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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What do you need to have onboard for flights with an ultralight/sport aircraft over water (Atlantic, Pacific)? Life raft possible (weight/size)?

Remark: For us in Germany an UL is a 2 seater with 470/600kg MTOW. AFAIK those are named Light Sport Aircraft in the US/Australia. Example: https://en.wikipedia.org/wiki/Ikarus_C42 What do you use if ...
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TAS from POH or e6b

I always calculated my TAS at any cruise altitude by Using my planned cruise (pressure) altitude, temperature Plug desired CAS, PA, temperature into e6b and get TAS But I've also seen people get TAS ...
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How many alternates should I prepare PPL checkride cross country?

I have a PPL checkride and the first portion of the exam is a long cross-country journey of about 300 miles. I know I'm expecting a diversion in there somewhere. But in general and for checkride ...
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CoG Envelope Calculation - Am I Doing Something Wrong?

I'm doing some pre-planning for a bush flight with the Icon A5, and I'm at CoG calculation. This is the W&B form from the A5's POH: I weigh 225 lbs. I'm simulating 111.6 lbs of gear which can be ...
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-4 votes
1 answer
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What are Market Share, Market Size & yield in aviation network planning? [closed]

I came across the terms Market share, size & yield in aviation network planning. I don't really know what that means, anyone can provide me with a simplified explanation or maybe a reference where ...
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1 vote
1 answer
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How to fix JeppView VFR charts font display [closed]

Some of the VFR charts printed by JeppView for Windows incorrectly display various letters on the map. This is especially visible in the NDB/DME designations ("INN", "PAT", "...
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6 votes
1 answer
206 views

How to "address" a flight plan to additional stations

Airspace around the Swiss village of Davos is restricted as part of the World Economic Forum every year. The amendment to the Austrian AIP instructs pilots who would still like to cross the affected ...
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1 answer
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Number of US Commercial Aircraft versus Rest of the World

I have been trying to obtain information on the number of commercial passenger aircraft (i.e. jetliners) that US airline companies have compared with the number airlines for the whole rest of the ...
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2 answers
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How do I calculate the point of no return for a flight with multiple legs?

In every textbook where Points of No Return (PNR) are discussed (or at least, those I've read), the method of calculating them is always between point A to point B as a direct route. This is simple ...
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How to calculate time-of-arrival of airplanes to a neighborhood of a position (with minimum probing)? [closed]

Suppose we have a position on earth with coordinates: (latitude, longitude). I'm looking for methods, algorithms or APIs to get a time alert that a plane would fly ...
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4 votes
3 answers
156 views

Why is the listed sectional for KEIK Cheyenne instead of Denver?

I'm confused why a municipal airport (KEIK in Erie, CO) lists Cheyenne as its appropriate sectional, instead of Denver? It's just over 20nm WNW of KDEN under its outer class bravo shelf and is well ...
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Since 9/11, for international flights, have any airlines made regular technical stops in the US?

Since 9/11, has any airline had scheduled international passenger flights with a technical stop at any US airport? (A technical stop means all passengers and crew stay on the plane without going ...
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How can I import Garmin Pilot checklist files into ForeFlight?

Inside the airplane that I am training on, there is an iPad running the Garmin Pilot app with all the checklists for that plane in the app as a "Checklist Binder". I use my own iPad (a ...
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3 votes
1 answer
160 views

Can you fly to a U.S. border airport without any paperwork?

In most cases, one can fly VFR in the U.S. without any flight plan. However, if you are crossing an ADIZ, it is my understanding that you have to file a DVFR flight plan. Consider an airport such as ...
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8 votes
1 answer
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Does SkyVector's flight plan give wrong magnetic variation corrections?

Lately I have noticed that Skyvector's Flight Planning tool "Nav Log" has been showing very wrong magnetic variation corrections for particular legs of my flight plans. The corrections ...
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1 answer
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Where can I find no fly zones such as active stadiums while doing flight planning?

I am a student pilot in training for a PPL. I read that it is illegal to fly over a stadium filled with people, but not illegal to fly over stadiums that are not filled. Obvious reasons, of course. ...
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Are TIBS and TWEB in Alaska discontinued?

My 2021 paper edition of FAR/AIM still mentions TIBS (7-1-8) as Alaska-Only, but when I look at the Alaska Chart Supplement I can't find any TIBS numbers. https://aeronav.faa.gov/Upload_313-d/...
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2 answers
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Does endurance include the fuel reserve time?

I have been wondering if endurance time actually includes the fuel reserve time? For example: Total usable FOB = 84 litres Fuel burn rate = 16 litres/hour Aircraft's reserve fuel = 30 minutes ...
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1 vote
0 answers
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All approaches at airport NA for Alternate planning. Does that mean the same as Airport NA for Alternate if VFR landing is planned?

Jeppesen will use the term "NA" in the "For Filing as Alternate" table if all the available approaches at the given airport are not available. For FAA charts, a pilot will know ...
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4 votes
1 answer
487 views

Where is the V3 airway mentioned on the ILS 34 approach plate for KPSM?

While drafting a simple flight plan for KBOS to KPSM, I noticed that the ILS 34 Approach plate for KPSM mentioned that the procedure turn is "NA for arrivals at PSM VOR/DME on V3 northbound":...
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7 votes
2 answers
309 views

What sort of briefing and planning information would an airline pilot in the 1960-70s have used?

Slightly related: Do airliners get substantially different weather briefings from the rest of us? Highly related: How was the navigation managed on jetliners before having programmable routes? Highly ...
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How do I read this flight plan route?

When I create a flight plan using SimBrief, for example for London Gatwick (EGKK) to Dublin Airport (EIDW), it generates the following route: ...
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83 votes
1 answer
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Why did this FedEx flight (FDX1311) take such an indirect route multiple times?

I was looking at flights from DEN -> MEM, and saw this extra-long route that FDX1311 took last night (9 Aug 2021) Thinking they were probably just avoiding storms, I scrolled down and saw there ...
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1 answer
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What are the ICAO RNAV equipment codes for the non-WAAS G1000 and GNS 430W?

When filing an ICAO IFR flight plan, where in "the manual" (which manual?) for a G1000 and a GNS430 do I find the RNAV capability information for an ICAO flight plan? What am I looking for?
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2 answers
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Is it possible to file for a flight level ABOVE an Airway altitude limitation (for high en route airways)?

I'm just curious if it's ever possible to file for, and/or fly, an altitude that is above an airway restriction. Say if the airway has an altitude restriction of FL410 or less. Is it ever possible to ...
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8 votes
2 answers
2k views

Does an IFR flight-plan include the approach?

I tried to create an IFR flight plan (at simbrief.com) and there is something I don't get: Are we supposed to know the runway/approach at the destination airport before taking-off, and add it to the ...
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1 answer
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What factors cause a turbine aircraft to have decreasing fuel burn over time?

Consider a fictional aircraft with a fuel schedule similar to the following: ...
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2 answers
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Can a pilot amend a flight plan in-flight?

Which information pilot can change in-flight? For example: Altitude. Ask to climb higher? V to Z. VFR rules to IFR (VFR to IFR)?
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12 votes
3 answers
1k views

How is flight planning performed with short turnaround times?

For low cost carrier short-haul flight such as Dortmund-London I have experienced multiple times that turnaround times are around 20-25 minutes. In such a short time what is included in the flight ...
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3 votes
2 answers
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What documents/procedures I have to follow to fly my aircraft from the UK to Norway?

I'm planning a trip to Norway for when Covid restrictions here in the UK are lifted, and was wondering what documentation is needed to enter Norway. I've already emailed AVINOR, and they simply gave ...
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5 votes
2 answers
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When filing a VFR Flight Plan, where/how do you include intent to use a Class B transition?

When intending to use a VFR transition route through Class B airspace, do you put the intended route on the flight plan, the alternate route (if you don't get clearance for some reason), or both? ...
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7 votes
2 answers
2k views

If an airliner turns back midway, how is the route planned?

There's several incidents of "flights to nowhere", e.g. https://onemileatatime.com/klm-787-nine-hour-flight-to-nowhere/ After a pilot decides to turn back, how is this handled from a routing/...
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1 answer
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How to get an accurate time of arrival to the en-route alternate airport during flight planning?

I was thinking about accurate criteria of selecting en-route alternate (ERA) weather from ground (planning stage) especially for ERA 3% contingency flight plan. As we all know we should care about one ...
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1 answer
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How does an airline decide when to cancel a long haul flight permanently?

BROAD QUESTION WARNING: Obviously the airlines cancel the routes because they are not making money, but would that not have been factored in when they start a route? For example, the current SFO-BLR ...
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What is an Air-Filed Flight Plan? Are aircraft capable of filing flight plan when in flight?

ICAO Doc 4444 mentions to input AFIL in the departure field of flight plan if it has been filed in the air. What is an Air-Filed flight plan? Can aircraft crew file a flight plan in-flight? If yes ...
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2 votes
1 answer
128 views

How do you avoid power of 10 or order of magnitude errors when using an E6B calculator?

I am currently working through Gleim's instructions for using their E6B calculator. It says: "The numbers on the inner and outer scales represent multiple sof 10 of the values shown." And &...
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1 answer
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How to calculate Night Flight time for a given flight? [duplicate]

I am currently working on a project (web app) at university to be able to calculate the amount of time spent during night flying. Currently, I have, Departure Lat and Long and Departure Time in UTC ...
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1 answer
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What is the difference between a navigation database and an airport mapping database?

What is the difference between "navigation database" and "airport mapping database"? Are those both required by flight management software for flight planning?
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4 votes
2 answers
590 views

Do aircraft weigh less on an eastward flight than a westward flight, due to the Eötvös effect?

Aircraft speed is added to earth rotational speed when flying to the east, centrifugal force is increased compared to a westward flight. That means the aircraft weight is reduced = smaller lift, means ...
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1 vote
1 answer
152 views

Why westward flight takes longer time? [duplicate]

• Why fly from east to west takes longer time then flight form west to east and does this apply to both hemisphere?
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8 votes
1 answer
255 views

Can you change airways when they cross without a named fix?

There are a few victor airways that cross without a named fix, just two solid lines drawn over each other on the IFR low charts. Can these be used as intersections for changing airways in IFR route ...
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What is the difference between the WSUSnn IDs used in convective SIGMETs?

When NOAA issues a convective SIGMET, it falls under one of three bulletin IDs: WSUS31, WSUS32, or WSUS33. Below are three examples from the current forecast. WSUS31: ...
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5 votes
5 answers
571 views

Why is fuel quantity expressed in flight hours [duplicate]

Going through a few aircraft documentaries online, I've noticed the thing that they usually express the fuel quantity in flight hours. Ex - A 747 burns 4 litres of fuel every second. So with a ton of ...
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1 vote
1 answer
145 views

How are thermals mapped in real-time?

Related to "How thermals are found" this question about "Gliding your plane to save fuel" details how to use thermals to save fuel. To use thermals to maximize range, can thermals ...
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0 votes
1 answer
272 views

Difference between Flight path and Route [closed]

What is the Difference between a Route and Flight path
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4 votes
1 answer
672 views

Why are some airports not allowed as IFR alternates, even if conditions there are VFR?

Why are some airports disqualified for use as an alternate (as listed in a approach procedure for that airport (A N/A)), when there is a provision in part 91 that an airport without an instrument ...
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3 votes
2 answers
641 views

What is the difference between "Standard Metric Level" and "Altitude" in ICAO flight plans?

What is the difference between "S" and "M" in flight plan altitudes? The FAA's ICAO flight plan documentation says: Standard Metric Level in tens of meters, expressed as S followed by 4 figures (...
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0 votes
0 answers
86 views

Why do planes generally curve north and not south? [duplicate]

I know that the shortest distance on a sphere is a curve and not a straight line, so that's why planes curve when they fly. But why is that planes curve north and not south? For example, when if I hop ...
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2 answers
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When do pilots use NOTAMs? [duplicate]

Usually, pilots will check NOTAMs during pre-flight prep. Are there some situations where they use them in a specific flight phase? If yes, in which case would it be useful? Thank you
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0 votes
1 answer
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What is the difference between company routes and pilot routes?

I was trying to find out what are the different route types(flight management system) and found out there is one company route and one pilot route . Are there more different route types ?.What is the ...
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