No renderer 'pdf' found for mode 'pdf'
aircraft:tmd:airbrake
Table of Contents
Airbrake
In the Aerofly FS 2 an airbrake
represents a controllable area that creates drag.
Other Aerodynamic classes
Function Description
The airbrake is probably using something similar to this formula:
F_d = 0.5 * rho * v^2 * Cd * Area * Control
Where
- v is the velocity
- Cd is the drag coefficient for the maximum
Area
Area
is the surface size in square meters perpendicular to X0.Control
is the dynamic input values between0.0
and1.0
that scales the Area linearlyX0
is the direction of the airbrake where it is acting (usually this is the x-axis but it could also be pointing upwards.- rho is the air density at the Body.R position in the world (+R0 properly rotated with the Body orientation as far as the author of this text wants to believe)
Then the calculated drag is acted upon the Body
at the R0
location along the X0
axis. The real formula used may be a lot more complex to account for the rotation speed of the Body
.
Example Code
Caution: Requires a rigidbody with the nameFuselage
<[airbrake][Airbrake][] <[string8][Body][Fuselage]> <[tmvector3d][R0][ 0.0 0.0 0.0 ]> <[tmvector3d][X0][ 1.0 0.0 0.0 ]> <[float64][Cd][1.5]> <[float64][Area][1.0]> <[string8][Control][ServoAirbrake.Output]> >
aircraft/tmd/airbrake.txt · Last modified: 2019/07/07 10:50 by jh