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#11
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![]() "G. Burkhart" wrote in message news:fdCpc.56114$536.9689876@attbi_s03... I remember reading online about airport identifiers a while back. Now, if only I can find it again... http://www.faa.gov/atpubs/LID/LIDHME.htm |
#12
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"Steven P. McNicoll" wrote:
"Jeff Saylor" wrote in message ... Here's another interesting case, Drummond (Montana) Airport lost its three letter identifier, DRU (or KDRU) recently. It is now M26. It will be interesting to see where KDRU pops up next, I don't know of many cases where an airport lost its 3 letter id. Three-letter identifiers are assigned to navaids; to airports with a manned air traffic control facility or navigational aid within airport boundary; to airports that receive scheduled route air carrier or military airlift service, and to airports designated by the U.S. Customs Service as Airports of Entry. I believe airports with weather reporting capability also qualify; many airports that do not meet the qualifications above received all letters after their new ASOS/AWOS was comissioned. On a related note, a bunch of VORs that had the same 3 letter ID as airports that they were near had their IDs changed a number of years ago. For example the Williamsport (Pa) VOR had its ID changed from IPT to FQM. I've wondered if the letters FQM stand for anything but as far as I can tell it's just a random identifier. The VOR is a distance away from IPT (KIPT) the airport, and sits atop a mountain ridge. Apparently some pilots flew to the mountain instead of the airport. On the other hand MHT VOR is 4.8 miles away from KMHT (Manchester NH) airport and they share the same identifier. This appears to violate 7350.7N 1-2-5 1-2-5 Duplication a. At the same location, the same identifier may be assigned to one navigational aid (which must be located within the airport boundary), to the airport, to a manned air traffic control facility, and to an aviation weather station on the airport. With certain restrictions, variations of the airport identifier may be assigned also to landing systems. DRU VOR is close by, but it's not within the airport boundary, so DRU should never have been the identifier for Drummond Airport. Apparently somebody finally caught the error. 7350.7N 1-2-4 doesn't make it clear that this is ground for changing the identifier that has been assigned, although it is probably safe to assume that if the VOR could no longer share its ID with the airport than this airport was less important. 1-2-4 Permanence. Established three-letter identifiers are considered permanent and will not be changed without strong and documented justification, primarily concerning air safety. Other than three-letter identifiers may be changed when the status of a landing facility changes, e.g. private-use to public-use, etc. |
#13
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![]() "G. Burkhart" wrote in message news:fdCpc.56114$536.9689876@attbi_s03... I may be wrong, but don't most 3-letter identifiers offer weather reporting of some type? There are probably exceptions, but if the identifier contains numbers, they don't offer weather reporting. I have seen identifiers change My home base of KWAY has no weather reporting and not even a published instrument approach (though an approach is in the design process finally). -------------------- Richard Kaplan, CFII www.flyimc.com |
#14
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"Jeff Saylor" wrote in message
... That's usually true. An exception is G. O. Carlson-Chester County Airport, Pennsylvania. It's had weather reporting for a while now and I've heard of no plans to change its identifer from 40N. The primary motivating factor to change to a 3-letter identifier is when an airport has a localizer or ILS approach. The FAA has decided they want the navaid ID to match the airport ID, i.e. in Pennsylvania 2G3 was changed to KVVS because the localizer is IVVS and the NDB/FAF is VV. -------------------- Richard Kaplan, CFII www.flyimc.com |
#15
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![]() "Steven P. McNicoll" wrote in message link.net... Three-letter identifiers are assigned to navaids; to airports with a manned air traffic control facility or navigational aid within airport boundary; to airports that receive scheduled route air carrier or military airlift service, and to airports designated by the U.S. Customs Service as Airports of Entry. KWAY meets none of these requirements. As far as I know it never met the requirements although I cannot say that with certainty. Why does it have a 3-letter identifier? -------------------- Richard Kaplan, CFII www.flyimc.com |
#16
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![]() "Jeff Saylor" wrote in message ... I believe airports with weather reporting capability also qualify; many airports that do not meet the qualifications above received all letters after their new ASOS/AWOS was comissioned. Yes, I meant to include that. I didn't copy far enough. On a related note, a bunch of VORs that had the same 3 letter ID as airports that they were near had their IDs changed a number of years ago. For example the Williamsport (Pa) VOR had its ID changed from IPT to FQM. I've wondered if the letters FQM stand for anything but as far as I can tell it's just a random identifier. The VOR is a distance away from IPT (KIPT) the airport, and sits atop a mountain ridge. Apparently some pilots flew to the mountain instead of the airport. On the other hand MHT VOR is 4.8 miles away from KMHT (Manchester NH) airport and they share the same identifier. This appears to violate 7350.7N 1-2-5 1-2-5 Duplication a. At the same location, the same identifier may be assigned to one navigational aid (which must be located within the airport boundary), to the airport, to a manned air traffic control facility, and to an aviation weather station on the airport. With certain restrictions, variations of the airport identifier may be assigned also to landing systems. The location identifier criteria obviously changed over time. About twenty years ago navaids that shared their identifiers with airports but weren't located on the field began having their identifiers changed. But not all of them were changed, those that were fairly close were left alone. The cutoff seemed to be about five miles. 7350.7N 1-2-4 doesn't make it clear that this is ground for changing the identifier that has been assigned, although it is probably safe to assume that if the VOR could no longer share its ID with the airport than this airport was less important. 1-2-4 Permanence. Established three-letter identifiers are considered permanent and will not be changed without strong and documented justification, primarily concerning air safety. Other than three-letter identifiers may be changed when the status of a landing facility changes, e.g. private-use to public-use, etc. FAAO 7350.7 doesn't say anything about what conditions constitute grounds for changing a 3-letter identifier, but quite a few have changed over the years nonetheless. DRU is different than any other I've seen change. All the rest were VORs, which qualify for 3-letter identifiers on their own, they were just changed to some other 3-letter identifier because they shared the identifier with an airport some distance away, an airport which also qualified for a 3-letter identifier on it's own. But Drummond Airport doesn't qualify for a 3-letter identifier on it's own, it's not even close. It's just a single short turf strip, 2400 feet, with no services or lighting. One wonders why it ever had a 3-letter identifier. One wonders so much that one is compelled to dig out some old publications that explain it. Drummond Airport is a former CAA Intermediate Field, it was Site 44B on the Seattle-Helena airway, part of Green 2. In 1945 the runway was 3600 feet long, it had runway and obstruction lights, a rotating beacon with course lights, and an Airway Communication Station (FSS). There was a rotating airway beacon with course lights, Site 44A on the airway, about three miles northwest of the field, Drummond Radio Range was about a mile and a half northeast of the field. The range identifier was DR. By 1947 an Airport Approach Zone had been added. By 1954 Drummond VOR/DME was in operation, located immediately south of the radio range. The range and VOR shared the identifier DRU. Victor 2 had been established coincident with Green 2. The runway had been reduced to 2600 feet. By 1962 Green 2 had been disestablished. The radio range was still there but the identifier had been changed to DU. The VOR, instead of showing DME, now shows NSME-Non Standard Measuring Equipment. I haven't a clue what that was. By 1967 the radio range was gone, the airway beacon was gone, the FSS was gone, and the VOR had no measuring equipment at all. In 1972 the airport beacon and course lights were still in operation, as was the field lighting. By 1987 the course lights and field lighting were gone, but the airport beacon was still in operation. The runway was down to it's present 2400 feet. By 2001 the airport beacon was gone. The chart segment available on AeroPlanner.com still shows the airport identifier to be DRU, so the change was very recent. |
#17
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![]() "Richard Kaplan" wrote in message s.com... KWAY meets none of these requirements. As far as I know it never met the requirements although I cannot say that with certainty. Why does it have a 3-letter identifier? We discussed that one some time ago. I can find no reason for that airport to ever have a 3-letter identifier. Today, the FAA does not assign any 3-letter identifiers beginning with K, N, Q, W, Y, or Z. An identifier beginning with W would be assigned only by the FCC. Anything in the local history about a commercial broadcast station using those letters? |
#18
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![]() "Steven P. McNicoll" wrote in message link.net... beginning with W would be assigned only by the FCC. Anything in the local history about a commercial broadcast station using those letters? Interesting question but I am not aware of any such history. -------------------- Richard Kaplan, CFII www.flyimc.com |
#19
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John Clear wrote:
South County (Q99) is changing to E16. 1. When? 2. How do you know? Thanks, Hilton |
#20
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"Hilton" wrote in
k.net: John Clear wrote: South County (Q99) is changing to E16. 1. When? 2. How do you know? Thanks, Hilton I was informed of this change by the Director of Santa Clara County Airports by email: To all users of South County Airport (San Martin, California), We have been notified by the FAA's National Flight Data Center that effective on June 10, 2004 the South County Airport Identifier will be officially changed from Q99 to E16. This change is due to a conflict of Area Navigation Routes (RNAV) identifiers that begin with the letter "Q" and airport identifiers that also begin with the letter "Q". The FAA will notify all aerial chart manufacturers of this change, and new charts and approach plates are expected to reflect this change in the next series of publication releases. Please note this change for your records. The County Airports staff will make the necessary changes in signage, websites and other County documents as required. Thanks, Carl Honaker Director Santa Clara County Airports -- Marty Shapiro Silicon Rallye Inc. (remove SPAMNOT to email me) |
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