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JSBSim Engines: Difference between revisions
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** <air-intake-impedance-factor> is the fixed impedance in the air intake system. It is determined by <maxmp> if not supplied. This value is exposed on the property tree so it may be altered at runtime to simulate intake icing, alternate air, etc. | ** <air-intake-impedance-factor> is the fixed impedance in the air intake system. It is determined by <maxmp> if not supplied. This value is exposed on the property tree so it may be altered at runtime to simulate intake icing, alternate air, etc. | ||
* Boost | * Boost | ||
** <boostmanual> whether a multispeed supercharger will manually or automatically shift boost speeds. On manual shifting the boost speeds is accomplished by controlling propulsion/engine/boostspeed | ** <boostmanual> whether a multispeed supercharger will manually or automatically shift boost speeds. On manual shifting the boost speeds is accomplished by controlling propulsion/engine/boostspeed | ||
** <takeoffboost> - | ** <takeoffboost> - Many aircraft had an extra boost setting beyond rated boost, but not totally uncontrolled as in the already mentioned boost-control-cutout, typically attained by pushing the throttle past a mechanical 'gate' preventing its inadvertant use. This was typically used for takeoff, and emergency situations, generally for not more than five minutes. This is a change in the boost control setting, not the actual supercharger speed, and so would only give extra power below the rated altitude. When TAKEOFFBOOST is specified in the config file (and is above RATEDBOOST1), then the throttle position is interpreted as: | ||
*** 0 to 0.98 : idle manifold pressure to rated boost (where attainable) | *** 0 to 0.98 : idle manifold pressure to rated boost (where attainable) | ||
*** 0.99, 1.0 : takeoff boost (where attainable). | *** 0.99, 1.0 : takeoff boost (where attainable). | ||