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(→VNAV for the 777: http://forum.flightgear.org/viewtopic.php?f=40&t=13777&p=140255&hilit=performance+vnav#p140258) |
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== VNAV for the 777 == | == VNAV for the 777 == | ||
First part of VNAV is the control of vertical movement of the aircraft. | |||
Second and more important part of that is "to predict and optimize the vertical path. Guidance includes control of the pitch axis and control of the throttle." and the other fancy stuff it can do today to optimize the flight - but only in combination of a FMS/FMC | |||
The 777 and the Citation X doesn't even use the VNAV in their simplest way by just targeting the altitude or using FLC-mode. (We even don't have a correct FLC-Mode implemented yet!!) Even if we have a realistic FMS- it would be useless without a correct Autopilot. | |||
* http://data.air.cc/upload/doc/20110309/12cE302X362-1b7.pdf | * http://data.air.cc/upload/doc/20110309/12cE302X362-1b7.pdf | ||
* http://www.smartcockpit.com/data/pdfs/plane/boeing/B777/systems/B777-Automatic_Flight.pdf | * http://www.smartcockpit.com/data/pdfs/plane/boeing/B777/systems/B777-Automatic_Flight.pdf | ||