Hello guys
Here is the question
A friend of mine, deeply intersted in military flight sims (i.e. IL2 from Maddox interactive) Try to establish the various climb perfs of the different A/C flyable in this game.
He defined a "test program" for all A/C as followed :
Fly the A/C at 400 Km/h at 500 m alt, start a timer and pull on the stick to maintain 350 Km/H TAS through a 1000 m gain of altitude, then stop the watch.
In the end of the day, he comes with different figures, supposed to reflect the differences betwen the virtual fighters.
My opinion on this one, is that it cannot display the real capabilities of the A/C's since they are not flown at their respective Vy's, and also that he is wrong to use TAS , since a climb is maintained at IAS, for obvious reason.
The methodology he should use, I think , should be :
1), Establish Vy for the considered A/C
2) Fly the A/C level at low alt, until max IAS is attained
3) Start the watch meanwhile pulling the stick to hold Vy
4) Check time and VSI at various altitudes until Absolute ceiling is reached
5) Plot performance
One thing am not sure about :
Does your Vy varies with great changes of altitude ?
When am looking in my Seneca 2 POH, the only Vy recommended is 89 Knots, throughout all climb til FL240 ...Am therefore led to think he should stick with an Indicated Vy for a simulated Turbocharged piston A/C ...
Anybody on this one
Comments from pilot with military background much appreciated !
