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IFRFlightConsiderationsIFRFlightPlanningFlightOverview•AIM:5-1-1to5-1-13•Beforeplanningtheflightdetails…takeabroadlookatyourob
jective.Compare:–Distancewithfuel–Weatherwithroute–Terrainwithaircraftperformance–Goalandyourproficiency–Isthistripreallyneces
sary?•§91.103Preflightaction.–Eachpilotincommandshall,beforebeginningaflight,becomefamiliarwithallavailableinformationconcerningthatfli
ght.Thisinformationmustinclude–•(a)ForaflightunderIFRoraflightnotinthevicinityofanairport,weatherreportsand
forecasts,fuelrequirements,alternativesavailableiftheplannedflightcannotbecompleted,andanyknowntraffi
cdelaysofwhichthepilotincommandhasbeenadvisedbyATC;•(b)Foranyflight,runwaylengthsatairportsofintendeduse,andthefollo
wingtakeoffandlandingdistanceinformation:•“NWKRAFT”14CFR91.103•PreflightAction:NWKRAFT•(a)Foraflightunde
rIFR,pilotshouldknow:•N-Notams(allavailableinfoconcerningflight)•W-weatherreportsandforecasts•K-knowntrafficdelays•R–runw
aylengths•A-alternativesavailable•F-fuelrequirements•T–TakeOff/LandingDistanceinfo,Section(b).•§91.167FuelrequirementsforflightinIFRconditi
ons•(a)NopersonmayoperateacivilaircraftinIFRconditionsunlessitcarriesenoughfuel(consideringweatherreportsandforecasts
andweatherconditions)to––(1)Completetheflighttothefirstairportofintendedlanding;–(2)Exceptasprovidedi
nparagraph(b)ofthissection,flyfromthatairporttothealternateairport;and–(3)Flyafterthatfor45minutesatnormalc
ruisingspeed.•(b)Paragraph(a)(2)ofthissectiondoesnotapplyif:–(1)Part97ofthischapterprescribesastandardinstrumentapproachprocedureto,oraspecialinstrum
entapproachprocedurehasbeenissuedbytheadministratortotheoperatorfor,thefirstairportofintendedlanding;and–(2)Appropriateweathe
rreportsorweatherforecasts,oracombinationofthem,indicatethefollowing:•(i)Foratleast1hourbeforeandfor1houraftertheestima
tedtimeofarrival,theceilingwillbeatleast2,000feetabovetheairportelevationandthevisibilitywillbeatleast
3statutemiles.14CFR91.167•FuelRequirementsforFlightinIFRConditions:–tofirstairportofintendedlanding–toalternateairport(
ifrequired)–45minutesatnormalcruisingspeed•AlternateisNOTneededwhen:–firstairporthasIAPAND–1-2-3ruleforecastwx–+/-1hourETA–Atleas
t2,000’ceiling–Atleast3SMvisibility.•§91.169IFRflightplan:Informationrequired.–(a)Informationrequired.Unle
ssotherwiseauthorizedbyATC,eachpersonfilinganIFRflightplanmustincludeinitthefollowinginformation:•(1)Informationrequiredunder§91.153(a)ofthispart;•(2
)Exceptasprovidedinparagraph(b)ofthissection,analternateairport.–(b)Paragraph(a)(2)ofthissectiondoesnotapplyif:•(1)P
art97ofthischapterprescribesastandardinstrumentapproachprocedureto,oraspecialinstrumentapproachprocedurehasbeenissuedbyth
eAdministratortotheoperatorfor,thefirstairportofintendedlanding;and•(2)Appropriateweatherreportsorweatherforecasts,oracombinationof
them,indicatethefollowing:–(i)Foraircraftotherthanhelicopters.Foratleast1hourbeforeandfor1houraftertheestimatedtimeofarrival,th
eceilingwillbeatleast2,000feetabovetheairportelevationandthevisibilitywillbeatleast3statutemiles.14CFR9
1.169•IFRFlightPlan:InformationRequired•Section(c)IFRalternateairportstandardminimums–600’ceiling/2smforprecision–800’ceiling/2smf
ornonprecision–atETAatalternate•forecastWXmustallowdescentfromMEAtoairportunderbasicVFR–(checkVFRminimumsforalla
irspaceyouwilltransit!)WITHIAPNOIAP:–(c)IFRalternateairportweatherminima.–UnlessotherwiseauthorizedbytheAdministrator,nopersonmayincludeana
lternateairportinanIFRflightplanunlessappropriateweatherreportsorweatherforecasts,oracombinationofthem,indicatethat,attheestimatedtimeofarrival
atthealternateairport,theceilingandvisibilityatthatairportwillbeatorabovethefollowingweatherminima:•(1)Ifaninstrum
entapproachprocedurehasbeenpublishedinpart97ofthischapter,oraspecialinstrumentapproachprocedurehasbeen
issuedbytheAdministratortotheoperator,forthatairport,thefollowingminima:–(i)Foraircraftotherthanhelicopters:Thealternateairportmi
nimaspecifiedinthatprocedure,orifnonearespecifiedthefollowingstandardapproachminima:»(A)Foraprecisionapproachprocedure.Ce
iling600feetandvisibility2statutemiles.»(B)Foranonprecisionapproachprocedure.Ceiling800feetandvisibility2statutemiles.•(2)Ifnoinstrumentapproachp
rocedurehasbeenpublishedinpart97ofthischapterandnospecialinstrumentapproachprocedurehasbeenissuedbythe
Administratortotheoperator,forthealternateairport,theceilingandvisibilityminimaarethoseallowingdescentfromtheMEA,approach,andlandingunderbasicVFR..
•§91.173ATCclearanceandflightplanrequired.–NopersonmayoperateanaircraftincontrolledairspaceunderIFRunlessthatpersonhas–•(a)FiledanIFRflightplan;and•
(b)ReceivedanappropriateATCclearance.Route•RouteSelection:–AircraftPerformance–FuelEconomy–AvailabilityofRouteAlternatives–Terr
ain–AircraftEquipment(IFR-certifiedGPS)–PreferredIFRroutes•Airport\FacilityDirectory•EnroutesectionofJeppesenAirw
ayManual–Ifstartingwithafix,thenexpectroutingbywayofODP/SID,orradarvectors.•§91.181Coursetobeflown.–UnlessotherwiseauthorizedbyAT
C,nopersonmayoperateanaircraftwithincontrolledairspaceunderIFRexceptasfollows:•(a)Onafederalairway,alo
ngthecenterlineofthatairway.•(b)Onanyotherroute,alongthedirectcoursebetweenthenavigationaidsorfixesdefiningtheroute.AlongtheRoute•Check
MEAs•GenerallyalongairwaysunlessGPSisIFRcertified•CheckforODPs/SIDsandSTARs•Alternateairports?–Farenoughawaytoavoiddestination’sa
dverseweather…closeenoughtomakeit.–RecommendedinstrumentapproachFlightInformationPublications•FlightPublications–Publishe
dDeparturesandApproaches•Suitabilityandfamiliarity–Alternatesuitability•NOTAMs–ChartNOTAMssectionofJepps–Notices
toAirmen•Airplane’sFlightManualSupplement–IFRequipmentcertificationrequirementsNOTAM(D)•Informationisdisseminatedforalln
avigationalfacilitiesthatarepartoftheNAS,allpublicuseairports,seaplanebases,andheliportslistedintheA/FD.Thecompletelistofall(D)informationismai
ntainedinacomputerdatabase.MaybeobtainedfromFSSforthedurationofthe(D)unlessitispublished.NOTAM(L)•Taxiwayclosures,personnel
andequipmentnearorcrossingrunways,andairportlightingaidsthatdonotaffectinstrumentapproachcriteria,suchasVASI.•Distributedlocallyonlyandisnotattache
dtothehourlyweatherreports.Aseparatefileof(L)ismaintainedateachFSSforfacilitiesintheirareaonly.FDCNOTAMs•AmendmentstopublishedIAPsandothe
rcurrentaeronauticalcharts.Theyarealsousedtoadvertisetemporaryflightrestrictionscausedbysuchthingsasnaturaldisastersorlarge-sc
alepubliceventsthatmaygenerateacongestionofairtrafficoverasite.•FSSwillgivethepilotthoseFDCNOTAMs,thatarewithin400mi
lesoftheirfacilityandareunpublished.Thoseoutside400milesaregivenifspecificallyrequestedbythepilot.NOTAMS•AnintegralpartoftheNOTAMsystemisth
eNoticestoAirmenPublicationpublishedeveryfourweeks.–Oncepublished,theseNOTAMsarenotgiventopilotsinweatherbriefingsunlessspecifi
callyrequestedbythepilot.–---“RemembertoaskforpublishedNOTAMS”---FlightInformationPublications•AIM–Forreviewofcurrentproceduresandc
hanges•NavigationLog–Haveaflow•Aircraftlogbooks–Fortransponder,pitot/static,altimeter,andVORcheckcurrency•UseLa
testIssueofAeronauticalCharts–IFREnrouteCharts:56days–IFRApproachCharts:56daycycleWeatherConsiderationsBythetimeyouarereadytoreceiveastandard
briefingfromFlightService,youshouldalreadyhavesomeideaabouttheweatherhazardsalongyourrouteofflightandconditionsatyourdestination.Pre-FlightBriefi
ng•Pre-flightBriefingObjective:“…communicatea“picture”ofmeteorologicalandaeronauticalinformationnecessaryfortheconductofasafeandefficientflight.”•Pr
eflightBriefingrequestshouldinclude…–Typeofflightplanned(IFRorVFR)–Nameoraircraftnumber–Aircrafttype–DepartureAirpo
rt–ArrivalAirportWeatherCharts•GoodstartisWeatherDepiction–Bird’seyeviewofcategoricaloutlooks•SurfaceAnalysis–Fron
talmovements•RadarandSatelliteimages•AreaForecasts•IcingLevelAltitudeSelection•Basedon:–MEA–ATCassignedlowestavai
lableIFRaltitude–Highestaltitudewithoutoxygen–Winds,turbulence,andice.•§91.177MinimumaltitudesforIFRoperations–(a)Operationofaircraftatminimum
altitudes.Exceptwhennecessaryfortakeofforlanding,nopersonmayoperateanaircraftunderIFRbelow–•(1)Theappli
cableminimumaltitudesprescribedinparts95and97ofthischapter;or•(2)Ifnoapplicableminimumaltitudeisprescribedinthoseparts––(i)Inthecaseofoperationso
veranareadesignatedasamountainousareainpart95,analtitudeof2,000feetabovethehighestobstaclewithinahorizontaldistanceof4nauticalmilesfromthecourse
tobeflown;or–(ii)Inanyothercase,analtitudeof1,000feetabovethehighestobstaclewithinahorizontaldistanceof4nauticalmilesfromthecou
rsetobeflown.14CFR91.177•MinimumAltitudesforIFROperations•Applicableminimums–Mountainous(2000’AGL/4nm)–Other(1000’AGL/4nm)–MEA/MOC
A/22nm•Climbtohigherminimumimmediately,orMCAdesignated–(we’llcoverthisinmoredetailinEnrouteoperations).•§91.17
9IFRcruisingaltitudeorflightlevel–(a)Incontrolledairspace.EachpersonoperatinganaircraftunderIFRinlevelcruisingflightincontrolledairspaceshallmaintain
thealtitudeorflightlevelassignedthataircraftbyATC.However,iftheATCclearanceassigns“VFRconditionsontop”thatpersonshallmaintainanaltitudeo
rflightlevelasprescribedby§91.159.–(b)Inuncontrolledairspace.Exceptwhileinaholdingpatternof2minutesorlessorwhileturning,eachpersonoperatin
ganaircraftunderIFRinlevelcruisingflightinuncontrolledairspaceshallmaintainanappropriatealtitudeasfo
llows:•(1)Whenoperatingbelow18,000feetMSL––(i)onamagneticcourseofzerodegreesthrough179degrees,anyoddt
housandfootMSLaltitude–(ii)onamagneticcourseof180degreesthrough359degrees,anyeventhousandfootMSLaltitude.CompletingtheNavLog•Helpstoorganizeyou
rflight•Concisetextualdescription•Monitoryourprogressforsubsequentchange–ETE/ATE:ETA/ATA•Seeexamplesinc
hapter10CofyourJeppesenTestGuide–ComparewhatisontheFAAflightplanformtotheFlightLogexamplesgiven.•Getsom
eone-on-oneinstructionfromyourflightinstructorwhenyoustartyourIFRcross-countryflying.FlightPlanExample(Note
:thereshouldnotbe“K”infrontofVORidentifiersinroutesection.That’samisprint!)FlightPlanningFilingtheFlightPlan•Pilots
shouldfileflightplanatleast30minutespriortoestimatedtimeofdeparturetoprecludepossibledelayinreceivingATCclearance.Block3:
•Aircraftequipmentsuffixcode:–CheckAIMparagraph5-1-7,Table5-1-2forappropriatecode.•NoteEquipmentHeadingsonlegend.Filin
gAltitude:•Fileyourinitialcruisingaltitude.•Withmultiplecruisingaltitudes,listAltitudeforfirstlegonly.Filingyourroute:•Itisimportanttha
ttherouteofflightbeaccuratelyandcompletelydescribedintheflightplan.•Ifflightistobeconductedviadesignatedairways,describetheroutebyi
ndicatingthetypeandnumberdesignatorsoftheairwayrequested.Ifmorethanoneairwayistobeused,clearlyindicatepointsoftransition.Ifthetr
ansitionistobemadeatanunnamedintersection,showthenextsucceedingNAVAIDornamedintersectionontheintended
routeandthecompleteroutefromthatpoint.•TransferfromflightlogtoflightplanFilingtheFlightPlan•RouteofFlight–UseAirwaysorJetroutes–usingtypeandnumberde
signators•“V433”forVictorAirway433•“J14”forJetRoute14–Clearlyindicaterouterequestedwith:•Airways/Routedesignatorsand•
NavigationalAids(VOR,VORTAC,NDB,etc.)•ListNavAidsonlyatroutechangepoints.•FAADataBaseWaypoints(GPS,etc.)FlightPlannin
g•Filingyourroute–Example:DraketoWinslowviaFERERwouldbefiled:DRKV562FERERV567INW•Estimatedtimeenroute–Theestimatedfl
yingtimefromdeparturepointtodestination(lift-offtotouchdown)•FuelOnBoard–Totalfuelonboardinhours&minutesFlightPlan–IFRFl
ightsRouteofFlight(continued)–Filea“PreferredRoute”wheneverappropriate.(SeeA/FD)–DPs,SIDsandSTARs•MaybeissuedbyATCaspartofyourclearanc
eunless:•Youwrite“NODP”,“NOSID”or“NOSTAR”inRemarkssection,asappropriate.FilingDP’sandSTAR’s•HowtofileaDPorSTAR–Departurename:ROCKIONE
DEPARTURE–Departurecode:(ROCKI1.ROCKI)•Forfilingatransition:–Transitionname:MILIS–Transitioncode:(ROCKI1.MILIS)–Arrivalname:MOORPARKFOURARRIV
AL–Arrivalcode:(FIM.MOOR4)•Forfilingatransition:–Transitionname:FRESNO–Transitioncode:(FAT.MOOR4)FlightPlan–IFRFlights•DirectFlights–Mustbeinra
darenvironment.–Thepilotisresponsibleforobstructionclearancerequirements.CheckOROCAs.–Definedbyradiofixes:•Allfixe
s/waypointsbecome“compulsoryreportingpoints”•MusthaveminimumofonewaypointineachARTCC.–Shouldbeguidedby…•StandardServiceVolume:
AIM,par.1-1-8•BelowFL180:Navaidsshouldnotbeover80NMapart(L).•14,500’MSLtoFL180:Navaidsnotover200NMapart(H).•FL180to450:Navaidsnotover260NMapart(H).
StandardServiceVolumesAircraftperformance•Climbperformance–Usethemaximumrate-of-climbchartinPOHtodetermineiftheC172performancewillbeadequateforan
ygivenDP.FlightPlan–Changes•ChangeinFlightPlan–Changeofaltitudeorflightlevel–Changeofdestination–Changeof
route–AVERAGETASATCRUISE…•AdviseATCifchanges5%OR10kts,whicheverisgreater.•ChangeInETD(“proposeddeparturetime”)–1hourafterETD–yourFPmaydropoutofsyst
em.–Thus,ifdelayedover1hour:•AdviseFSS/ARTCCAirborneFiling•PriortoenteringcontrolledairspacewhenweatherisbelowVFR…–Submit(file)acomple
teIFRflightplan•usuallytoFSS–ReceiveanATCclearancefromARTCC•AirFilingtoenterB,C,D,andEairspace•“Pop-up”IFR•Trafficpermittin
g,otherwise:•Mayrequirea30mindelayCompositeFlightPlans–VFRforoneportion/IFRforanotherportionofflight–IfVFRisfirst:•Reportdepartu
retimetoFSS•RequestATCclearanceatappropriatepoint•RequestclosureofVFRflightplan(toFSS,center,ortower)Composi
teFlightPlans•IfIFRisfirst:–ATCwillnoteactualdeparturetime•andsoshouldthepilot!–Noteclearancelimit!–Clearancelimit–reachedwithoutATCclearance!
(Nowwhat?)•MUSTremaininVFRcondition“untiloperatinginaccordancewiththeIFRclearance”ClosingtheIFRFlightPlan•Requiredby1
4CFRPart91.169•Iflandingoncontroltowerairfield,cancelledautomatically…however!•Othermethods:–FSSonground–ATCwhileair
borneinVMCbelow18,000’MSL.–State:“CancelmyIFRFlightPlan”SimulatedInstrumentFlight–Cautions–Consult91.109
before“underthehood”flightisattempted–flyatorabovepublishedMEAsatnight•SafetyPilot–possessesatleastaP
rivatePilotCertificatewithcategoryandclassratingsappropriatetotheA/C,andacurrentmedical.•SafetyPilot–adequatevisionforwardandsideofA/C•Aircraft
–hasfullyfunctioningdualcontrols(exceptionfor“throwovercontrolwheel)14CFR91.109•FlightInstruction;SimulatedI
nstrumentFlightandCertainFlightTests•Section(b)Nopersonmayoperateanaircraftinsimulatedinstrumentflightunless–Safetypi
lot=privatepilotratedinaircraft(Category/Class)–Safetypilothasadequatevisionforwardandside–Fullyfunctioningdualcontrols.•U
seIFRProceduresinVFRConditions–Obtaincompletebriefing–Fileflightplan–Usecurrentcharts–Usenavigationaids–practicekeepingneedlecentered–
Maintainaconstantaltitude(appropriatefordirectionofflight)–Estimateenroutepositiontimes–MakeaccuratepositionreportstoF
SS•Itisagreathabittogetinto…