FE Hoppy:
Quote:
I'd like to know on what basis any OEI procedure has the aircraft not clean and VFTO by the time the 5/10 minutes is up? The only one I can think of is a wrongly calculated take off weight.
Think of a maximum takeoff weight at a high pressure altitude on a hot day, a very high (well above standard) MFRA, with extended turns to enable you to establish on a straight and level segment prior to acceleration. This is the same reason why the 10 minutes if offered to some operators because they NEED it. In EU-area, generally and in terms of performance issues, terrain does not pose many problems, but in other areas of the world this can be more challenging.
No.
Firstly, there are plenty of terrain limited runways in the EU thanks. Also some of us have operated in many other parts of the world.
Now I ask again. When is a take of weight ever calculated based on the presumption that the aircraft will not be correctly configured at the end of the take off thrust time limit?
Correct answer: never.