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Showing results for tags 'jet performance'.
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I'm not sure what tags apply here. I'm tuning my Eve engine add-on. Unlike rockets where you can mess with the nozzle to deal with higher ambient pressure, jets have to draw and exhaust that higher pressure air. I do know that jet engine specific impulse doesn't change. What I don't know is if thrust would be better or worse with thicker air, though. And there's the consideration that I might not need as much speed in thicker air to get as much lift, so I wouldn't need as much thrust. Maybe I want a pressure-based governor. I am trying out NASA's jet engine calculators and their EngineSim simulator but they seem designed starting with 101.3 kPa air and don't seem to have settings for higher ambient pressure. Assume an older, simpler jet engine like the Junkers Jumo that powered the Me262 is in use, and assume an earth-like atmosphere but higher ambient pressure. What effect would higher pressures have on this engine? Assuming it doesn't come apart, or melt. Intuitively I'm thinking this would give more thrust at speeds below Mach 0.5 at first, since it would pull and exhaust more air.
