For example comparing the following briefings (unrealistic values generated only for the purpose of demonstrating current behavior):
ZFW 13500 PLNTOF 7446 ADDFU 0 EXTRA / POSS 917T
ZFW 13331 PLNTOF 8552 ADDFU 1000 EXTRA / POSS 0T
…the payload/ZFW was reduced so all 1000kg of extra fuel could be added. For contingency and reserve fuel, which are legal requirements, this makes sense, but in case of extra fuel, it may be more useful to prioritize payload if possible?
The way I envision this being used would be, for example:
- set payload, performance schedules, routing, contingency and reserves as required
- set a high amount of extra fuel (e.g. 60 minutes)
- RESULT briefing with maximum amount of extra fuel that can be carried without reducing payload
Currently, payload may be reduced to fit the extra fuel, so I have to re-generate the flight, reducing extra fuel as many times as required until payload doesn’t get reduced.
I do realize that for the maximum extra fuel carried without payload reduction, I could simply add the POSS EXTRA figure to the block fuel; I’m looking for a way for the extra fuel to be specifically featured in the briefing itself (along with the corresponding duration in minutes, which is “easier” for SimBrief to compute than myself).
I imagine there may be other requirements as to why it’s done the current way, however.