Minimization of cruise drag due to pitch trim.

Table 6: Minimization of cruise drag due to pitch trim.

Surface		i = 1	i = 2	i = 3	i = 4	i = 5	Mean
Starting value	$δ_{i}^{(0)}$	8.97977	0.0	0.0	0.0	0.0	-
	$C_{M i}^{'}$	0.00534027	0.0015785	0.004075	0.0087615	0.003297	-
	$C_{D i}^{i}$	+0.0000218459	-0.0000565	-0.0000885	-0.00000650	0.0001135	-
	$λ_{i}^{(0)}$	-244.452	26.876	46.045	(1347.923)	-29.048	-50.145
First iteration	$δ_{i}^{(1)}$	2.60104	19.62538	6.26530	1.86823	-2.88850	-
	$C_{M i}^{'}$	-0.00542265	+0.000303559	+0.0000723094	0.000163509	0.00349180	-
	$C_{D i}^{'}$	-0.000177933	+0.0000303559	+0.0000723094	0.000163509	0.0000682468	-
	$λ_{i}^{(1)}$	30.476	-49.377	-50.290	-50.160	-51.169	-34.104
Second iteration	$δ_{i}^{(2)}$	10.55787	3.07902	1.23689	0.77122	1.91095	-
	$C_{M i}^{'}$	0.00531923	0.00151542	0.00398842	0.00852936	0.00320782	-
	$C_{D i}^{'}$	0.0000728038	-0.0000429997	-0.0000567532	0.0000636810	0.000143438	-
	$λ_{i}^{(2)}$	-73.063	35.242	70.277	-133.939	-223.638	24.431
Third iteration	$δ_{i}^{(3)}$	9.15188	-4.39216	-4.66620	-5.24555	-20.06798	-
	$C_{M i}^{'}$	0.00533797	0.00550892	-0.00440163	0.013341	0.004233	-
	$C_{D i}^{'}$	0.0000274108	-0.0000726513	-0.000208266	-0.000483845	-0.00020089	-
	$λ_{i}^{(3)}$	-194.740	75.827	21.135	21.358	21.074	34.848
$δ_{i}^{(4)}$		5.65745	19.56849	3.45661	2.27351	5.56212	-