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Aircraft stability in its different axis

Total questions: 10

Worksheet time: 7mins

Name
Class
Date
1.

What are the two types of aircraft stability

a)

Neutral stability

b)

Static stability

c)

Dynamic stability

d)

Horizontal stability

2.

What are the types of positive static stability,select all that apply

a)

Lateral stability

b)

Directional stability / vertical stability

c)

Horizontal stability

d)

Longitudinal stability

3.

Longitudinal stability is attained in which axis

a)

Longitudinal Axis

b)

Lateral Axis

c)

Normal Axis

d)

None of the above

4.

Lateral stability is attained in which axis

a)

Normal Axis

b)

Lateral Axis

c)

Longitudinal Axis

d)

None of the above

5.

Directional stability is attained in which axis

a)

Lateral Axis

b)

Longitudinal Axis

c)

Vertical/Normal Axis

d)

None of the above

6.

Select all that apply for the factors on which the longitudinal stability of an aircraft depends

a)

Manufacture of aircraft

b)

Location of wing relative to CG

c)

Location of horizontal stabiliser relative to CG

d)

Location of engine relative to CG

e)

Area of horizontal stabiliser and elevator

7.

Select all that apply ,the factors on which the lateral stability of an aircraft depends

a)

Weight distribution

b)

Sweepback wing

c)

Dihedral wing

d)

Keel effect

e)

Anhedral wing

8.

Select all that apply , for the factors for the directional stability of an aircraft

a)

Area of the fuselage behind CG

b)

Area of the wing

c)

Area of the vertical stabiliser

d)

Area of ailerons

9.

What is keel effect

a)

aircraft tends to steer its lateral axis against the relative airflow

b)

aircraft tends to steer its normal axis against the relative airflow

c)

aircraft tends to steer its longitudinal axis against the relative airflow

d)

aircraft stall

10.

what is keel area

a)

The larger portion of fuselage is in front and below CG

b)

The larger portion of fuselage is behind and above CG

c)

The larger portion of fuselage is behind and below CG

d)

The larger portion of fuselage is in front and above CG