Class: DefaultAirspeedIndicatorDataProvider
A default implementation of AirspeedIndicatorDataProvider.
Implements
Constructors
constructor
• new DefaultAirspeedIndicatorDataProvider(bus, adcIndex, options, aoaDataProvider?, trendInputSmoothingTau?, trendTrendSmoothingTau?): DefaultAirspeedIndicatorDataProvider
Constructor.
Parameters
| Name | 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
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:234
Properties
airspeedAlerts
• Readonly airspeedAlerts: Subscribable<number>
The current active airspeed alerts, as bitflags.
Implementation of
AirspeedIndicatorDataProvider.airspeedAlerts
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:164
iasKnots
• Readonly iasKnots: Subscribable<number>
The current indicated airspeed, in knots.
Implementation of
AirspeedIndicatorDataProvider.iasKnots
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:121
iasTrend
• Readonly iasTrend: Subscribable<number>
The current airspeed trend, in knots.
Implementation of
AirspeedIndicatorDataProvider.iasTrend
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:145
isAirspeedHoldActive
• Readonly isAirspeedHoldActive: Subscribable<boolean>
Whether an airspeed hold mode is active on the flight director.
Implementation of
AirspeedIndicatorDataProvider.isAirspeedHoldActive
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:160
isDataFailed
• Readonly isDataFailed: Subscribable<boolean>
Whether airspeed data is in a failure state.
Implementation of
AirspeedIndicatorDataProvider.isDataFailed
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:179
isOverspeedProtectionActive
• Readonly isOverspeedProtectionActive: Subscribable<boolean>
Whether autopilot overspeed protection is active.
Implementation of
AirspeedIndicatorDataProvider.isOverspeedProtectionActive
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:168
isUnderspeedProtectionActive
• Readonly isUnderspeedProtectionActive: Subscribable<boolean>
Whether autopilot underspeed protection is active.
Implementation of
AirspeedIndicatorDataProvider.isUnderspeedProtectionActive
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:172
mach
• Readonly mach: Subscribable<number>
The current mach number.
Implementation of
AirspeedIndicatorDataProvider.mach
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:129
machToKias
• Readonly machToKias: Subscribable<number>
The current conversion factor from mach number to knots indicated airspeed.
Implementation of
AirspeedIndicatorDataProvider.machToKias
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:133
normAoaIasCoef
• Readonly normAoaIasCoef: Subscribable<null | number>
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
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:175
overspeedThreshold
• Readonly overspeedThreshold: Subscribable<number>
The current threshold for an overspeed condition.
Implementation of
AirspeedIndicatorDataProvider.overspeedThreshold
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:206
pressureAlt
• Readonly pressureAlt: Subscribable<number>
The current pressure altitude, in feet.
Implementation of
AirspeedIndicatorDataProvider.pressureAlt
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:141
referenceIas
• Readonly referenceIas: Subscribable<null | number>
The current reference indicated airspeed, or null if no such value exists.
Implementation of
AirspeedIndicatorDataProvider.referenceIas
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:149
referenceIsManual
• Readonly referenceIsManual: Subscribable<boolean>
Whether the current reference airspeed was set manually.
Implementation of
AirspeedIndicatorDataProvider.referenceIsManual
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:157
referenceMach
• Readonly referenceMach: Subscribable<null | number>
The current reference mach number, or null if no such value exists.
Implementation of
AirspeedIndicatorDataProvider.referenceMach
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:153
tasKnots
• Readonly tasKnots: Subscribable<number>
The current true airspeed, in knots.
Implementation of
AirspeedIndicatorDataProvider.tasKnots
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:125
tasToIas
• Readonly tasToIas: Subscribable<number>
The current conversion factor from true airspeed to indicated airspeed.
Implementation of
AirspeedIndicatorDataProvider.tasToIas
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:137
Methods
destroy
▸ destroy(): void
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
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:483
estimateIasFromNormAoa
▸ estimateIasFromNormAoa(normAoa): number
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
| Name | 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
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:389
init
▸ init(paused?): void
Initializes this data provider. Once initialized
Parameters
| Name | 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.
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:289
pause
▸ pause(): void
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.
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:438
resume
▸ resume(): void
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.
Defined in
src/garminsdk/components/nextgenpfd/airspeed/AirspeedIndicatorDataProvider.ts:398