Vivian Meazza wrote:
I don't think that's intrinsically very difficult to simulate right now. When certain conditions are met, if carb heating is off, weaken the mixture over time (until the engine stops?). If carb heating is on enrich the mixture over time until power is restored. The conditions are actually aircraft and engine specific, I think, but a general solution might be near enough for government work.
With carb ice, the engine dies from an excessively rich mixture (all fuel, no air), not an excessively lean one. The best way to simulate an ice blockage would be to reduce maximum available manifold pressure and let the piston engine model work out the rest.
When there is no actual carb ice, carb heat makes the intake air hotter, and thus thinner, so the mixture also becomes richer (more fuel, less air), but in this case not usually rich enough to stop the engine.
The normal rule of thumb is that applying carb heat will decrease your power, but that's not true for those of us who fly lean of peak.
Pitot head icing is another candidate. Actually it's so obvious, I wonder if someone will tell us that it is already an intrinsic function?
We don't actually have code to create pitot ice (or melt it when pitot heat is on), but you can simulate pitot icing by setting the /systems/pitot/serviceable property to 'true'. You can also use /systems/static/serviceable to simulate a static-port blockage, /systems/electrical/serviceable to simulate an electrical failure (battery and alternator, I guess), and /systems/vacuum[n]/serviceable to simulate a failure of a vacuum pump. All of the instruments should respond more-or-less realistically to the failure.
All the best,
David
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