Initializing the wind direction and speed

[RobertXWL]

Hello All JSBsim members,
I'm trying to initialize the wind for the environment like this
"initial_windx = Property('ic/vw-bx-fps', 'Wind velocity initial condition in Body X frame in feet/second [rad/s]')
initial_windy = Property('ic/vw-by-fps', 'Wind velocity initial condition in Body Y frame in feet/second [rad/s]')
initial_windz = Property('ic/vw-bz-fps', 'Wind velocity initial condition in Body Z frame in feet/second [rad/s]')"
but I failed
please explain for me how can I initialize the wind for the environment, or change the wind while flying, without using the script,
and how should I define the properties of the initial wind
Thank you very much

[bcoconni]

@RobertXWL, the properties you need to modify to change the wind heading and velocity are described in discussion #764:

Wind can be modified using the properties atmosphere/psiw-rad (wind direction) and atmosphere/wind-mag-fps (wind velocity).