Well, one has to remember, that a procedure design, has to take into account all of the worst case factors...
MLW, max bleeds, dirty engine, low end of the CAT approach speed, initiation of missed, pilot/aircraft reaction time...and especially temperature/met conditions.
The plates will likely have one missed approach shown for all CATS as well...
From a design engineer perspective, considering all of the above factors, I find that few twins meet the missed approach climb requirements when EO....
even during actual flight tests of procedures, with an engine at idle to sim EO, it was creative not to violate to missed approach surface (unless you wanted to design an unreasonable DA/MDA...)
If the plates had EO taken into account, you would see some very unreasonable DA/MDA's...if the DA/MDA is near the 200' OCH, ie 250HAT (200' OCH + 50' momentary descent) I would really see little chance of an EO twin not extending into the OCS...
Note the origin (original post) of the missed approach surface..it is NOT end of runway, it is TCH....
Last edited by FlightPathOBN; 26th Dec 2012 at 16:48.