/// <summary>
/// removes deltaV and correct amount of fuel.
/// </summary>
/// <param name="dv"></param>
internal void BurnDeltaV(double dv)
{
DeltaV -= dv;
TotalFuel_kg -= OrbitMath.TsiolkovskyFuelUse(DryMass_kg + TotalFuel_kg, ExhaustVelocity, dv);
}