25 votes

Why would attempting to land using only instruments 'almost certainly' lead to a crash, and why can computers do it safely?

The instruments used typically by the pilot of a light single engine aircraft (such as depicted in the cartoon in that question) are either a traditional sixpack, or at best a glass cockpit ...
Jamiec's user avatar
  • 33k
20 votes

Why would attempting to land using only instruments 'almost certainly' lead to a crash, and why can computers do it safely?

There are two key factors to consider: precision, and data processing. The instruments in the cockpit are only designed to get the pilot "close enough" so that when the runway becomes ...
fooot's user avatar
  • 73.2k
17 votes

VFR aircraft on a practice instrument approach—is the aircraft IFR? Do they receive separation?

Is the aircraft now IFR? No. The only way ATC can initiate an IFR clearance is by saying the words "CLEARED TO [location]" (7110.65 4–2–1b). The location they say is the clearance limit. If ...
randomhead's user avatar
  • 15.2k
9 votes
Accepted

Are ILS approaches taught as part of instrument rating?

In the US, almost all instrument students learn how to fly an ILS CAT I because that's what's installed in most aircraft. You could get an instrument rating by using an LPV approach instead, though. ...
Pondlife's user avatar
  • 71.7k
8 votes
Accepted

Why is there a "-D" circling-only approach at an airport that does not have corresponding -A, -B, and -C approaches?

"The fact that the suffix is -D implies the existence of LOC-A, LOC-B, and LOC-C approaches at SEE." Actually there is a subtelty: According to Order 8260.19 (or FSIMS 404.g.2), for terminal ...
mins's user avatar
  • 73.1k
8 votes

Are ILS approaches taught as part of instrument rating?

What exactly your training (and checkride) includes will be dictated by what the plane you’re using is equipped for. These days, that typically means ILS/LOC (Cat I only), VOR/DME and RNAV. Some ...
StephenS's user avatar
  • 27.7k
5 votes
Accepted

Why does the surface-level Class E airspace at SIT/PASI (Sitka Alaska) extend so far to the northwest?

The LDA/DME RWY 11 approach puts you darned close to 1000 AGL over those mountains if you come in from HEXAB on the localizer - and that assumes you fly it perfectly. The course reversal for that ...
William Walker III's user avatar
5 votes
Accepted

Why is the distance between BRY VOR and missed approach point 0.2 DME in the plan view, while it is specified as 0.1 DME below?

This might be a mistake in the chart. The Introduction to Jeppesen Navigation Charts defines the number between two navaids/fixes as follows: 10 — Nautical Mile (NM) distance between two navaids and ...
Bianfable's user avatar
  • 55.9k
4 votes

Why would attempting to land using only instruments 'almost certainly' lead to a crash, and why can computers do it safely?

Some planes do have autopilots systems that can land the plane. They know as category 3 auto landing autopilots. to use them the plane has to be certified, testing the autopilot system. the crew has ...
Jim's user avatar
  • 951
4 votes
Accepted

Is it possible to perform a descent like the picture below which I share?

Once you have completed the outbound leg, turned right and intercepted the inbound course, your parallel entry is complete. If you cross the fix for the second time you would turn left and hold as ...
Michael Hall's user avatar
4 votes
Accepted

Why was the rate of part 121 LPV equipage projected to be so low, and has that projection come true?

Short answer: Money. Part 121 operators, i.e. airlines, are interested in profit and running an airline is a low margin business. Aircraft are very big capital expenses. They cost a lot every day in ...
Gerry's user avatar
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3 votes

Why would attempting to land using only instruments 'almost certainly' lead to a crash, and why can computers do it safely?

In 1929, Jimmy Doolittle became the first pilot to take off, fly and land an airplane using instruments alone, without a view outside the cockpit. Hence a human can do. There there no computers as ...
h22's user avatar
  • 12.1k
3 votes

Why does this holding pattern have both minimum and maximum altitudes published?

So that it keeps you under the shelf of the adjoining bravo airspace and because the decent gradient may be steep enough to require an upper limit. As discussed here: The instrument approach ...
Dave's user avatar
  • 101k
3 votes

How can I log simulated instrument time and approaches in a single-place aircraft?

Unfortunately, the only way for you to get simulated instrument time will be to rent a dual-control aircraft, or to use an approved simulator. Since you can do back-to-back approaches in a simulator, ...
Dean F.'s user avatar
  • 16.5k
3 votes

Are ILS approaches taught as part of instrument rating?

Yes, for my Pat 61, FAA issued, Private Pilots License based, Instrument Rating, ILS's were a routine part of the training, we only flew CAT I since we were flying a Piper Archer and not equipped for ...
Dave's user avatar
  • 101k
2 votes

Are ILS approaches taught as part of instrument rating?

In Europe approaches below CAT I are considered as "low visibility operations" (LVO). Each operator (airline) has to apply for the authorization to perform LVO from their CAA. They need to ...
busdriver's user avatar
  • 3,340
2 votes

Why does this holding pattern have both minimum and maximum altitudes published?

To add to Dave’s answer... Just because this hold pattern is used as a Missed Approach holding pattern and as a waypoint when joining the procedure from the IAF VORTAC, it does not mean the hold could ...
Dean F.'s user avatar
  • 16.5k
2 votes

Holding when no hold in-lieu of procedure turn present question

Can I opt to hold at LYZ instead of doing the prescribed procedure turn? You may request to hold in any manner you desire, and fly the hold however you are cleared to fly it. Just be aware that for ...
Michael Hall's user avatar
2 votes
Accepted

FAA Approach and Landing (AL) numbers

00582 in 00582I16CC2_3.PDF is the airport code in the metafile for the approach places. On the D-TPP website, you can find an ...
wbeard52's user avatar
  • 12.7k
1 vote

IAF is part of the hold at an uncontrolled aerodrome. Is the racetrack procedure necessary?

#1. Yes, you must fly to the NDB directly. If you are coming from the south (inbound heading between 339 degrees and 039 degrees), you enter the procedure turn outbound. If you are inbound from any ...
Timbo's user avatar
  • 404
1 vote
Accepted

Since which moment do the Low Visibility Procedures apply?

ICAO Annex 10 Vol. 1 provides some general guidance on ILS critical and sensitive area protection: 2.1.9.3 Technical and operational logic associated with critical and sensitive areas. Ideally, the ...
Bianfable's user avatar
  • 55.9k
1 vote

Why does the surface-level Class E airspace at SIT/PASI (Sitka Alaska) extend so far to the northwest?

As another answer has noted, the surface-level Class E "extension" to the northwest of SIT/PASI is indeed intended to protect the LDA/DME RWY 11 approach. In the July 20 2021 edition of the &...
quiet flyer's user avatar
  • 22.6k

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