You have just explained in 15mins what I have been reading about for the last last few hours. Absolutely spot on, subbed and will be using you as my go to during my studies. Thank you!
Thank you for the great content. And thank you for the "side thought". I was getting frustrated with the books I have jumping all over the place. Glad to hear it was not me failing to see the logic of it.
1st of all thank you so much for your videos, really well explained and easy to follow! Question: For the Lambert chart the GC is the straight line, correct? so why on the example you draw it as the curve line and the RL as the straight one? thx
Question…I have a paper whereby a reference is made that N29 degrees is the “latitude of origin” and standard parallel #1 is N29.58 degrees and standard parallel #2 is N30.75 degrees. The average of these two parallels is 30 degrees and 10 minutes. So how is N29 degrees the origin and not 30 degrees and 10 minutes?
Hello, thanks for the video ! Question about the convergency : I know that Conv = sin(Parallel of Origin) for a Lambert Chart, but isn't it too equal to Change of Longitude * sin(mean latitude), hence sin(30) ? I could understand that we are on Lambert Chart Chapter so we will take sin(Parallel of Origin), but how does "sin(mean latitude)" become false to use ? i really don't understand that Is that maybe because Convergency = 270-265 works only because we are on a Lambert Chart ? Thank you for your help !
The parallel of origin might not always be the mean latitude. Usually it is and it's a nice even looking lambert's chart, but you may get one that has a parallel of origin that isn't necessarily half way up the chart. Basically if you are given a parallel of origin use it, if not then default to sin(mean lat).
I assume you're talking about 8:50? If both points are on the same latitude then a rhumb line between them will follow along the parallel of latitude. Parallels of latitude are arranged in an east to west direction, so if we follow them we either travel True East 090 or True West 270. In this example we are travelling along the meridian/rhumb line to the west: 270.
@@atplclass i understand it now thanks Alot . However At the of your answer you said 'travelling along the meridian/rumb Line ' . Why meridian ? We're traveling along the rumb Line which happens to be a parallel of lattitude 30S . Not a meridian, I Guess its a mistyping ?
I think I've seen a question that asks what happens to the great circle line passing through the point of origin We usually assume the GCL is straight, but the correct answer was, it is concave to the parallel of origin, ie, it curves away from the POO On a question bank*
If the points are on the same parallel of latitude then if we follow that line either east or west we are travelling along a rhumb line. In this case we are travelling along the parallel of latitude from one point to the other directly west, which is 270 degrees. Then we have 265 for the great circle, hence the 5 degree difference.
Very clear explanation. Could not get my head around these concepts until i studied your video. Big thank you for putting this together. NB: PPL only so it was a bit of stretch for me.
The constant of the cone is just the factor that we multiply the change in longitude by to find the changes in angles on these charts. So while convergency and constant of the cone aren't the same thing exactly, basically they are, they are doing the same job of converting angles.
Hi, put your business email so that sponsor can contact you. Also, can you explain and show a sample of how an exam is structure e.g. is it multiple choice or are answer given in A,B,C,D or are we to write statements in answer boxes
![ILLSLICK - THE KING'S LANDING [Freestyle]](http://i.ytimg.com/vi/feIJJnNkTfk/mqdefault.jpg)
You have just explained in 15mins what I have been reading about for the last last few hours. Absolutely spot on, subbed and will be using you as my go to during my studies. Thank you!
Welcome aboard!
That's what the doctor ordered - my gnav exam is coming up soon, your videos have helped me out a lot! Thank you very much!
Best of luck!
Thank you for the great content. And thank you for the "side thought". I was getting frustrated with the books I have jumping all over the place. Glad to hear it was not me failing to see the logic of it.
It's normal in most subjects I think. You don't know what is going on until a chapter in the future back fills the information.
Love these videos, found your channel now, thank you
1st of all thank you so much for your videos, really well explained and easy to follow!
Question: For the Lambert chart the GC is the straight line, correct? so why on the example you draw it as the curve line and the RL as the straight one? thx
That is correct, I may have just labelled them a bit clumsily?
Question…I have a paper whereby a reference is made that N29 degrees is the “latitude of origin” and standard parallel #1 is N29.58 degrees and standard parallel #2 is N30.75 degrees. The average of these two parallels is 30 degrees and 10 minutes. So how is N29 degrees the origin and not 30 degrees and 10 minutes?
11:06, shouldn’t the GC be drawn on the other side closer to the South Pole and concave to the equator?
GC are straight lines on a Lamberts chart. Rhumb lines are curved.
@@atplclass ah sweet, thank you.
Hello, thanks for the video !
Question about the convergency : I know that Conv = sin(Parallel of Origin) for a Lambert Chart, but isn't it too equal to Change of Longitude * sin(mean latitude), hence sin(30) ?
I could understand that we are on Lambert Chart Chapter so we will take sin(Parallel of Origin), but how does "sin(mean latitude)" become false to use ? i really don't understand that
Is that maybe because Convergency = 270-265 works only because we are on a Lambert Chart ? Thank you for your help !
The parallel of origin might not always be the mean latitude. Usually it is and it's a nice even looking lambert's chart, but you may get one that has a parallel of origin that isn't necessarily half way up the chart. Basically if you are given a parallel of origin use it, if not then default to sin(mean lat).
@@atplclass yeah okay thank you for your answer !
Why Is thé angle between the rumb Line and meridian 270° ?
I assume you're talking about 8:50?
If both points are on the same latitude then a rhumb line between them will follow along the parallel of latitude. Parallels of latitude are arranged in an east to west direction, so if we follow them we either travel True East 090 or True West 270. In this example we are travelling along the meridian/rhumb line to the west: 270.
@@atplclass i understand it now thanks Alot . However At the of your answer you said 'travelling along the meridian/rumb Line ' . Why meridian ? We're traveling along the rumb Line which happens to be a parallel of lattitude 30S . Not a meridian, I Guess its a mistyping ?
@@kindheart7703 Yeah i hadn't noticed that but it was just me misspeaking
@@atplclass thank you again for your videos We appreciate thèm Alot . Keep going ☺️🌸
@@atplclassif i Get an excercise with different lat, how can i risolve it? Thanks!
is he saying draw the f-ing picture 🤣🤣
I am. It helps a lot!
I think I've seen a question that asks what happens to the great circle line passing through the point of origin
We usually assume the GCL is straight, but the correct answer was, it is concave to the parallel of origin, ie, it curves away from the POO
On a question bank*
But how did you get the 5 degree angle between great circle and rumbline?
If the points are on the same parallel of latitude then if we follow that line either east or west we are travelling along a rhumb line. In this case we are travelling along the parallel of latitude from one point to the other directly west, which is 270 degrees. Then we have 265 for the great circle, hence the 5 degree difference.
Very clear explanation. Could not get my head around these concepts until i studied your video. Big thank you for putting this together. NB: PPL only so it was a bit of stretch for me.
In the beginning of the video you said that constant of the cone is the same as convergency. It is wrong, const of the cone is only sin(PoO)
The constant of the cone is just the factor that we multiply the change in longitude by to find the changes in angles on these charts. So while convergency and constant of the cone aren't the same thing exactly, basically they are, they are doing the same job of converting angles.
Hi, put your business email so that sponsor can contact you.
Also, can you explain and show a sample of how an exam is structure e.g. is it multiple choice or are answer given in A,B,C,D or are we to write statements in answer boxes
I think it's multiple choice still. Instagram DM for any business requests.