public static void CalcLongNav(DateTime now)
{
if (TWA.IsValid() && BRG.IsValid() && DRIFT.IsValid() && NavPolar.IsLoaded)
{
PolarPoint p = NavPolar.GetTargetVMC(TWS.Average(Inst.BufTwoMin), TWD.Average(Inst.BufTwoMin), BRG.Val, DRIFT.Average(Inst.BufTwoMin), SET.Average(Inst.BufTwoMin));
TGTVMC.Val = p.SPD;
TGTVMC.SetValid(now);
TGTCTS.Val = TWD.Average(Inst.BufTwoMin) + p.TWA;
TGTCTS.SetValid(now);
}
}