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Questions tagged [flight-planning]

Flight planning is the process of preparing for a flight: planning a route to fly, identifying alternate destinations in case of diversion, calculating required fuel, ensuring the aircraft will not be not overloaded and so on.

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60 views

Can a Skylane fly without electricity?

Some Hobbs Meters uses master electricity switch to keep the track of time. So what If an cheapskate Skylane pilot wants to fly without electricity to lessen rent? Which main six instruments would ...
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1answer
83 views

Is the “auto-routing” created by online flight planning resources preferred by ATC over Direct routing when NO preferred route exists?

I noticed that when I use online flight planning resources, they provide an "auto-routing" option for my flight. I also noticed that they are the same between both services so it seems like both are ...
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118 views

Is it ever allowed to list your destination airport as the IFR alternate too? [duplicate]

Is it legal (in certain conditions) to have your primary airport of intended landing, also listed as the alternate?
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65 views

What ISA temperature to use in the density altitude calculation?

In the density altitude formula: DA = PA + [120 x (OAT - ISA Temp.)], should one use the ISA temperature at the field elevation or the ISA temperature at the pressure altitude?
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75 views

To use the equipment suffix “G”, does the GPS have to be certified for IFR?

To use the equipment suffix "G", does the GPS have to be certified for IFR flight?
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107 views

Flight plan departure procedures vs real life departure procedures

In the flight plans there are included departure procedures. However, sometimes something can change eg. different runway is assigned by ATC and then departure procedures in the flight plan is invalid,...
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1answer
54 views

Why does FAA not include certain SIDs and STARs in its CIFP file, even though they are regularly used in flight planning?

I was correlating the instrument flight procedures found in flight plans from 1st April 2019 with the ones included in FAA's CIFP database. I noticed that in those flight plans there are some SIDs and ...
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26 views

What is the name of the format of route with the dots? Eg. DTW..LAYNE.DXO006 (…)

I found in our data a route formatted with dots instead of spaces and DCTs. Example: DTW..LAYNE.DXO006.BNNET.YQG341.DIRKS.J38.GRB/0052 What is the name of this format? Second question: Sometimes ...
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3answers
229 views

Why would a flight take a detour on clean weather?

I was in a flight recently (march 22nd) from SBCF to SBGR (Brazil). It's usually a 1h10m flight, but mine took roughly 20 minutes more. I saw the flight path in FlightAware and there's an unexpected (...
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2answers
6k views

Is the destination of a commercial flight important for the pilot?

As has been recently advertised (in here, here, here also), a recent British Airways flight from London City Airport destined for Düsseldorf mistakenly flew its passengers to Edinburgh instead. I'm a ...
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1answer
395 views

Why was Air India flight AI101 diverted to SHJ 5 times in the past few days?

Air India flight AI101 using a 777-300ER on multiple westbound and eastbound routes was diverted to SHJ airport in Sharjah, UAE. I am curious if there is a specific reason. It cannot be a coincidence ...
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74 views

What does the orange colored text in a SkyVector route indicate?

If you use a pre-made route in skyvector.com, sometimes there will be orange text. For example: from KIAD to KTPA with default cruise settings, the second route in the list will have DADES6 in orange....
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92 views

How to file flight plan with ZZZZ?

Wikipedia mentions, ZZZZ is a pseudo-code, used in flight plans for aerodromes with no ICAO code assigned. How pilot actually file this flight plan? Is there anything special to do when file for ...
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1answer
105 views

How is data exchanged between Eurocontrol and FAA?

Let's say I want to fly from Europe to USA. Then (probably): I'm filling flight plan message(FPS) and it goes to Eurocontrol system. It is somehow transmitted to FAA. How?
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1answer
107 views

Can active flight plan be sent for the aircraft in the air? [closed]

We are processing some aviation data and I wonder if it is possible that flight plan message can be sent for an active flight (aircraft in the air)? In the documentation we have the sentence: "...
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70 views

Which airspace requires what RNP?

How do I know which airspace requires what RNP value? More specifically, can I go from NY to London with just BRNAV providing I stay above the NAT HLA?
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177 views

What is the definition of mountainous area?

MEA, MORA, grid MORA, and MOCA for a non-mountainous area gives 1,000 ft clearance from the highest obstacle, and in mountainous area gives 2,000 ft clearance from the highest obstacle. But what is ...
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188 views

What is the purpose of including sea level pressure and temperature in a METAR?

In a METAR such as this one: KGOK 161553Z AUTO 18011KT 4SM BR OVC007 07/05 A3011 RMK AO2 SLP201 T00670050 Translated to: Jan 16, 1553Z, Automated. Mist, Wind from 180° at 11 knots, 4 statute ...
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105 views

How is the effect of wind on arrival time handled?

If a commercial plane encounters strong tailwinds, would the pilots set the autopilot for a fixed arrival time (if that is possible), or would it be ok to arrive way ahead of schedule? I imagine ...
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49 views

Can a SIGMET last less than initially forecasted?

Lets say I have a SIGMET that says VALID 310800/311200. Is it possible that by 1100 the SIGMET would not be active anymore or it will always be valid until the published end time?
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69 views

Is the route which takes the least time always the one with least fuel-burn?

Geographically longer paths may require less fuel than the shortest (great circle) path. But what about time ? Is the most fuel efficient route always the one that has the aircraft in the air for ...
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4answers
256 views

Can longer paths consume less fuel than the (shorter) great circle path?

Is the most fuel-efficient route between points A and B always along a great circle ? Although somewhat counter-intuitive, this comment on an aviation blog seems to suggest that longer paths (in ...
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In a flight plan, does it make any difference to write an increase of the flight level instead of writing a cruise climb?

According to ICAO 4444, a change of speed or level should be written in item 15 of the flight plan according to these rules: Change of speed or level (maximum 21 characters) The point at which a ...
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171 views

How do I include a STAR in an ICAO flight plan?

Would it be in accordance with ICAO norms to include a STAR identification right after the airway name in the field 15 of the flight plan? Or should the connecting point between the airway and the ...
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What time window size the Eurocontrol's IFPS considers when comparing the EET informed by the airline and its own calculated EET?

Excerpt from IFPS Users Manual Ed. 22.0 (chapter 34. PROFILE CALCULATION/ROUTE ANALYSIS): ...
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212 views

What are these symbols in Garmin Pilot?

When I start editing a flight plan in Garmin Pilot, if I have a distance that is farther (like 1,000 nm or farther) I get these two symbols in the map on the Flight Plan pane: One is a tower and the ...
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51 views

Performance Calculation with upgraded engine

I have an upcoming checkride and the DPE has asked to plan a cross country flight. The aircraft that will be used is a PA28-151; however, it has an upgraded 160hp engine. Regarding performance ...
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60 views

Does filing a flight plan with Garmin Pilot activate ACAS and SE-SAR for my inReach?

I have my aircraft set up with a Garmin inReach for ACAS and SE-SAR on 1800wxbrief.com. If I file using the Garmin Pilot app, will the inReach ACAS and SE-SAR work or only if I file on the 1800wxbrief....
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49 views

Operations Control Center

From flight planning to completion of flights, what are the different sections of an OCC and their functions?
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2answers
252 views

Would a refueling stop be cheaper than finding lodging for all the passengers?

This is somewhat late followup question to my original question. Basic story was flight got delayed by almost 24 hours because first, technical reasons, secondly temperatures were very high. As far ...
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2answers
328 views

Why did my transatlantic flight meander off the great circle?

I recently flew commercial to Scotland and was tracking our progress on my iPad using Foreflight. I made a direct-to line that followed the great circle route, but noticed that we meandered off of it ...
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1k views

When the winds aloft are light and variable, what wind direction and speed should I use for flight planning?

What do you input in a navlog for wind direction and velocity, when the wind and temp forecast says 9900+18? I know 9900 means light and variable winds less than 5kts but how do I determine the ...
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349 views

How does Air Traffic Control know a flight's route and destination?

I am trying to find out in layman's terms how does ATC determine the direction a flight has to take after takeoff, or when should it start descending for the destination airport. I understand it has ...
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2k views

How can I calculate the fuel required for a specific route and aircraft?

Okay, I'm writing a online game. I've got two airports and the equipment. For example: Heathrow - LAX on a 744. What I want to work out is the fuel required, as this will apply a cost to the airline. ...
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1answer
3k views

Does a headwind/tailwind affect your rate of climb?

I am still confused whether a head wind or tailwind would affect the rate of climb. Since in a HW/TW condition our a/c is basically still climbing in the same parcel of air, it is just that parcel of ...
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1answer
372 views

Why does Ryanair always fill its flight plans with the same remark?

With my current position, I have access to samples of ATC recordings, including all the flight plans received by a FIR. Parsing these recordings, I noticed that Ryanair always put the following ...
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422 views

Why did my flight descend for landing then suddenly climb steeply and turn sharply?

I was flying on a Vueling flight (VLG6251) from Rome, Italy to Orly, France on the 31st of December 2017. During landing, my plane went to a really low altitude as if it was about to land but there ...
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287 views

What are the customs decal and eAPIS requirements for flying to the Bahamas?

I'm planning to rent an aircraft and fly to the Bahamas. I've got all the requirements including the Restricted Radio license. However, there was another requirement which concerns paying of the ...
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2answers
207 views

What qualifies for “mass disseminated data” for an abbreviated briefing?

I'm reading about the different types of pre-flight briefings you can get and in the section for Abbreviated Briefing (AIM 7-1-4c) is mentions the phrase "mass disseminated data". Request an ...
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Why would a flight from Frankfurt to Madrid fly over London?

While enjoying the sunshine at the bank of the river Main in Frankfurt (Germany) this evening, I saw a LATAM B787-9 depart over the city center towards the north. This was slightly surprising, as the ...
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116 views

On an IFR flight, should I avoid class B and include approach fixes/procedures in the route?

When creating an IFR route, should one route around and avoid class B airspace? Should one include the IAF (Initial Approach Fix) of the desired IAP (Instrument approach Procedure) in your route? ...
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1answer
261 views

Does clearance delivery assign VOR or GPS-A approaches?

I've listened to clearance delivery feeds on LiveATC. Is it possible for clearance delivery to assign VOR or GPS-A approaches instead of standard terminal arrivals (STARs)? Or would they just give you ...
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1answer
342 views

Is the distance to PNR (point of no return) affected by wind?

Is the distance to PNR (point of no return) affected by wind? I did research it and found some links, but none discussed about the wind.
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1answer
496 views

What are the ICAO equipment codes for those Garmin units? [closed]

What are the ICAO equipment codes for those Garmin units? Garmin G500 / 750 / 650 WAAS navigators?
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3answers
695 views

How did KAL 007 get so far off course?

Regarding Flight 007 that got shot down in the Soviet Union, this was reported in the New York Times: Study Says Korean Airliner Was on Its Intended Course When Downed in '83 (nytimes.com) Excerpt: ...
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1answer
141 views

Does an aircraft equipment suffix denote how many VOR radios are installed?

I'm studying IFR. Does an aircraft equipment suffix specify if and how many VOR radios are installed? I'm guessing that the suffix is used by ATC to know if they can give you an RNAV or a an approach ...
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292 views

What is the english term for “vol en ficelle”?

From what I have read online and understood, "vol en ficelle" is basically a low altitude flight preparation method that requires calculating a set of altitudes to be followed in order not to crash. ...
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217 views

How to find the distance if the points are above Earth's surface? [closed]

There is a lot of information online about how to find the distance between two points if both the points are on the surface of the earth. But no article mentions about how to find the distance if ...
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1answer
316 views

How to select a SID during the planning stage?

During the planning stage of an IFR flight how to choose the correct SID for your route in an airport with multiple runways and multiple SIDs? and how to predict the runway you will be going to use?
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234 views

What is “temporary flight plan” in A320 MCDU?

I have been reading FCOM to undestand how MCDU works, there are severel mentions about "temporary flight plan". Does anyone knows what it is?