Cross Country Flight Planning Flashcards
(234 cards)
What are three common ways to navigate?
a. pilotage - reference to visual land markings
b. dead reckoning - computing direction and distance from a known position
c. Radio navigation
What type of aeronautical charts are available for VFR navigation?
a. Sectional Charts - visual navigation of slow to medium speed aircraft
b. VFR terminal area charts - depict the class B airspace
c. VFR flyway planning charts - printed on the reverse side of a TAC. They depict flight paths and altitudes recommended for use to bypass high traffic areas.
Are electronic flight bags (EFBs) approved for use as a replacement for paper reference material (POH and supplements, charts)
Yes. EFBs can be used during all phases of flight operations in lieu of paper reference material when the information displayed is the functional equivalent of the paper reference material replaced and is current, up to date, adn valid. It is recommended that a secondary or backup sources of aeronautical information necessary for the flight be available.
What is an isogonic line?
broken magnetic line on aeronautical charts that show the amount and direction of magnetic variation
What is magnetic variation?
angle between true north and magnetic north
How do you convert a true direction to a magnetic direction?
East is least (subtract)
West is best (add)
What are lines of latitude and longitude?
Lines that are parallel to the equator (latitude). Lines that go from north pole to south pole (longitude)
What is magnetic deviation?
Compass needle had frequently deflected (called deviation) when influenced by engine instruments and avionics.
What are several types of navigation aids?
VOR (Very High Frequency Omnidirectional Range)
VORTAC (VHF Omnidirectional Range/Tactical Air Navigation)
DME (Distance Measuring Equipment)
RNAV (Area Navigation) includes INS, VOR/DME-referenced and GPS
What is a VOR or VORTAC?
VORs are VHF radio station that project radials in all directions from the station. Each radial is denoted by its outbound magnetic direction. Almost all VOR stations will also be VORTACS. A VORTAC provides the standard briefing of a VOR plus distance information to pilots of airplanes which have the distance measuring equipment?
At what frequency range do VORs operate?
between 108 and 117.95 MHz
What is a VOR radial?
A radial is a line of magnetic bearing extending from an omnidirectional range> A VOR projects 360 radials from the station. The radials are always identified by their direction “from” the station.
How are VOR NAVAIDs classified?
Terminal, Low, High
What reception distances can be expected from the various class VORs?
Class Distance/Altitudes Miles T 12,000 and below 25 L Below 18,000 40 H Below 18,000 40 H 14,500 - 17,999 100 (counterminous 48 states only) H 18,000 - FL450 130 H Above FL450 100
What limitations, it any, apply to VOR reception?
VORs are subject to line-of-sight restrictions, and the range varies proportionally to the altitude of the receiving equipment.
What are the different methods for checking the accuracy of VOR receiver equipment?
VOR check - plus of minus 4 degrees
Ground checkpoint - plus of minus 4 degrees
Airborne checkpoint - plus or minus 6 degrees
Dual VOR check - 4 degrees between each other
Selected radial over a known ground point - plus of minus 6 degrees
What is DME?
Distance Measuring Equipment - used to measure, in nautical miles, the slant range distance of an aircraft from the DME navigational aid. Aircraft equipped with DME are provided with distance and ground speed info when receiving a VOR or TACAN facility. DME operates on frequencies in the IHF spectrum between 960 and 1215 MHz.
Give a brief explanation of GPS.
GPS is a satellite-based radio navigation system that broadcasts a signal used by receivers to determine a precise position anywhere in the world.
What are the three functional elements of GPS?
Space element - consists of 30 satellites
Control element - consists of a network of ground-based GPS monitoring and control stations that ensure the accuracy of satellite position and their clocks
User element - consists of antennas and receiver-processors onboard aircraft that provide positioning, velocity, and precise timing of the user.
What are the different types of GPS receivers available for use?
GPS receivers used for VFR navigation vary from fully integrated IFR/VFR installations, to handheld devices. Pilots must understand the limitations of the receiver prior to using in flight to avoid misusing navigation info.
What is the purpose of RAIM?
Receiver autonomous integrity monitoring (RAIM) is a self-monitoring function performed by a GPS receiver to ensure that adequate GPS signals are being received from the satellites at all times. The GPS will alert the pilot whenever the integrity monitoring determines that the GPS signals do not meet the criteria for safe navigational use.
Where can a pilot obtain RAIM availability info?
Pilot may obtain GPS RAIM availability info by using a manufacturer-supplied RAIM prediction tool, or using the Service Availability Prediction Tool on the FAA enroute and terminal RAIM prediction website. Pilots can also request GPS RAIM aeronautical info from an FSS during preflight briefings.
If RAIM capability is lost during flight, can you continue to use GPS for navigation?
Without RAIM capability, the pilot has no reassurance of the accuracy of the GPS position. This prevents the pilot from being alerted to the loss of the required number of satellites in view, or the detection of a position error.
Before conducting a flight using GPS equipment for navigation, what basic preflight checks should be made?
a. Verify the GPS equipment is properly installed and certified for the planned operation
b. Verify that the databases have not expired
c. Review the GPS NOTAM/RAIM info related to the planned route of flight
d. Review operational status of ground based NAVAIDs and related aircraft equipment appropriate to route of flight
e. Determine that the GPS receiver operation manual or airplane flight manual supplement is onboards and available for use