Class: DefaultAirspeedIndicatorDataProvider

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:35

A default implementation of AirspeedIndicatorDataProvider.

Implements

• AirspeedIndicatorDataProvider

Constructors

Constructor

new DefaultAirspeedIndicatorDataProvider(bus, adcIndex, options, aoaDataProvider?, trendInputSmoothingTau?, trendTrendSmoothingTau?): DefaultAirspeedIndicatorDataProvider

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:159

Constructor.

Parameters

Parameter	Type	Default value	Description
bus	EventBus	undefined	The event bus.
adcIndex	number | Subscribable<number>	undefined	The index of the ADC that is the source of this provider's data.
options	Readonly<AirspeedIndicatorDataProviderOptions>	undefined	Configuration options for this provider.
aoaDataProvider?	AirspeedAoaDataProvider	undefined	A provider of angle of attack data.
trendInputSmoothingTau?	number	DefaultAirspeedIndicatorDataProvider.DEFAULT_IAS_TREND_INPUT_SMOOTHING_TAU	The smoothing time constant, in milliseconds, to apply to the IAS lookahead trend's input values. Defaults to 2000 / ln(2).
trendTrendSmoothingTau?	number	DefaultAirspeedIndicatorDataProvider.DEFAULT_IAS_TREND_TREND_SMOOTHING_TAU	The smoothing time constant, in milliseconds, to apply to the IAS lookahead trend values. Defaults to 1000 / ln(2).

Returns

DefaultAirspeedIndicatorDataProvider

Properties

airspeedAlerts

readonly airspeedAlerts: Subscribable<number>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:85

The current active airspeed alerts, as bitflags.

Implementation of

AirspeedIndicatorDataProvider.airspeedAlerts

---

bus

readonly bus: EventBus

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:160

The event bus.

Implementation of

AirspeedIndicatorDataProvider.bus

---

iasKnots

readonly iasKnots: Subscribable<number>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:42

The current indicated airspeed, in knots.

Implementation of

AirspeedIndicatorDataProvider.iasKnots

---

iasTrend

readonly iasTrend: Subscribable<number>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:66

The current airspeed trend, in knots.

Implementation of

AirspeedIndicatorDataProvider.iasTrend

---

isAirspeedHoldActive

readonly isAirspeedHoldActive: Subscribable<boolean>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:81

Whether an airspeed hold mode is active on the flight director.

Implementation of

AirspeedIndicatorDataProvider.isAirspeedHoldActive

---

isDataFailed

readonly isDataFailed: Subscribable<boolean>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:100

Whether airspeed data is in a failure state.

Implementation of

AirspeedIndicatorDataProvider.isDataFailed

---

isOverspeedProtectionActive

readonly isOverspeedProtectionActive: Subscribable<boolean>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:89

Whether autopilot overspeed protection is active.

Implementation of

AirspeedIndicatorDataProvider.isOverspeedProtectionActive

---

isUnderspeedProtectionActive

readonly isUnderspeedProtectionActive: Subscribable<boolean>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:93

Whether autopilot underspeed protection is active.

Implementation of

AirspeedIndicatorDataProvider.isUnderspeedProtectionActive

---

mach

readonly mach: Subscribable<number>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:50

The current mach number.

Implementation of

AirspeedIndicatorDataProvider.mach

---

machToKias

readonly machToKias: Subscribable<number>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:54

The current conversion factor from mach number to knots indicated airspeed.

Implementation of

AirspeedIndicatorDataProvider.machToKias

---

normAoaIasCoef

readonly normAoaIasCoef: Subscribable<null | number>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:96

The correlation coefficient between a given normalized angle of attack and the estimated indicated airspeed in knots required to maintain level flight at that angle of attack for the current aircraft configuration and environment, or null if such a value cannot be calculated.

Implementation of

AirspeedIndicatorDataProvider.normAoaIasCoef

---

overspeedThreshold

readonly overspeedThreshold: Subscribable<number>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:128

The current threshold for an overspeed condition.

Implementation of

AirspeedIndicatorDataProvider.overspeedThreshold

---

pressureAlt

readonly pressureAlt: Subscribable<number>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:62

The current pressure altitude, in feet.

Implementation of

AirspeedIndicatorDataProvider.pressureAlt

---

referenceIas

readonly referenceIas: Subscribable<null | number>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:70

The current reference indicated airspeed, or null if no such value exists.

Implementation of

AirspeedIndicatorDataProvider.referenceIas

---

referenceIsManual

readonly referenceIsManual: Subscribable<boolean>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:78

Whether the current reference airspeed was set manually.

Implementation of

AirspeedIndicatorDataProvider.referenceIsManual

---

referenceMach

readonly referenceMach: Subscribable<null | number>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:74

The current reference mach number, or null if no such value exists.

Implementation of

AirspeedIndicatorDataProvider.referenceMach

---

tasKnots

readonly tasKnots: Subscribable<number>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:46

The current true airspeed, in knots.

Implementation of

AirspeedIndicatorDataProvider.tasKnots

---

tasToIas

readonly tasToIas: Subscribable<number>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:58

The current conversion factor from true airspeed to indicated airspeed.

Implementation of

AirspeedIndicatorDataProvider.tasToIas

---

underspeedThreshold

readonly underspeedThreshold: Subscribable<number>

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:132

The current threshold for an underspeed condition.

Implementation of

AirspeedIndicatorDataProvider.underspeedThreshold

Methods

destroy()

destroy(): void

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:411

Destroys this data provider. Once destroyed, this data provider will no longer update its provided data, and can no longer be paused or resumed.

Returns

void

---

estimateIasFromNormAoa()

estimateIasFromNormAoa(normAoa): number

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:317

Estimates the indicated airspeed, in knots, required to maintain level flight at a given normalized angle of attack value for the current aircraft configuration and environment. Normalized angle of attack is defined such that 0 equals zero-lift AoA, and 1 equals stall AoA.

Parameters

Parameter	Type	Description
normAoa	number	A normalized angle of attack value.

Returns

number

The estimated indicated airspeed, in knots, required to maintain level flight at the specified angle of attack, or NaN if an estimate cannot be made.

Implementation of

AirspeedIndicatorDataProvider.estimateIasFromNormAoa

---

init()

init(paused): void

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:217

Initializes this data provider. Once initialized

Parameters

Parameter	Type	Default value	Description
paused	boolean	false	Whether to initialize this data provider as paused. If true, this data provider will provide an initial set of data but will not update the provided data until it is resumed. Defaults to false.

Returns

void

Throws

Error if this data provider is dead.

---

pause()

pause(): void

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:366

Pauses this data provider. Once paused, this data provider will not update its data until it is resumed.

Returns

void

Throws

Error if this data provider is dead.

---

resume()

resume(): void

Defined in: src/garminsdk/components/nextgenpfd/airspeed/DefaultAirspeedIndicatorDataProvider.ts:326

Resumes this data provider. Once resumed, this data provider will continuously update its data until paused or destroyed.

Returns

void

Throws

Error if this data provider is dead.