Since PRN133 was set healthy for WAAS corrections, its ranging was kept at NM (Not Monitored) level, preventing its use for safety of life applications, however in the last few days, its ranging improved to UDRE 50 meters, which allows it to contribute for non precision approaches. With this...

Who knows something about 50KHz spacing for glideslope receptors? Traditionally we have 40 GS frequencies, with 150KHz spacing from 329.15MHz to 335 MHz. But I see European ILS's requiring "50KHz Glideslope spacing". Anyone know what receptors do this? Or why we would want to do this? 8.33...

I am considering KLN-90B as replacement for my M-3 Approach. Question for experienced KLN-90B users: Legality aside, can you operate KLN-90B in approach mode (doing GPS approaches) with an outdated database? Thanks in advance, Robin Hou

I've been asked to help write some code to assist in flight planning by choosing routes. I have just enough Computer Science and IFR background to make me dangerous. I said that I'd donate my effort if it results in Free code the community can use. So we're making this a community...

I just installed a GDL69A data link with my 530, which works great. It gives Nexrad radar as well as graphical METARs, and superimposes the information on the basic map pages. It is also supposed to provide text metars, but this will not be available until "sometime in the future" Worst, I have...

Have you ever "made up" an approach to a nonexistent airport for the purposes of training or currency? I mean, to pick a space in the boonies, and then use nearby navaids to fashion a homemade approach to an imaginary runway. Some instructors will do this. Now, I was wondering, is there any way...

Just heard that a small aircraft busted the DC prohibited are, and they evacuated the White House and Capitol Building. Some poor ******* ain't going to be aviating for a while.

As I was coming into Grand Rapids (KGRR) yesterday, the controller announced that there was a "level 5" return (or perhaps she said "cell") on final to runway 8, so I was vectored to 35 where there were mostly "just level 4" stuff. So, forgive my ignorance, but where are these levels defined? I...

In the latest Jepp update for Marion, ILL, the procedure has changed to what looks for all the world like a LOC approach. The minimums for the ILS have been replaced by ‘NA’, and the DA has been replaced by an MDA. Yet the title of the approach is still ILS Rwy 20. Why didn’t they change the...

What are your standards for taking passengers up into actual conditions? I've developed a decent feel for what people will tolerate VFR- who can take a few bumps, who will get scared if its windy, etc. But I haven't got any idea what to make of taking pax into the soup. Is it as disorienting...

I just bought the Hood Lamb and had to send them back. They simply would not clamp to my David Clark H10-13.4 which have a narrower than usual band. To their credit, they acknowledge this problem with DC's and suggest friction tape to increase the girth of the band. Didn't work...to rinky-dink...

If I am navigating along a Victor Airway, and want to program it into my GPS, how can I tell if there is an angle (i.e. change in direction) at an intersection? I know that some intersections are there just because of changes in MOA, MOCA, etc, but definitely some are there because the airways...

If you are a pilot who uses both a headset and eyeglasses, what IFR trainng device works and fits best for you? The generic foggles, like Sporty's sells? The Jeppesen JeppShades Flip-Up hood? A particular model of hood?

If an approach has a hold in lieu of a PT, but the chart says "No PT", is the hold optional, or is it only available with ATC authorization the way a PT would be in this situation? I was looking at the ILS 2 approach into EEN, and there is a segment at 4000' from an IAF at the GDM VOR marked No...

Just for fun, I put up a web page on flying to Europe: http://xpda.com/flyingtoeurope I'd be interested in any comments, criticism, or general harassment. Bob Webster

Can anyone point out why the following approaches have minor differences (specifically the minimums and the MAP): RUT LOC/DME 19 RUT LOC 19 (with DME)

recent thread has me wondering: what's the shortest runway you've encountered with an ILS? About the shortest I can think of offhand is the ILS 24 at RID (Richmond, Indiana), 5500 ft. We may have been somewhere w/ a shorter runway served by an ILS, but probably didn't fly an ILS and I don't...

I just bought a FlightStat Fingertip Pulse Oximeter as an added measure of safety when flying at oxygen altitudes (with oxygen, obviously). Anyway, the device does not really come with any guidelines on threshold levels below which you should be concerned. 1. A little background reading suggests...

Have been inactive for many years. About 20 years ago, when flying up from the south, I got suckered in. The tops slowly rose untill I was flying at over 15,000 (Mooney 201) near Cleveland, It was clear on top and the temp was in the mid 40s on the ground, and the freezing level was high enough...

I'm just starting to work on my Instrument Rating and yesterday when doing an ILS approach I was keeping the localizer centered and my instructor told me to look up about a mile out. We were maybe 200 yards off the centerline. Next one we stayed on the centerline (visually) and the needle was 1/2...