Comparative effectiveness of control surfaces.

Table 11: Comparative effectiveness of control surfaces.

Surface	Aerodynamic derivatives			Effectiveness for		Optimal deflection	C’_Mi C’_Di
Surface	$C_{M i}^{'}$	$C_{D i}^{'}$	C’_Li	Pitch balance	Drag reduction	Optimal deflection	C’_Mi C’_Di
Elevator	0.00546	-0.0002685	-0.011505	High	Very High	7.4047°	-1.466 × 10^-6
Outer elevator	0.0015185	-0.0000565	-0.003525	Minimal	Low	7.5882°	-8.580 × 10^-8
Inner flap	0.004075	-0.0000885	-0.009785	Medium	Low	-0.6048°	-3.606 × 10^-7
Middle flap	0.0087615	-0.00000650	-0.001796	Very high	Minimal	-1.4860°	-5.695 × 10^-8
Aileron	0.003297	0.0001135	-0.0049865	Low	High	-7.2529º	3.742 × 10^-7
All	0.027545	-0.00321	-0.05320	High	Small	-	-8.842 × 10^-5