The bombers have some interesting details since they're bigger and there's more stuff to model.
For example, using the "open canopy" command has a different effect in many cases, depending on the position you're sitting.
In the He111 you can open the pilot's top panel forward (like a windshield) and raise your seat (there's a separate command for that) to get a better view during taxi and take-off, just like it was possible to do historically.
Also, i seem to remember that the radiators need engine power to function. This means that you start your engines with the radiators shut and as soon as you start them you have to quickly open your rads.
Another example is the Blenheim. Switching to the turret position and pressing your "open canopy" keys will open a hatch forward of the turret. If you switch to external view and look through it, you can see the reconnaissance camera inside the aircraft.
Also, the turret doesn't move when you're on the ground with the engines switched off, you can't even toggle it between parked/cruise and firing position. The real Blenheim had an engine driven hydraulic pump, but it was not powerful enough to drive all systems at once. The pilot had a hydraulics selector, he would use it to power the gear and flaps during takeoff/landing, set it to off to prevent the pump from overheating during cruise and finally, set it to power the turret when nearing dangerous airspace.
So while the hydraulic controls are not modeled, the limitations of the system are automatically taken into account.
There's loads of subtle features like these (which are often confused for bugs when they are in fact exact representations of the actual aircraft's systems) that add quite a bit of character to each aircraft. It's one of my favorite aspects in the sim and the reason i get irritable when 9 out of 10 people only think in terms of graphics and direct ports of features from IL2, while there's so much undiscovered detail and capabilities of the new engine right beneath their noses
