Strategy

IV

V

VII

VIII - IX

X

Type

Optimal

Optimal

Sub-Optimal

Non-Optimal

Non-Optimal

Concept

Optimal deflections to minimize drag; initial elevator deflection only

Idem; initial equal deflections

Multiples of optimal deflections

Direction of deflection opposite to drag slope

Selection of most effective control surfaces

Constant lift

No

No

Yes

Yes

Yes

Deflections

Initial

Final

Initial

Final

VIII

IX

δ₁

δ₁

δ₁

δ₁

δ₁

8.9798°

0.0°

0.0°

0.0°

0.0°

7.4047°

7.5882°

-0.6048°

-1.4860°

-7.25290°

4.4080°

4.4080°

4.4080°

4.4080°

4.4080°

4.125°

0.02°

1.68°

0.01°

-3.685°

17.912°

0.0868°

8.1637°

0.0434°

-16.002°

-2.8825°

-2.8825°

-2.8825°

-2.8825°

24.77°

2.8588°

2.8588°

2.8588°

2.8588°

0.0°

3.7402°

0.0°

0.0°

0.0°

-8.6295°

α

C_D

ΔC_D (counts)

ΔC_D/C_D (%)

0.71789°

0.00561

-8

-1.4

0.71789°

0.00770

+201

+35.3

3.1267°

0.00635

+66

+11.6

0.71789°

0.00651

+82

+14.4

2.1313°

0.00787

+218

+38.3

0.71789°

0.00554

-15

-2.6