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GPS Tips and TricksGPS Tips and Tricks

Presented byPresented byJim PitmanJim Pitman

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ScheduleSchedule

9:159:15 GPS BasicsGPS Basics

9:509:50 Andrew Eagleton – Phoenix PDAndrew Eagleton – Phoenix PD

10:0010:00 Short Break – Sign Wings CardsShort Break – Sign Wings Cards

10:1010:10 Interactive DemosInteractive Demos

10:4010:40 Using GPS in the Real WorldUsing GPS in the Real World

11:0011:00 Closing Remarks - UBSClosing Remarks - UBS

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OverviewOverview

Develop a good understanding of how to use your Develop a good understanding of how to use your particular GPS unitparticular GPS unit

Before learning the specific functions, there are Before learning the specific functions, there are several basic GPS concepts that are important to several basic GPS concepts that are important to understandunderstand

After learning the basics, you can focus on the After learning the basics, you can focus on the details that will be important to the type of flying details that will be important to the type of flying you are doingyou are doing

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How It WorksHow It Works GPS is one type of area GPS is one type of area

navigation (RNAV)navigation (RNAV)

GPS uses time/speed GPS uses time/speed calculations to determine calculations to determine distance from several distance from several satellitessatellites

Because the GPS unit Because the GPS unit knows precisely where it knows precisely where it isis and where it and where it waswas, it is able , it is able to calculate where it is to calculate where it is going to begoing to be

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TerminologyTerminology

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AccuracyAccuracy

SA = Selective Availability

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The Fancy StuffThe Fancy Stuff The internal database allows the The internal database allows the

GPS unit to perform basic GPS unit to perform basic calculations that provide a calculations that provide a wealth of information and wealth of information and features, including:features, including:

• Ground speedGround speed

• Current and desired ground Current and desired ground trackstracks

• Time, speed, and distance to Time, speed, and distance to any waypointany waypoint

• ETE, ETAETE, ETA

• Nearest airport, NAV aid, Nearest airport, NAV aid, intersection, SUA, ARTCC, FSSintersection, SUA, ARTCC, FSS

• Ability to create and store flight Ability to create and store flight plansplans

• And much more!And much more!

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LimitationsLimitations

Not available everywhereNot available everywhere

Not available all the timeNot available all the time

Check GPS NOTAMSCheck GPS NOTAMS

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Distance InformationDistance Information

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AutosequencingAutosequencing

TO-FROM navigationTO-FROM navigation

TO-TO navigationTO-TO navigation

When you want When you want autosequencingautosequencing

When you don’t want When you don’t want autosequencingautosequencing

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Degrees vs. DistanceDegrees vs. Distance

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CDI CDI sensitivitysensitivity

Enroute = 5 NM

Terminal = 1 NM

Approach = 0.3 NM

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Receiver Autonomous Receiver Autonomous Integrity Monitoring Integrity Monitoring

((RAIM)RAIM) There are generally two types of RAIM There are generally two types of RAIM

messages:messages:

1.1. Not enough satellites available to provide Not enough satellites available to provide RAIMRAIM

2.2. A potential error that exceeds the limit for A potential error that exceeds the limit for the current phase of flightthe current phase of flight

Perform RAIM predictionsPerform RAIM predictions

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Baro-AidingBaro-Aiding

Requires pilot to set the Requires pilot to set the current altimeter current altimeter setting in the GPS unitsetting in the GPS unit

Allows RAIM without as Allows RAIM without as many satellites in viewmany satellites in view

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VFR GPS vs. IFR GPSVFR GPS vs. IFR GPS

Handheld unitsHandheld units

Panel mounted unitsPanel mounted units

IFR approaches are IFR approaches are simply pre-loaded flight simply pre-loaded flight plans that are based on plans that are based on approved instrument approved instrument approach proceduresapproach procedures

Requirements for IFR useRequirements for IFR use

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Phoenix Police Air Support UnitPhoenix Police Air Support Unit

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10 Minute Break10 Minute Break

Be sure to get your Wings Be sure to get your Wings cardcard

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2020

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www.asa2fly.com

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Live GPS DemosLive GPS Demos

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Inflight ConsiderationsInflight Considerations

Flight PlanningFlight Planning

Navigating airspaceNavigating airspace

Situational AwarenessSituational Awareness

CFITCFIT

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GPS Risk ManagementGPS Risk Management Find a good mentor who knows your GPS unitFind a good mentor who knows your GPS unit

Practice on the groundPractice on the ground

• Use simulator softwareUse simulator software

• Ground power unit at aircraftGround power unit at aircraft

When flying, don’t fixate on the GPS unitWhen flying, don’t fixate on the GPS unit

Take an extra safety pilot to scan for trafficTake an extra safety pilot to scan for traffic

Practice, practice, practicePractice, practice, practice

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ConclusionConclusion

Know the basicsKnow the basics

Learn the unit you fly withLearn the unit you fly with

Practice makes perfectPractice makes perfect

Exercise good risk managementExercise good risk management

GPS resources are available online at: GPS resources are available online at:

www.aftw.org/gps.htmlwww.aftw.org/gps.html

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QuestionsQuestions

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