public static double HoldingFuelFlow(this FuelDataItem item, double weight)
{
var refWt = item.HoldingFuelRefWt;
var fuelFlow = item.HoldingFuelFlow;
return(fuelFlow / refWt * weight);
}
private static double InterpolateHelper(FuelDataItem item,
Func <DataPoint, double> getter, double grossWeight)
{
var p1 = item.DataPoint1;
var p2 = item.DataPoint2;
return(Interpolate1D.Interpolate(
p1.Weight, p2.Weight, getter(p1), getter(p2), grossWeight));
}
/// <summary>
/// Apply fuel bias to the given FuelDataItem. If bias is 1 then
/// return value will be the same as original.
/// </summary>
public static FuelDataItem WithBias(this FuelDataItem f, double bias)
{
return(new FuelDataItem(
f.HoldingFuelFlow * bias,
f.HoldingFuelRefWt,
f.TaxiFuelFlow * bias,
f.ApuFuelFlow,
f.ClimbKias,
f.DescendKias,
f.DataPoint1.WithBias(bias),
f.DataPoint2.WithBias(bias),
f.FuelTable.WithBias(bias)));
}
public static double EtopsCruiseFuelFlow(this FuelDataItem item, double grossWeight)
{
return(InterpolateHelper(item, p => p.EtopsCruiseFuelFlow, grossWeight));
}
public static double OptCruiseAlt(this FuelDataItem item, double grossWeight)
{
return(InterpolateHelper(item, p => p.OptCruiseAlt, grossWeight));
}
public static double DescentFuelFlow(this FuelDataItem item, double grossWeight)
{
return(InterpolateHelper(item, p => p.DescentFuelFlow, grossWeight));
}
public static double ClimbGradient(this FuelDataItem item, double grossWeight)
{
return(InterpolateHelper(item, p => p.ClimbGradient, grossWeight));
}
public static double CruiseKias(this FuelDataItem item, double grossWeight)
{
return(InterpolateHelper(item, p => p.CruiseKias, grossWeight));
}
public static double HoldingTime(this FuelDataItem item, double fuel, double weight)
{
return(fuel / item.HoldingFuelFlow(weight));
}
public static double HoldingFuel(this FuelDataItem item, double time, double weight)
{
return(item.HoldingFuelFlow(weight) * time);
}
public FuelData(FuelDataItem Data, string ProfileName, string FilePath)
{
this.Data = Data;
this.ProfileName = ProfileName;
this.FilePath = FilePath;
}