g450cpt:
I don't want to sit here and argue whether Terps is AEO, because that is not what I meant in my previous post.
TERPS presumes all engines operating.
The problem with an assessment of a SID by other than a professional engineering department is two-fold:
1. Ths SID requires a constant gradient (slope) to a specified altitude, the Part 25 OEI takeoff flight path requires a clean-up segment, which may or may not "bump" into the SID's constant slope.
2. The SID's lateral airspace splays to an area wider than required by AC120-91, which invokes an unneccsary, sometime onnerous penality with OEI and by using a SID rather than a special OEI procedure. Then, in other cases the SID's wider lateral splays may not make a difference. Only a performance specialist can determine that and only if he/she is very conversant in TERPS and PANS-OPS.