Originally Posted by
Ludicrous Speed
.. I was actually correct in my interview because the way the question was presented to me included that the performance gave the same flap setting. With the same flap setting, V2 would indeed stay the same as it is indeed weight dependent.
No, it may not. The concept here is "improved climb". Runway length is one thing, but obstacles are an even bigger player, even though we pilots don't normally "see" them in terms of number crunching.
I used to work these numbers for a simple airline flying fairly simple equipment. I have drawn a lot of lines on AOC charts. There are many compromises made to generate simple weight cards, and very few operators are willing to make them anymore. Certainly not any heavy equipment operators.
Everything above the regulatory relationships to Vmca and Vmcg is a variable. Everything. And be wary of anyone who uses the term "Optimal". Optimal for the engine manufacturer, the guy buying the fuel and the pilot with a couple of kids at home are often 3 different things.