Great Circles and Rhumb Lines - Types of Routes

[@starpawsy]

This is right on point. There are so so so many people in Flight Simulator forums that have no idea about this. The GPS flies a great circle route, which when you're doing something like LAX - Rome is quite curved, and they keep insisting it is "wrong".

[@JovenJB]

Excellent explanation! Not too mathematical but practical.

[@TC-BCN]

Great narrative and explanation as usual, thanks a lot.

[@MartiusCoriolanus]

He says the great circle is the shortest route "by definition". That's not an explanation.

[@747-pilot]

Wow! This Robot-man did a great job explaining these concepts! 😂

[@Sky_hwk]

This video is incredibly informative! I’m so grateful for your efforts!

[@MegaCaptsparrow]

Perfect ! This is how things should be explained!👍

[@mikjackson1]

Great video, now Im totally clear on the differences and it makes complete sense. Thank you!

[@jaidmulla]

Just simply you explain man good HATSOFF😊👍

[@jakubtrela1680]

Wow, you helped me a lot. Thank you for your content.

[@riyankasaha2565]

What an explanation ! Loved it.

[@brianle6676]

It’s really useful presentation for me and thanks Sir! From 🇻🇳!

[@steveducati996]

Excellent explanation, thanks

[@komisanchiefcommander]

It's so good to refreshed the old subject. Thank you!

[@sophiealoni5229]

Well explained, good video thank you

[@tamannasafa8775]

Great content.

[@mouradrezig9101]

It’s was very good explanation thank you very much

[@ianjohnson1249]

Such a great channel, so helpful

[@madeelajmal6111]

Great Work Sir. Your Videos Help Me Alot❤️

[@Kilgurt]

Excellent! Thanks!

[@neelamtollum4860]

It was very helpful thanks

[@sephefox]

Thanks for this video, but I want to point out a problem with your terminology about distances. In the graphic shown at 0:36, it shows large distance measurements labeled as "large scale" and short distances as "small scale". Actually, a large scale map would be one that shows a smaller area, or shorter distances than a small scale map. This is because the word "scale" refers to the ratio between a measurement on the map and the distance it actually represents on the ground. So in a small scale map, of say a continent, would have a ratio of perhaps 1:10,000,000, and a large scale map, of perhaps a neighborhood, would have a ratio more like 1:1000. If you changed the labels to large distance and small distance, it would avoid the issue.

[@karhukivi]

You're right, but very few people use those terms correctly, like the term "exponential"!

[@sephefox]

@@karhukivi true, but since this video styles itself as presenting geoscience concepts, I feel it should be correct.

[@karhukivi]

@@sephefox Yes, I agree. Most people don't understand that the scale is represented as a fraction, they see the area depicted as if it was a magnification.

[@sephefox]

@@karhukivi exactly. 1:1000 or 1/1000, is a relatively large map scale, which would only be able to show a small area, compared to 1:100000 or 1/100000, which would be a much smaller fraction, or smaller scale, and show a much larger area of the earth. Do you work in GIS? Not too many people think about these things, lol.

[@VictorLacasta]

So good!

[@andreweppink4498]

Thx. I'd not understood wha a ruumb was. Now l can easily see that rhumb segments are best to closely approximate Great Circles. Now l know!

[@JessyP-u6q]

Thank you Great circle

[@envitech02]

Excellent tutorial!!! Oh where were you during my pilot student days??

[@arazali4002]

It was more than good thank you so much.

[@shrikrishnaaghaw5317]

Nice information...sir...👌👌👍👍🙏🏻🙏🏻

[@MrManou1973]

Very helpfull - Great!

[@blurossi7099]

Great content!

[@Hans_Magnusson]

Just the obvious observation. We have past the era of Columbus, and we have great navigation tools such as the GPS in combination with automation of navigation in three dimensions plus the time domain…! It’s rather easy to navigate the great circle with today’s modern equipment! But yeah, the theory and manually finding the correct waypoints is a task for the dedicated person

[@heinhtetaung496]

I wish you to make more videos.

[@dhonnytheodoro5754]

Thanks a lot !

[@jotaro6390]

Please, can anyone tell me where can I find a textbook or document where this thing is written. I need to cute it

[@micromanbusinessrd]

Peerless Detailing of GreatCircle, *ThanksUp* Sir how about great circle of moon ?.

[@Favic_T]

wow I love this

[@ali1989turk]

Thanks ❤

[@BobbieGWhiz]

Do you also answer calls and tell me which number to push for billing?

[@rickdemaria3737]

Great circle routes are not “curved” paths. An aircraft flying a great circle route would be flying a straight line to its destination as viewed from above on a lambert conformal projection chart. Due to the navigation aid we use “magnetic” the mag course will continually change, so we are only correcting for the magnetic difference along the route…..but the aircraft does not change heading either left nor right, we only can fly a straight line if we consistently correct for mag differences. It only “looks” curved because you’re not looking straight down on the flight route. You have to look at the route as an orthodromic representation. “3D”

[@NyquillaGorillaKilla]

I was confused on this. One second it’s straight and the next you have to turn the plane to ride the curve.

[@abcxyzindia1269]

Thank you sir

[@borissore9249]

If it is sphere in calculation, why the great circle trough sphere is not larger then trough equator?

[@orenji4476]

Thank you

[@dirkbuys9498]

Nice video and every time I think I have it it's gone again :-)

[@rickdemaria3737]

When flying along a great circle route, pilots do not have to turn their planes left or right to stay on course. But, throughout the flight, the apparent compass heading of the plane will change, because the compass is aligned with the meridian great circles, which are not parallel to each other (they intersect in the north and south poles). Here is a video on on the subject. kzbin.info/www/bejne/imWUn5yvbNiVnaM

[@NyquillaGorillaKilla]

So on the 3d model the great circle route was actually straight, and the earth is in fact 3d then why wouldn’t you be able to just fly straight then? Just a tad confused.

[@963hz]

Can’t the autopilot make the constant adjustments flying the great circle routes?

[@the7engine]

Technically on a great circle route there are no turns…the rhumb line is constantly turning left or right the whole flight.

[@BriansLogic]

If you want to sty in the air as you're going to require lift to fly ?

[@muzikgod]

@@BriansLogic You had a choice to learn or not learn, you chose not to learn, conspiracy nut confirmed. :)

[@silo3com]

Damn i love this

[@arthurburicand7213]

thanks

[@naorhayon655]

This is of course, assuming that earth is indeed a sphere and not flat

[@mannyfreeesh5256]

So the earth isn't flat? Who would've thought... 🤷‍♂

[@randomviewing4340]

It is flat, cannot use a great circle given Mercator projection map is flawed you would need to use the accurate map Gall-Peters projection. Even then we cannot see any curvature and Neil D Tyson admits no one should be able to see the curvature unless you're 128,000 feet! Lies and coverup

[@mannyfreeesh5256]

@@randomviewing4340 Wow, you've convinced me...

[@marsa7600]

​@@randomviewing4340 😅😅😅

[@marsa7600]

​@@randomviewing4340 Mercator is being used for nautical charts.

[@stevenblack7928]

@@mannyfreeesh5256 You just fell for @randomviewing4340 ' s sarcastic joke😅

[@andreinechaev2955]

Thank you so much.

[@leonjacobs3426]

But if I'm traveling from chile to south africa why go to spain first?

[@marsa7600]

Because that route is not profitable for airlines? By the way, there is a direct flight too.

[@max5250]

@@marsa7600 This has nothing to do with profitability, but with international regulations. Namely, an airlines from Spain is not allowed to fly directly from Chile to South Africa, but only from Chile to Spain, and from Spain to Chile. if there was no such regulation, there would be situations where big international airliners would establish lines between profitable destinations from smaller countries, and they would push out smaller domestic airliners.

[@muharamnur5588]

now, i known

[@ADAPTATION7]

There is theory, and then there is reality.

[@marsa7600]

Yes and this is reality.

[@isthebiblefromheavenisthee4923]

"a Plane on a "sphere" - Yeah, let's "pretend" Earth is flat for a while, do all these calculations, and then go back to the "globe" and say Earth is a spinning ball in space!

[@marsa7600]

Ok, the Earth is a planet that is rotating around its axis in 24 hours.. "not a spinning ball"

[@GENERAL50CAL]

The Earth is Flat

[@AlexFoxthrot]

This video proves you wrong but thanks for sharing your personal opinion, kid.

[@BriansLogic]

@@AlexFoxthrot What lies lol you never stop, tell me how often do you dip the nose of the plane below Horizontal during cruising altitude flight ????

[@muzikgod]

@@BriansLogic Why are you proud of being dumb and ignorant?

[@dreamdiction]

Load of bull, if you have a globe at home you can use a piece of red thread to show that the direct route is the shortest route.

[@23Godsmessage32]

Doesn’t work with a white thread? 😂 clearly you haven’t tried it and saw someone do it in a video and they used a red thread.

[@dreamdiction]

@@23Godsmessage32 It doesn't work if you use a polystyrene globe and a hot thread.

[@AlexFoxthrot]

@@dreamdiction Hilarious how people like you tell others how to do their job. You are not a pilot and never did any navigation.

[@dreamdiction]

@@AlexFoxthrot Any inter-continental pilot knows a globe and a thread shows the most direct route.

[@AlexFoxthrot]

@@dreamdiction Every pilot, no matter the rating, knows it's a Globe and Great circles are the shortest route so What's your point?

[@WillSmith63957]

The Earth is flat anyone who can think knows it

[@marsa7600]

Not flat.