Chapter 5.9 - Exam Review

Question 1

What is the Centre of Gravity datum and where can this be found?

Answer 1

The state of balance of an Aircraft as specified in the Certificate of Airworthiness/Flight Manual.

Question 2

Define Basic Empty Weight?

Answer 2

Empty Weight plus optional equipment of an Aircraft.

Question 3

Define Moment Index?

Answer 3

A simplify values in order to work out the Moment of an Aircraft.

Question 4

Define Ramp Weight?

Answer 4

Gross Weight of an Aircraft immediately prior to start-up.

Question 5

Define Specific Gravity?

Answer 5

The ratio of the mass of a given volume of fuel/oil to the same volume of water.

Question 6

What is usually used as the Specific Gravity of the two main grades of AVGAS?

Answer 6

• 0.71.

- 0.69.

Question 7

When can standard passenger weights be used?

Answer 7

Only in Aircrafts with seven seats of more.

Question 8

Why must a CG movement be limited?

Answer 8

To ensure the Elevators and Tailplane can provide a sufficiently large balancing force to maintain adequate control and stability.

Question 9

Expect in an emergency, what is the maximum weight at which an Aircraft can land (2)?

Answer 9

• Landing Weight Structural Limit.

- Landing Weight Performance Limit.

Question 10

What is the maximum weight at which an Aircraft can take off (4)?

Answer 10

• Takeoff Weight Structural Limit.
• Takeoff Weight Performance Limit.
• Maximum Landing Weight plus Fuel Burn-off.
• Maximum Zero Fuel Weight plus Fuel at Takeoff.

Question 11

What important information is included on a Load Data Sheet (3)?

Answer 11

• Basic Empty Weight.
• Empty Weight.
• Centre of Gravity Location.

Question 12

What normally causes the position of the Centre of Gravity to move in flight?

Answer 12

Fuel Burn-off.