Ever since the release of global I’ve enjoyed flying the fighters cross country. Through trial and error I’ve learned how to get the longest range. To help everyone else out I thought I’d show what I’ve learned in some graphs to better explain. The F-22, F-16 and F-14 have different values but the graphs have the same trends. The F-18 seems to have a different basic flight model origin so I’ll ingnore in here.
Here you can see the fuel flow in the F-16 increases at the same rate until 90%n1 then increases at a new higher rate.
Below you can see that ground speed increases as you raise the n1%.
Since we know the fuel capacity we can calculate the range.
You can see that you get your best range at 90% n1 but the improvement between 80% to 90% is less than from 70% to 80%.
Below is the optimum altitude testing results I got in the F-22. Although I didn’t collect data for the F-14 or the F-16 I believe they will show the same altitude trend.
Please forgive the noise in the data. It’s hard to keep out all the variables. But you can still see the trend.
It’s also far more efficient to shut off one engine. You cut your fuel flow in half and only cut your ground speed by about 25%.