Questions tagged [instrument-flight-rules]

Instrument flight rules (IFR) are a set of regulations governing aircraft operations. IFR permits flying and navigating by instruments alone in conditions where there is no visual reference outside the aircraft.

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Logging Instrument approach if if entering IMC past the FAF, but in VMC before and passing the FAF

Can an Instrument rated pilot log an instrument approach if entered IMC past the FAF to minimums but was VMC prior and just past the FAF? What is your source?
Phantom Pilot's user avatar
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2 answers
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What are the oxygen requirements for an IFR flight eastbound on V520 from DBS VORTAC in an unpressurized aircraft at the MEA?

IFR written test question by the FAA. Available answers: The required minimum crew must be provided and use supplemental oxygen for that part of the flight of more than 30 minutes, and the passengers ...
user2605553's user avatar
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Approach miniumum when I lost WAAS during approach

I have a GPS receiver with WAAS. During an LPV approach, I received an LOI message That means I only lost WAAS, not RAIM. Did I just need to change minimum to LNAV and continue the approach?
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You are flying an IFR trip in a Cessna 172 and you receive a pilot report (PIREP). It is useful if:

Practicing for my IFR written test. Question is in the title. Three options: A) It is current and reported by a similar airplane to your own. B) The report is given by a professional pilot—for ...
user2605553's user avatar
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1 answer
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IFR plan only with GPS

I'm right before CFII checkride I understand that if it is without WAAS, I need navigational equipment other than GPS because I can flight plan based on GPS either destination or alternate. However, ...
agentpilot's user avatar
3 votes
2 answers
549 views

Confusion about the 6 month timeline for instrument currency

14 CFR 61.57 (c)(1) says that "within the 6 months PRECEDING the month of flight, that person has performed the following tasks..." (6 instrument approaches and the rest). To keep things ...
Terry's user avatar
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Is there a way to tell if a navaid in the plan view of an approach plate is collocated with DME equipment?

If there are DME distances depicted in the plan or profile view of an approach plate, it is usually pretty obvious which navaid they are referenced to. I'm wondering if there is a way to tell ...
Terry's user avatar
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Best study strategy for instrument checkride?

My instrument check ride is fast approaching, and I want to come up with a comprehensive study strategy to prepare. I feel a bit overwhelmed with the amount of information I feel I should memorize and ...
Terry's user avatar
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4 votes
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269 views

What is the difference between VFR and IFR in class G airspace?

What is the difference, and how would an outsider discern, whether a flight was conducted under Visual Flight Rules or Instrument Flight Rules in class G airspace? (United States, FAA jurisdiction, ...
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What are the rules for an IFR departure from a private airfield with nearby obstructions?

I'm flying out of a small private coastal airfield in California that has a variety of obstructions including nearby trees and hills to the North and East of it, and am trying to understand the legal ...
anonanon's user avatar
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Are Holding Speeds Regulatory?

Throughout instrument I was taught the three different holding speeds (e.g. 0-6,000' MSL is 200 KIAS) and now that I'm starting CFII I am curious about what regulation someone would be breaking if ...
Michael Dauphinee's user avatar
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MAP in profile view of approach plate

I understand that the start of the dotted arrow on the profile view of an approach plate shows the MAP for the precision approach on a plate if the plate combines more than 1 (for example, a plate ...
Terry's user avatar
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Pilot briefing strip

Hello can you guys break this down for me? The briefing strip says Rwy 10 R helicopter visibility reduction below RVR 4000 NA. Is NA not authorized or Not available? Simultaneous approach authorized . ...
youngpilot's user avatar
-1 votes
1 answer
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Human error analysis in general aviation [closed]

can anybody help me with understanding more about the human factors analysis in general aviation Controlled flight into terrain. I am researching on the topic and I would really appreciate any help in ...
Soumyajit Maiti's user avatar
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EASA FCL Clarification (FCL.810 Night Rating)

I'm having an argument whether I can file a Z Flight plan from a non-instrument aerodrome to an instrument one at night to collect hours for the night rating. FCL.810 requires ..a training course .. ...
ExternalUse's user avatar
2 votes
1 answer
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What is the regulation(s) that states GPS can be used in lieu of DME? Pertaining to the US [duplicate]

I always hear that GPS can be used in lieu of DME, but I would like to know the specific regulation that states this.
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Is Pitot Heat required for IFR?

CFR 125.205 states that § 125.205 Equipment requirements: Airplanes under IFR. No person may operate an airplane under IFR unless it has— (a) A vertical speed indicator; (b) A free-air temperature ...
Charles Bretana's user avatar
2 votes
5 answers
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What's the best way to get through clouds when not instrument rated?

The obvious answer to this is... don't go into clouds. But if you are flying among scattered or broken clouds and you go up above them, then when you reach your destination it's overcast and there is ...
Cloud's user avatar
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Cleared straight in approach

I was flying IFR (in a simulator with Vatsim ATC) cleared direct to ROXXE on the RNAV 04 at KAVP at 4000 on a course of 275. The controller said "Cross ROXXE at or above 4000, cleared straight in ...
Tom's user avatar
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Navaid information on SID

I noticed this information under the navaid boxes on the Logan Four departure from KBOS. What do they mean? Additionally could you point me to what publication they would be explained in?
Tom's user avatar
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2 answers
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Holding with no radial specified

During my instrument check ride a couple years ago I was given an unpublished hold by ATC at a fix in the approach. For the hold ATC said something to the effect of "... hold west of [fix name] .....
Tom's user avatar
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Can I fly a SID/STAR if a navaid is NOTAMed inoperative, using RNAV?

Take a SID like this, BARPI2K at LJPZ. The textual Route description says BARPI TWO KILO Climb on track 315 to 1700 ft; LT to PZ L; overhead PZ L; LT on HDG 295; intercept PZ QDR 325 PZ L to BARPI. ...
Marcell Toth's user avatar
4 votes
2 answers
1k views

Airline pilots and unplanned but not necessary manouevres

This story details how an EasyJet captain flew a presumably unplanned circle to give everyone on board a look at the Northern Lights. Are captains allowed to do this sort of thing on a whim, or would ...
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how to determine the optimum FL for A320 to make a flight plan?

I want to make an ifr flight plan for A320 based on fcom, but I don't understand how to make one
Uchiha Madara's user avatar
1 vote
4 answers
871 views

When should the missed approach procedure be executed?

When flying a straight-in precision or non-precision instrument approach, when should the missed approach procedure be executed? Note that this is being asked in the context of FAA regulations, but ...
ryan1618's user avatar
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3 answers
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What did Chuck do wrong in this Chicken Wings comic?

What did Chuck do wrong, other than being in an airplane?
Someone's user avatar
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1 answer
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What is a Tromboning arrival procedure?

I only know that Tromboning is a RNAV arrival procedure which has the trombone shape, and it's an application of CDO (Continuous Descent Operation) along with Point Merge Procedure. Can you give me ...
Harry Huynh's user avatar
2 votes
1 answer
159 views

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

I see so many plates that contain lines of minima requiring the use of DME, but the title does not indicate DME is required. For example, the "LOC RWY 27" approach into CYYJ. The title ...
foxtrottrotfox's user avatar
1 vote
0 answers
49 views

RAIM Checks when using GNSS in lieu of DME for distance information

I understand that a RAIM has to be checked on the ground as part of preflight, as well as before the commencement of an RNAV/RNP approach. What I am unable to find information on online, is whether a ...
Zhi Hao Tan's user avatar
3 votes
1 answer
181 views

1. Why does the glide slope guide you down to 0.7NM away from the runway? 2. Best way to circle from 28 to active runway 36?

Why does the glide slope guide you down to 0.7NM away from the runway? 2. Best way to circle from 28 to active runway 36? Note parachute jump site takes place on SE corner
Mizz's user avatar
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1 answer
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Amending Operating Limitations for IFR operations

I own an experimental aircraft and have installed all the equipment necessary to fly under IFR. I found that there's a line on the Operating Limitations document that says "Day/Night VFR ...
Charles Bretana's user avatar
5 votes
2 answers
278 views

How is the VOR-A approach at KVCB meant to be flown?

This is the VOR-A approach into KVCB: The plate indicates that "Circling NA west of Rwy 2-20." But runway 2 is left traffic and runway 20 is right traffic. How is one meant to avoid the ...
Chris's user avatar
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3 votes
2 answers
452 views

Changing SID without changing the flight plan

Pilots are demanding conventional SID rather than RNAV SID planned on flight plan due gps problem. In that case is it enough for a tower controller to coordinate the conventional SID with the approach ...
ilayda's user avatar
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2 votes
1 answer
401 views

When a VOR is an IAF, must it be treated as a fly-over waypoint, or is fly-by acceptable?

I have a VOR approach at KMDQ that has you fly outbound from the VOR as the IAF, do a procedure turn and come back to the VOR as the Final approach fix. My question is, when you are using it as the ...
Matthew Rasmussen's user avatar
2 votes
1 answer
868 views

Best way to mentally calculate wind correction angle (WCA) when in a holding pattern?

I have been out of flying for a while and need to brush up on my holding patterns. I need a quick method or rule of thumb to calculate the wind correction angle (WCA) for example when flying outbound ...
Talktomegoose's user avatar
4 votes
1 answer
174 views

Why some airspaces don't have high-altitude IFR airways?

I noticed on enroute charts that some airspaces (mainly over Balnkans - e.g. LWSS, LYBA, LDZO, LOVV etc) do not have high-altitude IFR airways. Unfortunately searching online didn't reveal much. What ...
Orestis Samaras's user avatar
6 votes
2 answers
397 views

How do IFR flights in IMC in Class G airspace not collide?

According to Wikipedia, in Class G airspace, "Operations may be conducted under IFR or VFR. ATC has no authority but VFR minimums are to be known by pilots. Traffic Information may be given as ...
Someone's user avatar
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what does upwind engine and down wind engine mean?

can anyone illustrate with a picture what does upwind engine and downwind engine mean? for example, i came across this - “The outer engines are critical. If there is any crosswind then the upwind ...
Deepak's user avatar
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5 votes
2 answers
324 views

Why don't LPV approaches use WAAS GPS for DA

In an LPV approach, the WAAS GPS (not the barometric altimeter) is used to generate the vertical guidance. But the decision altitude for going missed is determined using barometric altimeter. Why isn'...
Hot.PxL's user avatar
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-1 votes
1 answer
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FMC and MCDU not talking

I have a test bed in which the FMC and MCDU are hooked up to one another. FMC menu was populated on MCDU and was able to be navigated. After making some changes to the FMC GPS #2 lines, the FMC ...
Ace's user avatar
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7 votes
1 answer
606 views

Can ATC reject a GA aircraft IFR flight plan to a busy Bravo/Charlie airport?

This may be a dumb question, but can ATC reject or amend your flight plan to prevent a GA training aircraft from flying into a busy airport (i.e. Atlanta)? As an example, flying VFR near Nashville, ...
RattMuscle's user avatar
4 votes
2 answers
410 views

How often do airline pilots actually have to avoid other aircraft that ATC did not tell them about at cruise altitude?

I know any pilot flying in VMC, whether under VFR or IFR, must "see and avoid." How often do airline pilots actually "see" and have to "avoid" other traffic at cruise ...
Someone's user avatar
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1 vote
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With respect to IFR alternate minimums, why are helicopter minimums lower than airplane minimums?

According to 91.169, airplanes need 2,000-ft elevation while helicopters need 1,000 ft. Airplanes also need three set miles visibility while helicopters only need two. Is this because helicopters fly ...
Boeing787's user avatar
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2 votes
1 answer
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What is the difference between DH and RA in Jeppesen charts?

In CAT II and CAT III Approach Charts, the Jeppesen version of charts depicts both the "DH" and the "RA". And, I found out that they are somewhat different. So, why do these ...
moon's user avatar
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1 vote
0 answers
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How far back can the FAA go in requiring documentation of IFR currency?

I did an IPC recently and got to thinking how long I needed to retain the proof of re-up. Let's say that a pilot stays IFR current for 10 years after the hiatus requiring an IPC. For whatever reason, ...
Kenn Sebesta's user avatar
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9 votes
2 answers
850 views

What are the constraints and procedures regarding IMC formation flight?

"Instrument Meteorological Conditions" are those in which flight under Visual Flight Rules is not permitted. This changes based on airspace but for the most part IMC means that flight ...
randomhead's user avatar
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3 votes
1 answer
203 views

Can aircraft in formation shoot instrument approaches as a formation?

Formations taking off and landing together is obviously a thing in VFR, but I'm curious if these operations are possible/remotely safe when the formation is flying in IMC. Example: A two-ship flight ...
William Walker III's user avatar
2 votes
1 answer
165 views

Why does the FAA allow a dual receiver check for IFR

FAR 91.171 allows a pilot to use independent VORs to do the VOR check as opposed to using a testing facility. The reg says as long as they are within 4 degrees of each other the pilot is good to go. ...
Name's user avatar
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4 votes
2 answers
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How to determine QNH zones like New Zealand did?

I saw a file stating that New Zealand has 11 zones and was wondering how it was determined and divided, does anyone have any idea? the paper offers a short description that doesn't cover much ...
Zol613's user avatar
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6 votes
1 answer
450 views

Why do airliners over south-west Europe cruise at flight levels with inversed numbers?

Over North America and Europe, usually when airliners go east (heading 0-179) they cruise at a flight level with an odd number (e.g. FL370) and when going west (180-359) they cruise at an even number (...
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