OPT

Question 1

When do you need to calculate Landing Dispatch Performance?

Answer 1

• MEL / CDL items
• Destination or Alternate are forecast to be contaminated
• NOTAM reduces runway length
  Dispatch not allowed if planned landing weight exceeds dispatch landing weight.
  FCTM Appendix

Question 2

When do you need to recalculate OPT if Final differs from Prelim?

Answer 2

• TOW exceeds OPT Full or TOW +600kg ATM
• Mac Tow differs by 3%

Question 3

Engine shut down do we use 2 rev inop?

Answer 3

• No 2 inop is the same as no reverser as the OPT does not know if the two inop are symmetrical or not.

Question 4

Do you use Good to Med or actual contaminate?

Answer 4

• Actual Contaminate
• Actual contaminate includes reduced acceleration and reduced breaking action.
• Good/Med only breaking action