If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
GNS430 on the Airway
Ron Lee wrote:
"Marco Leon" mmleon(at)yahoo.com wrote: So how far off an airway is an aircraft when they are following a GPS flight plan with every intersection and VOR? Is there an article or study somewhere that includes metrics to back it up? For example, "a non-WAAS GPS-derived line direct btween two intersection xx miles away will differ from the airway between those same two intersections by x.x statute miles." How do the error allowances play into this? Since unaugmented GPS (not using WAAS) is accurate to 10 meters or so (plus/minus) and an airway is plus/minus four MILES (or is is two?) the navigation source (GPS) is not a major error source. Ron Lee VOR airway's primary is plus/minues 4 to 51 miles, where it expands at 4.5 degrees. The secondary is an additional 2 miles, which expands at 6.7 degrees at 51 miles. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Odd clearance -- airway given twice | Roy Smith | Instrument Flight Rules | 15 | September 20th 05 03:32 PM |
GNS430 Installation | Wayne Sweet | Home Built | 0 | October 3rd 04 04:39 AM |
B-RNAV with GNS430 | Daniel Hofer | Instrument Flight Rules | 1 | September 1st 04 04:12 PM |
Wanted: Blank Datacard Garmin GNS430 | Marco Leon | Piloting | 4 | August 31st 04 06:20 PM |
Wanted: Blank Datacard Garmin GNS430 | Marco Leon | Owning | 3 | August 31st 04 03:33 PM |