Class: WT21VnavUtils

Defined in: workingtitle-instruments-wt21/shared/Navigation/WT21VnavUtils.ts:31

Utils for WT21 VNAV

Constructors

Constructor

new WT21VnavUtils(): WT21VnavUtils

Returns

WT21VnavUtils

Methods

calculateDescentAdvisoryDistance()

static calculateDescentAdvisoryDistance(startingAltitude, destinationAirfieldElevation, vpa): number

Defined in: workingtitle-instruments-wt21/shared/Navigation/WT21VnavUtils.ts:42

Calculates the distance from the airport at which to show the DES ADVISORY, given a vpa

Parameters

Parameter	Type	Description
startingAltitude	number	the starting altitude of the aircraft (cruise alt) in Feet
destinationAirfieldElevation	number	elevation of the destination airfield in Feet
vpa	number	the vertical path angle of the descent (TODO check if this is actually used here)

Returns

number

DES advisory distance in metres

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updateDesAdvisoryDetails()

static updateDesAdvisoryDetails(details, lateralPlan, lnavTrackingLegIndex, lnavLegDistanceAlong, lnavLegDistanceRemaining, desAdvisoryDistanceFromEnd): void

Defined in: workingtitle-instruments-wt21/shared/Navigation/WT21VnavUtils.ts:60

Edits a DesAdvisoryDetails object to contain up-to-date information about a DES advisory point

Parameters

Parameter	Type	Description
details	ObjectSubject<DesAdvisoryDetails>	ObjectSubject for a DesAdvisoryDetails
lateralPlan	FlightPlan	lateral flight plan to use for calculations
lnavTrackingLegIndex	number	LNAV tracking leg index
lnavLegDistanceAlong	number	LNAV distance along tracked leg, in metres
lnavLegDistanceRemaining	number	LNAV distance remaining along tracked leg, in metres
desAdvisoryDistanceFromEnd	number	DES advisory distance from destination, in metres

Returns

void