The AI-only planes fly a relaxed FM. I emailed Oleg once why not run them with small & fast table-driven FM? Then they would fly within limits and be predictable moves for AI computing. I guess he didn't like the idea. So when you hack an AI-only plane, it's a UFO.
The rest of the planes have the same FM with different parameter sets, the parameters being factors for equations not end-speed/height/etc of table-driven sims.
The FM seems to climb a bit easily. Find the slowest you can go at level flight, it will be at low power. For the P-40B I can hold 1000m alt with about 32% power pedal-dancing along flaps and gear up about 145kph. The level-flight power curve U left side only goes 32% high.
If I hold that speed and bring the throttle up, I climb quite well and very steep but can't get out of my own way for lack of speed.
The FM and data set is an approximation of flight that runs as the heart of a game with much going on. It's not going to fit charts without some stretching and balancing that all compared does have some weird spots. But they are spots, differences between chart and game rather than cracks where the game has new or different properties. I don't see any canning of stall behavior either, the FM is a very robust code and data engine.
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