Originally Posted by
FlyingStone
The engine out acceleration height.
Applying Airspeed Unreliable memory items could severely reduce your climb performance, and it’s good to at least clear the 2nd segment beforehand.
Why mix up two different scenario's?
The engine out acceleration height is related to a worst case engine failure at V1. In those cases the acceleration height is related to an engine out procedure. SIDs and engine out tracks are frequently not the same. An SID comes with a "normal" acceleration height.
The acceleration height is not a fixed value. If you're capable of flying the normal SID, the normal acceleration height should work fine. If you doubt your climb performance there is nothing wrong with adapting the acceleration height to the MSA. If you have an engine failure together with airspeed unreliable and you're able to fly the engine out track, the acceleration height is the engine out acceleration height.
But this is interesting, because the memory items for unreliable airspeed are based on fully functional engines. Airspeed unreliable memory items with an engine failure will make you crash. You need 12° and TOGA. Nothing more, nothing less. 15° will make you lose airspeed and crash in many cases, 10° will make you hover. So don't mix engine out procedures with basic unreliable airspeed situations.