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Old 5th September 2007 | 23:47
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AxelF
 
Joined: Aug 2007
Posts: 8
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From: Chile
Some Etops Help

Hello..

ETOPS;

Rule time 90-120-180
Engine Out Speed just one for Example: 450Kts
With this data you can create Etops Aera Operation Wind=0

Easy...

Last Airport that cover 60Minutes = 450NM you are None ETOPS Area

Then you have a route where the airport range 450NM doesn´t cover the route. You need to extend that area for 90Minutes/675NM or 120Minutes/900NM.

Then you have a suitable aiport for ETOPS within that distance range, remember 675NM or 900NM Wind=0.

ETP Will be the equal time point between the ETOPS Airports.

When you run a Flight plan check the distance from ETP to Airport 1 and ETP Distance to Airport2 that will the same (Equial time/Distance Point), Because the real plan has wind if wind=0 then Time=Distance.

Also that distance will be within the range calculated in the ETOPS Area Operation.

For 90Minutes < 675NM
For 120Minutes < 900NM

I Hope this help your question.

Confirm if you agree and understand?

All the Best.

Axel Fuentes
Consultant Flight Operations
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