Currently we have:
1. Climb Ratio
2. Speed
It would be very nice to have following additional graphs:
1. Immediate turn ratio vs speed and altitude
2. Sustained turn ratio vs speed and altitude
3. Straight line acceleration vs speed and altitude
4. Roll ratio vs IAS.
Also if we could have such graphs for different loads, for example B-17 has very different climb performance depending on its bomb-load.
