Class A En Route

Question 1

When does class A en route start / stop

Answer 1

Starts @ 1500ft

Ends @ 1500ft

Question 2

What is the en route safety factor gradients for engine failure

Class A

Answer 2

2 engine aircraft = 1.1%

3 = 1.4%

4 = 1.6%

Question 3

What is the en route safety factor gradients for duel engine failure

Class A

Answer 3

Twin = -
3 = 0.3%
4= 0.5%

Question 4

What is unstable flight in the en route engine failure class A

Answer 4

When thrust is below thrust required

Question 5

What is the level off altitude in the en route engine failure class A

Answer 5

Alt at which thrust will = thrust required

Stabilised condition

Question 6

What is the obstacle clearance required for class A en route in a stabilised condition with engine failure

Answer 6

1000 feet

Question 7

What is the obstacle clearance required for class A en route in a unstable condition with engine failure (drift down)

Answer 7

2000ft

Question 8

What height must you be above a airfield with positive gradient in the en route engine failure class A

Answer 8

1500ft

Question 9

When is fuel jettisoning permitted during the net drift down flight path

Class A

Answer 9

As soon as possible once fuel required to reach alternate speeds it’s required reserves has been calculated

Question 10

What are the en route requirements for a 3 engine aircraft with 2 engines out

Class A

Answer 10

Must be within 90 mins of an alternative

Must clear obstacles by 2000ft

Must be overhead alternative airfield by 1500ft

Question 11

What is ETOPS

Class A

Answer 11

Extended range twin operations

Means a twin can extend operations further than 60 mins away from alternate airport

IF

it has air start APU

ETOPS120 = can be 120 mins from alternate

ETOPS200 = 200 mins

Etc