SMSA ICW Seminar: Topic 4-Navigation and Electronics |
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Advantages
Reliable
Non-electric
Disadvantages
Expensive
Replace to update
Bulky and heavy
Compass
Dividers
Parallel Rules
Sighting Compass
Advantages – always work, inexpensive and non-electric
Disadvantages - user needs knowledge and training
Old technology
Limited range
May be kept alive or phased out
Few units available
Advantages
Accurate especially when WAAS capable
Inexpensive
Portable
Low power drain
Weather resistant
Disadvantages
Shows only way-points and routes
Cumbersome to enter way-points and routes
Advantages
Accurate especially when WAAS capable
Chart shown with way-points and or routes
Electronic charts updatable
Some portable some fixed
Low power drain
Weather resistant
Disadvantages
More expensive
Small screen size
Lower resolution
Cumbersome to enter way-points and routes
Electronic charts expensive
Updates relatively expensive
Advantages
Accurate especially when WAAS capable
Easy way-point and route creation
Detailed charts
Customizable charts and information
Larger screen size
Highest resolution
Weather, radar and photo overlay or side-by-side display
Large amount of chart availability
NOAA downloadable charts free
Electronic charts updatable
Disadvantages
More expensive
Higher power drain
Most computers and screens not weather resistant
Weather resistant computers and screens expensive
Proprietary electronic charts expensive
Proprietary electronic charts updates relatively expensive
Accuracy of where you are at
Accuracy of depth on up-dated chart
Cross Check Error
Way-points before bridges to estimate arrival time
When headed South it is hard to see marks
Raster and Vector Chart
Raster is a scanned paper chart
Vector is a digital chart
NOAA electronic charts are free but...
Are they up to date?
Chart companies spend big bucks updating their charts