- Yes
- No
An E-M diagram, the E-M standing for Energy-maneuverability, is what is sounds like. Its a concise way of portraying the energy, maneuverability, velocity, etc, of a given flight model. This is especially useful for conveniently comparing multiple aircraft, often simutaniously.
In the above example for the MiG-21 at 5000 ft, you can see a lot of information that is not readily available in War Thunder’s current stat card, or anywhere else with out testing really. This is also useful (if implemented right), for discrepencies between real life performance and in-game performance. My hope is it shouldn’t be hard to build these for all or most of the aircraft using in-game values and data. So say you clicked on an aircraft in the tech tree, and in that menu there would be something like “Performance analysis”, and takes you to a menu, like the protection analysis does, and you input an altitide, and the game calculates the graph for that plane. And similarily to protection analysis, you also have the option to choose another plane and compare, by overlaying the graphs.
There are also things that are new when comparing aircraft. Like The ability to heat map which plane is losing/gaining energy over the other at a certain speed and rate. Here are some videos to help explain everything about them better.
Why would players want this? Well it gives much insight on how to combat other planes and which ones you outright have no chance against. If you don’t think so watch another one of CatWerfer’s videos: https://www.youtube.com/watch?v=jfu6z8eGZ5E. CatWerfer pretty much sparked this idea (and carried it as I’m not the best explainer nor writer).
I think a lot of players would want this if they knew about them, which an in-game tutorial for reading them would be amazing for.