Automated prop / automated mixture on/off in German fighters. Extra keys for Bf-109 prop pitch and mixture (can't be assigned to axis) IL-2 Sturmovik: Birds of Prey features hundreds of airplanes taking part in air battles. Players can see real time damage to the aircraft such as holes in the wings and trail lines during dog fights. airbrake (in Stuke and Pe-2) and Stuka siren (can be assigned to the same key) IL-2 Sturmovik: Birds of Prey also boasts an all new damage effects engine as well as advanced environmental visuals enriching the game play. oil radiator (along with water radiator from RoF) trims (three pairs of keys, even if you mostly use two) and stabiliser (best assigned to axis) Things you need to find room for (in order as assigned to my devices) include In my Saitek throttle, radiator has to make room for prop pitch and mixture lever had to double as stabiliser. In BoS, important axes are throttle, propeller pitch and pick your third from mixture, two radiators and adjustible stabiliser. In RoF the three important axes are throttle, radiator and mixture doubling as altitude throttle. Most ROF commands have BoS equivalents and I have copied most of my RoF bindings into BoS to keep it intuitive - RoF engine start to BoS engine start, RoF drop bombs to BoS drop bombs, RoF machine guns fire to BoS cannons fire, RoF machine guns reload to BoS machine guns fire, RoF lobby to BoS rockets fire, RoF blip switch to BoS wheel brakes… oh, wait, I just had to change it. The default key settings seem to be the same (with exception of command that hide icons / HUD gauges).

Il 2 sturmovik 1946 key bindings