I was flying this weekend to maintain my instrument currency and came across a GPS approach unlike any I'd seen thus far. Then again, I'm pretty new to GPS approaches so I'm still finding new stuff fairly often. I was flying approaches into Wellsvill, NY (ELZ) and was setting up for the GPS RWY...

10ish years after overlay GPS approaches were introduced in the US, we in the UK still have no GPS approaches. There must be a considerable body of evidence collected on accidents, incidents and anomalies over the period that GPS approaches have been in use. In particular, there may be...

As far as I can see, step-down fixes on GPS approaches are always defined by a distance to the threshold. Are there exceptions? Do GPS approaches exist with waypoints (forming part of the approach sequence) between the FAF and the runway threshold waypoint? Or is it guaranteed that after passing...

How many here have flown GPS approaches with Center as the approach control? I'd be interested to hear your experiences. I needed to fly one yesterday to get into Greenville, AL and the ZTL controller sounded really befuddled about quite how to handle it. Because of another recent experience, I...

With all the talk about the GNS80 and the Garmin 430 having VNAV and LAAS capability, I would like to know something. Are there any actual approaches in use that one can fly, today, that use these features? Do you get vertical guidance from GPS derived altitude or is it vertical guidance from...

GPS article http://www.real-article.com/gps/index.php

GPS article http://www.real-article.com/gps/index.php

GPS article http://www.real-article.com/gps/index.php

GPS article http://www.real-article.com/gps/index.php

GPS article http://www.real-article.com/gps/index.php

GSM mobile phone tracking system via the GPS-TRACK satellite network. Based on repeater triangulation, the system tracks mobile phones using GPS and GSM technology. Track anyone, anyutime, anywhere using their cellphone number. http://www.GpsSpying.Com/

Built-in GPS chips are hooked into a system of satellites which allows accuracy to the meter in determining the position of whatever has a Chip... http://articlesupdates.googlepages.com/gps_chips_can_now_be_built_in_to_almost_

Apparently, if you file IFR HPN - MMU, you get a clearance which starts "CMK CMK275R SAX039R SAX" (i.e. fly outbound on the CMK 275 until you intercept the SAX 039, then fly that inbound to SAX). In the good old days of 2 VOR receivers, this is trivial to fly; the radios don't know or care that...

Has anyone alse tried to use GPS in this area? Mine showed current location pretty accurate (within 1/4 mile) but indicated track wallowed +/- 20 degrees from actual. What sort of degradation tests are being run that wil affect GPS this way? No outages encountered, just misleading track...

When can GPS substitute for ADF? What about an ILS with note: "ADF REQUIRED"? (for missed approach) thanks, Greg

I think that GPS can be helpful for airport ground navigation and avoiding runway incursions. For some reason, I never see this mentioned in any of the material on runway incursion. It's not perfect, but if you have one in the cockpit it might help you maintain situational awareness on the...

I don't have my AIM here at work, and I'm on dial up, so I won't attempt to download it, but I'm looking at the ILS 32 into KMQY Smyrna TN. It says ADF REQUIRED which I understand is to identify the IAF which is the SWZ NDB not associated with a marker beacon, inside the outer marker. This is the...

Hello, I, have a question about using a handheld GPS as a backup/situational awareness tool during IFR flight: is there a handheld on the market that has (apart from nav aids and intersections) any IFR-related navigational infomation (routes, SID's, STAR's) in it's database? Thanks in advance for...

You're supposed to go missed if you have a RAIM or GPS failure message. But all the GPS IAP's I've seen have missed approaches that require use of the GPS to fly correctly (fly to this waypoint, then go to this other waypoint and hold). So what do you do? Use the GPS to fly the missed despite the...

I have seen some GPS Notams about likely unreliability in certain areas over certain very narrowly-defined periods of time. Can anyone tell me what sort of known activities create these conditions? -Robert Scott Ypsilanti, Michigan