Make airbrake drag apply from the actual airbrake, not the base

[BlueCanary]

At the moment when an airbrake is deployed the drag (as shown by the F12 aerodynamic overlay) is applied from the base of the airbrake, even though logically it should be applied from the center of the actual airbrake surface as it would be in real life.

This makes it very difficult to design craft with the spaceship one style shuttlecock reentry - eg. the craft below should be pitched up into a high AoA reentry attitude when airbrakes are deployed, but instead as the drag is centered at the airbrake base it instead pitches down violently. It also reduces the effectiveness of airbrakes as control surfaces by reducing leverage.

[Claw]

I think this should be doable with the existing offsets in the .cfg, actually.

[chaos_forge]

Wouldn't this be more of a bug than a suggestion?

[sal_vager]

Be careful as the airbrakes produce some drag when closed (it has a drag cube after all), editing the CoLOffset or CoPOffset could have unintended results as they do not move with animated parts.

Also, the aero overlay is inaccurate, don't rely on it.

[pincushionman]

The wing lift and mass are also applied at their roots; this is not a problem unique to the airbrakes.