How Do Pilots Know When To Start Descending For Landing?

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For some (or probably many) aviation enthusiasts who aren’t pilots, knowing exactly when to start descending towards the airport is a topic that mystifies them. The variables that impact this calculation are considerable, as pilots need to factor in speed, wind, distance, and altitude, just to name a few.
Obviously, it’s a necessary skill for a pilot to have, and they have a variety of ways to figure out when to start a descent.
This ranges from quote unquote "quick and dirty" mental math, up to precise computer analysis.
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Опубликовано:

15 сен 2024

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Комментарии : 38

@MarcPagan 14 дней назад

From a pilot - Well researched and presented. 👍

@BertFlanders 12 дней назад

Top of descent is the FL divided by 3. The result is the distance in Nm.

@rtbrtb_dutchy4183 12 дней назад

Depending on airplane. Some work out if you divide by 2.

@BertFlanders 12 дней назад

@@rtbrtb_dutchy4183 It actually is about the VVI you intend to accept. And postponing the TOD (and hence a greater descent rate) is more economical.

@finleydoyle 8 дней назад

So is the 3 the degrees the aircraft decreases at on par with the runway? So it could be changed to be 2, 4, or 5 degree landing?

@BertFlanders 8 дней назад

@@finleydoyle The glide slope of a precision approach (ILS) i stypically 3 degrees. Steeper glide slopes are possible, but as from the moment the approach is labeled as 'steep approach' (e.g. London City) it may require additional aircraft avionics and pilot training.

@graemecatty9921 8 дней назад

Excellent video.

@captainzeppos 7 дней назад

High energy approach is my business in MSFS. Every single time. I should really consider starting my TOD 2 light years from the airport.

@AviAeroAsis 14 дней назад

Good video!

@awatercolourist 14 дней назад

This is a very interesting video. Thank you for making and uploading it.

@slurrymcgurry954 14 дней назад

Love the channel. I was just too dumb to focus on all that maths 😂

@ianlongden1449 14 дней назад

MathS, not math. Thank you.

@user-yz3sn9un1m 14 дней назад

Thank you!

@rajaampattravel 13 дней назад

WOW! Nice Video!

@pmbuthia4210 10 дней назад

this is those aviation questions that I've always wanted know, but too lay to research

@nurrizadjatmiko21 14 дней назад

I know some in this topic video and i like it.

@sliferxxxx 14 дней назад

I don't know about elsewhere but in the US most airports have STARS with altitude crossing restrictions that set airplanes up for approach and landing. Then they have to be at specific altitudes to shoot the ILS or RNAV or other instrument approaches.

@xanderjelly3242 14 дней назад

Nice video

@pbear6251 14 дней назад

Wouldn't the whole flight from one airport to another be included in the flight plan? Including ascent and descent?

@BenG0 12 дней назад

Yes but these would just be the ‘planned’ route. On the day that changes significantly whether that be shortcut to different waypoints or clearances to different levels. Sometimes higher or lower the the final flight level requested.

@pbear6251 12 дней назад

@@BenG0 Thanks!!😀😀

@lordshiva3916 14 дней назад

What about ils, doesnt that help the automous systems get close to landing

@Maverickf22flyer 6 дней назад

When they run out of fuel! Joking! It depends on company policy, regulations and also, more important form an engineering perspective, glide ratio of the aircraft.