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Implementing VNAV support in FlightGear: Difference between revisions
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Implementing VNAV support in FlightGear (view source)
Revision as of 02:13, 6 December 2013
, 6 December 2013→VNAV
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* VNAV automatically selects altitude targets and speed targets according to pilot MCP entries and the altitude and speed constraints in the FMS flightplan. | * VNAV automatically selects altitude targets and speed targets according to pilot MCP entries and the altitude and speed constraints in the FMS flightplan. | ||
* VNAV automatically selects pitch and thrust control modes to fly to the targets. For example during descent, VNAV chooses between a FLCH descent, a vertical speed (fixed rate-of descent), and an FMS path descent. In the case where VNAV selects vertical speed control mode, VNAV also selects the vertical speed target. | |||
* for the descent and approach, VNAV automatically provides an optimum path that is used as the reference for all automated altitude/speed target and control mode selections. | |||
* VNAV | FMS VNAV Rules: | ||
*VNAV does not function until all PERFORMANCE INIT information has been programmed into the CDU | |||
*VNAV is available for all phases of flight | |||
*VNAV never passes through the altitude pre-selector | |||
*VNAV keeps the aircraft as high as possible for as long as possible | |||
*VPATH angles are from 1 to 6 degrees | |||
The typical VNAV function automatically chooses the active altitude target from a possible list of sixteen, and chooses the active speed target from a possible list of twenty-six. | |||
For more info, see: | For more info, see: | ||