Yup, it can take a while but it's worth it to avoid damaging the engines. Granted, this is from going from the cold start scenario where your oil temp is well below zero. If you push your engines too hard with cold oil you'll start blowing oil lines due to the extremely high pressure (learned that the hard way before lol).
And like I said, I haven't had any problems keeping the carbs warm with the filters off above 10k as long as they have been prewarmed, intercoolers are to hot, and manifold is set to about 33" with the turbos at 8. It seems like a high turbo setting, but in the extreme temperature it's needed to keep them from freezing. If you have your copilot handle intercoolers, sit in his seat and watch what happens once you get to altitude: He'll keep the intercoolers at 0% until carb temps start to get high, and then he'll crack them to 1%. The air is so cold (sometimes -45C) that the carb temp drops down to 12C within seconds. In short, let him handle the intercoolers to decrease the chance of one accidentally icing up.
Honestly, I watched this YouTube channel to learn how to properly run the engines and deal with emergencies. The channel has a full playlist of actual Department of Army B-17 training films. https://www.youtube.com/watch?v=mzcP1IYHJmc
Thank you for that. Fantastic set of vintage videos there.
Sounds like I *want* to push the engines hard to cause failures so I can see how it all works. This is a sim after all. I doubt I'll be sitting there for 10 minutes for warmup, I like to get up in the air fast.
I'll set the environment to super cold see how it all goes. This is the beauty of a sim, we can do all these things and even take off from the Apron (which I often do)
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