public void Update(Mesh mesh)
{
Wing.UpdateSections();
Fuselage.UpdateSections();
HorizontalStabilizer.UpdateSections();
VerticalStabilizer.UpdateSections();
UnderCarriage.UpdateSections();
}
public LandingGearAlignmentStatus AlignLandingGear(Transform transform)
{
// Position of c_g from ground
// TODO: Make the height of this dynamic
var h_cg = -66.875f;
var minStrokeStrutHeight = (Mathf.Pow(Constants.Metrics.VerticalLandingVelocity, 2) / (2 * Constants.g * 0.9f * 2.7f) * 25f);
var minEngineClearance = (Wing.Engines.First().Diameter * 10f * 1.9f) + Wing.Engines.First().Root.y + (0.4f * Fuselage.Diameter) - 20f;
var strutHeight = Mathf.Max(minStrokeStrutHeight, minEngineClearance);
transform.Translate(new Vector3(0, strutHeight + 3f - transform.position.y));
UnderCarriage.StrutHeight = strutHeight;
// Strut Length Calculator
for (int i = 0; i < 10; i++)
{
var wingStart = Wing.GetXPosition();
var wingRoot = Wing.RootChord;
var landingGearStart = CentreOfGravity.z + Mathf.Tan(15 * Mathf.Deg2Rad) * -h_cg;
if (landingGearStart < wingStart + wingRoot)
{
UnderCarriage.RearGearPosition = -landingGearStart;
}
else
{
return(LandingGearAlignmentStatus.TipBackNotInRange);
}
this.CalculateCentreOfMass();
}
float l_n = CentreOfGravity.z + UnderCarriage.NoseGearPosition.z;
float l_m = -UnderCarriage.RearGearPosition - CentreOfGravity.z;
var taildownAngle = Mathf.Atan(1f / Fuselage.Afterbody.AfterbodyLengthDiameterRatio) * Mathf.Rad2Deg;
var tipbackAngle = Mathf.Atan(Mathf.Abs(l_m / h_cg)) * Mathf.Rad2Deg;
if (tipbackAngle < taildownAngle)
{
return(LandingGearAlignmentStatus.TipBackSmallerThanTailDown);
}
UnderCarriage.StrutCount = 1;
if (MaximumTakeoffWeight < 200000 * Constants.lb2kg)
{
UnderCarriage.WheelCount = 2;
}
else if (MaximumTakeoffWeight < 400000 * Constants.lb2kg)
{
UnderCarriage.WheelCount = 4;
}
else
{
UnderCarriage.WheelCount = 6;
UnderCarriage.StrutCount = 2;
}
var delta = Mathf.Asin(h_cg / (l_n * Mathf.Tan(63f * Mathf.Deg2Rad)));
var width = (l_n + l_m) * Mathf.Tan(delta);
// TODO: cSet landing gear height
UnderCarriage.Width = width;
UnderCarriage.UpdateSections();
return(LandingGearAlignmentStatus.Success);
}