public double CalculateIAS()
{
//stag pressure at pitot tube face / ambient pressure
double pressureRatio = FARAeroUtil.RayleighPitotTubeStagPressure(_vessel.mach);
double velocity = pressureRatio - 1;
velocity *= FARAtmosphere.GetPressure(_vessel) * 2;
velocity /= 1.225;
velocity = Math.Sqrt(velocity);
return(velocity);
}
private void StabDerivCalcButtonAction()
{
CelestialBody body = _bodySettingDropdown.ActiveSelection;
FARAeroUtil.UpdateCurrentActiveBody(body);
altitude = Regex.Replace(altitude, @"[^-?[0-9]*(\.[0-9]*)?]", "");
double altitudeDouble = Convert.ToDouble(altitude) * 1000;
machNumber = Regex.Replace(machNumber, @"[^-?[0-9]*(\.[0-9]*)?]", "");
double machDouble = FARMathUtil.Clamp(Convert.ToSingle(machNumber), 0.001, float.PositiveInfinity);
int flapsettingInt = _flapSettingDropdown.ActiveSelection;
bool spoilersDeployedBool = spoilersDeployed;
if (FARAtmosphere.GetPressure(body, new Vector3d(0, 0, altitudeDouble), Planetarium.GetUniversalTime()) > 0)
{
stabDerivOutput =
simManager.StabDerivCalculator.CalculateStabilityDerivs(body,
altitudeDouble,
machDouble,
flapsettingInt,
spoilersDeployedBool,
0,
0,
0);
simManager.vehicleData = stabDerivOutput;
SetAngleVectors(stabDerivOutput.stableAoA);
}
else
{
PopupDialog.SpawnPopupDialog(new Vector2(0, 0),
new Vector2(0, 0),
"FARStabDerivError",
Localizer.Format("FAREditorStabDerivError"),
Localizer.Format("FAREditorStabDerivErrorExp"),
Localizer.Format("FARGUIOKButton"),
true,
HighLogic.UISkin);
}
}
