Climb Limited Takeoff Mass

Question 1

What does CLLTOM depend on

Answer 1

The climb limited take-off mass depends on pressure altitude and OAT.

Question 2

Effect of increasing flap setting

Answer 2

Increasing flap increases the parasite drag which degrades the climb gradient and thus the CLTOM decreases.

Question 3

Relation to wind

Answer 3

Independent of wind.

It is an AIR GRADIENT requirement under the certification specifications. Look at Fig 4.5 in CAP 698, the Climb Limit graph. There is no wind input!

Question 4

Performance Limited Mass

Answer 4

It is the lowest of the FLLTOM, the CLTOM or the OLTOM.