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7 votes
Accepted

GNSS approaches: Why does LNAV minima even exist? Wouldn't all aircraft fly to LNAV/VNAV or LPV minimums?

In LNAV/VNAV approaches, the vertical guidance can be provided by WAAS, or it can be provided by a baro-VNAV system. On an LNAV approach, there are step-down waypoints just like on any other non-...
Chris's user avatar
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4 votes

What do these items on a Jeppesen VOR approach chart mean?

The "State" label refers to the source of the values in the minimums box, in this case meaning they are from the respective state authority: A "Std" label in the upper left corner ...
Bianfable's user avatar
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4 votes

BGBW RNP A vs Straight-in approach

The design "requirements" in PANS like Doc 8168 are more like suggestions than requirements. They have no legal force. States are free to ignore these requirements or make their own, and ...
Chris's user avatar
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3 votes
Accepted

What exactly does the expression "higher straight-in minimums" describe as "higher" relative to which value?

It's visibility. For Cat B, your required circling vis is 1600m, UNLESS the ALS is out of service (and the non-CDFA case) - in which case you need 2000m (which is the "higher straight-in minimums&...
Ralph J's user avatar
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2 votes
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What values will I use for circle-to-land in categories A and B? RVR 1800m or RVR 2200m?

Before you can do a circling approach, you must do either a either CDFA straight in, or a non-CDFA approach to runway 22, and then circle to land on a different runway. The circling minimum are ...
Mike Sowsun's user avatar
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2 votes
Accepted

Why are the height values different although the altitude values in the "straight-in approach" and "circling" minimums are the same?

Straight-in is referenced to a particular runway, while circling is referenced to the airport elevation. The same elevation MSL is thus a different height above the referenced elevation. The "...
Ralph J's user avatar
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2 votes

Canadian Approach Plates: Why does the minima show that DME is required but the procedure name does not?

Most likely from amendments over time. Here is the current version of this approach: and an older version: As you can see, the older version has circling minima in addition to the LOC/DME minima. ...
Chris's user avatar
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1 vote

Can you explain what the 2nd caution on the LTAF VOR A chart means?

It means plainly what it says. A right turn is when you turn to the right. If you are going to make a right turn, you need to tell ATC as soon as possible that you are planning to do that. Since you ...
Chris's user avatar
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1 vote

What is meant by the sentence, "It relates to aircraft handling speeds and circling area development."?

"Handling speeds" relates to the speed range airplanes can use when maneuvering around the airport to land on a given runway in the circling configuration (usually gear down and partial flap)...
John K's user avatar
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