EDTO A380

Question 1

All Engine Operating (AEO) Cruise Speed
The planned cruise speed (or speed schedule) when diverting to an enroute alternate airport with all engines operating,

Answer 1

AEO Cruise Speed - 500kt TAS

Question 2

EDTO Maximum Diversion Distance
The distance derived by flying for the EDTO Maximum Diversion Time at the following speeds (in still air and ISA conditions):

Answer 2

A380: All Engine Operating (AEO) Cruise Speed

Note:
TAS is used for this calculation.

500 kts TAS

Question 3

EDTO Threshold Time

Answer 3

180 minutes for four-engine aircraft.

Note:
The EDTO Threshold Time is nominated as a distance on the OFP in the EDTO Data section.

(So I assume - 500kts x 180 mins = 1500nm)

Question 4

Cargo Fire Suppression System (CFSS) Time Limit

Answer 4

290 minutes (minus 15 mins buffer for max EDTO time)

Question 5

Most Limiting EDTO Significant System (Non-CFSS) Time Limit

Answer 5

360 minutes

Question 6

What is the EDTO maximum diversion distance for A380?

Answer 6

2291nm

Question 7

EDTO time for A380?

Answer 7

275 mins