The Cruise

Question 1

AFT CG (Trim Drag/fuel consumption)

Answer 1

Less trim drag due to less moments produced/less fuel burn - greater S+L max speed

Question 2

Forward CG (trim drag/S+L max speed/fuel consumption)

Answer 2

Greater trim drag
Reduced S+L max speed
Fuel consumption up

Question 3

Max S+L with TAS

Answer 3

At higher level

Question 4

Max S+L speed with IAS

Answer 4

Low level

Question 5

Max S+L with altitude increase

Answer 5

Less thrust moves the intersection of thrust drag curve to the left
Reduced S+L max speed at high altitude with CAS

Question 6

Maximum horizontal speed occurs at

Answer 6

The maximum thrust being equal to the total drag - drag vs speed graph top right hand side