correctly or if there are other
parameters involved in the control. Thank you.
Hello @starwolf If prop_mod_use_modern is set to 1, then
prop_mod_reverse_center should be enough. Have you tried using the debug
Sim Forces view or Debug CFD to debug your aircraft behaviour?
Regards, Sylvain
Thank you for the reply！ I have tested several times with
prop_mod_use_modern is set to 1, and **prop_mod_reverse_center set 0 or 1
.**In **** Debug CFD the airflow did reversed with the setting . and it does
have effect when in the air. However, when ****running take-off on the
ground, the plane yaw to the left regardless of the
prop_mod_reverse_center setting (even with the high yaw scale ). Any other
suggestions please?
Hello @starwolf Ok, here are some additional possibilities: - Check the
ThrustAnglesPitchHeading parameters in the GENERALENGINEDATA section
of your engines.cfg. Sometimes, a heading angle is set to compensate for
the yaw tendency. - Check the engine_wash_on_roll parameter in the
FLIGHT_TUNING section of your flight_model.cfg. When CFD data
reinjection is disabled, this is used to tweak a “fake” propwash effect. It
compensates for roll when you’re flying but on the ground, it has a big
influence on yaw. You can change the sign of this parameter if you have set it
to something else than 0. Let us know if that solves your problem. Regards,
Sylvain