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Old 21st Jun 2017, 05:42
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underfire
 
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35' is the requirement after losing thrust on 1 engine, nest ce pas?
35' for a dry runway, 15' for a wet cert ac on a wet runway.

In regards to obstacles, the OCA is the same, there is not a difference between all engine and EO clearance areas. The area assume a min perf gradient

In the event of an engine failure, continued adherence to departure procedures may not be possible as SIDs or DPs do not necessarily assure that engine-out obstacle clearance requirements are met.
The most common procedure to maximize takeoff weight when significant obstacles are present along the normal departure route is to use an EOSID in the event of an engine failure on takeoff. If the EOSID routing is different from a SID or DP, then the obstacles along this track are used to determine the maximum allowable takeoff weight for that runway. Note that often the path of the EOSID will not overfly the area where the aerodrome operator has provided an obstacle survey.


Net climb min requirements are the same, EO or not. Up to performance guys to make sure EO perf meets the min. OCA. This typically means weight limiting the ac to meet the SID path when OE, because the obstacles have been evaluated along this corridor.

Can be EO, above temp..whatever, the obstacle clearance area is the same for all.

As a note: Some airlines have purchased specific high temp and/or EO procedures that include obstacle analysis based on ac performance, rather than limiting loading based on the criteria min climb or temperatures

Last edited by underfire; 21st Jun 2017 at 05:57.
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