GNav Basics 4b: Convergency 2

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Re-uploaded due to some audio issues
This is the fifth video in a series covering the basics of GNav for ATPL students. In particular this is the second half of convergency, covering the convergency between rhumb lines & great circles, and conversion angle.
This series of GNav Basics also includes:
Video 1: • GNav Basics 1: Lat/Lon... . Refresher on Latitude & Longitude
Video 2: • GNav Basics 2: All Ab... . The Departure Formula
Video 3: • GNav Basics 3: Great ... . Great Circles & Rhumb Lines
Video 4a: • GNav Basics 4a: Conve... . Convergency (part 1); Earth Convergency.
As ever, if you've found this video helpful then I'd greatly appreciate it if you could give it a thumbs up - and subscribe to the channel if you're not already. And if you've got ideas for future videos, please leave them in the comments below.

Опубликовано:

23 июл 2024

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Комментарии : 98

@khalidalzadjali5083 2 года назад

you've made G Nav a lot easier than how it looked like. Thanks a lot

@TheGlorianos 3 года назад

I have to say, I went through so many vids on YT including a guy who basically wrote EASA questions (that's what he said), and based on your vid I finally got it...The best way of explaining it. Thanks!

@lukeb0wl3r79 Год назад

Never really leave comments but just wanted to say thanks for this video. I was stressing all of yesterday about getting my head around this topic... ended up watching your video at 2am and it's made the whole thing so much clearer. Really appreciate the time spent putting this together!

@asharsinha Год назад

Literally same.

@flimsywater5065 7 месяцев назад

I said it on Altimetry Video 2 and I say it again 1 year later. You are clearly a hero. Thanks again for your great explanation. Absolutely awesome!

@Lulusredrock 9 месяцев назад

Amazing video, helped me cleared a lot of confusions, thank you

@oumarkhan9761 3 года назад

Most helpful video on RU-vid for convergence angle numerical. I would like to personally thank you sir for such an amazing work.

@captainsaleh3444 2 года назад

Thank you will not be enough, god blessed you sir🙏🏽.

@rafalfly91 7 месяцев назад

Awesome explanation mate ! You are the best :)

@luisfelipedamiani9913 Год назад

GNAV made easy. Thank you!

@tribuneinvestments7378 Год назад

The explanation is so clear that it helps a fresher to start with these videos directly with very little knowledge. Honestly, I was trying to figure out questions themselves. let alone answers. The tips given in between the explanations are so helpful, I could understand the concept more clearly.

@Matt-wv2zt 7 месяцев назад

Thanks for the great videos mate, was struggling abit with this stuff but your explanations have made it easy, cheers!

@userDFboeing 2 года назад

probably one of the most useful gnav video ive seen, good job ;)

@rafalfly91 7 месяцев назад

Thanks for this video !

@fluidmove Год назад

Great Videos! Great explanations! Many thanks!

@markostajic3911 3 года назад

Amazing, i think i could pass my exams just by watching vids like yours :) Keep going!

@eddygamer0294 Год назад

Thank you so much! Great job!👏✈

@PurserArts 3 года назад

It's amazing the way you explain and show examples with pictures/graphs Thank you

@valerias5492 5 месяцев назад

Thank you Tom!!! ♥

@ammarsadaka7130 2 года назад

Thank you so much

@i_like-planes 2 года назад

Seriously, thank you so much for these videos. I get so lost sometimes and your videos are so clear and easy to understand.

@ricardoguerreiro2093 2 года назад

Life saving video for this subject! Really thank you for this. Cheers from Portugal!

@Capt.AtulDas 3 года назад

You are doing a great service for the community

@gerritooink2081 4 года назад

And again, awesome! Atm doing GNav and having problems with Convergency and Conversion angle. This one helps me out a lot! Especially since I started drawing those handy dandy sketches. Looking forward to videos of other subjects!

@ATPLTips 4 года назад

Ah that’s incredible to hear. Thanks very much :)

@gerritooink2081 4 года назад

ATPL Tips do you by any chance offer some help in private via Skype or FaceTime, if there are urgent problems or is that all about your videos? Best Regards :)

@ATPLTips 4 года назад

Hi Gerrit, nobody has asked me to do that yet. I’m sure something like that would be possible. Why not send me an email about the type of things you’re stuck on; tom@atpltips.com and we’ll try to work something out.

@alges13 3 года назад

Keep up this GNav series ! Thank you so much ! +1 Sub

@Pilot_Mar 7 месяцев назад

honestly you're the best, made Gnav so much easier thank you!

@vitorfernandes3674 3 года назад

Great videos ! I I really enjoyed them, it made me understand this subject way easier. Thanks! keep it up!

@ATPLTips 3 года назад

Thanks :)

@mikenyagawa3929 8 месяцев назад

Thank you!!

@mukulthakur4220 3 года назад

Thanks sir you are an excellent teacher and all this knowledge you are sharing for free .. respect ✊

@charlylesuedois4129 2 года назад

Thank you so much your videos help me for my ATPL exams

@charlylesuedois4129 2 года назад

One quesriin from ATPL question very interesting to explain if you want is question number 619541. Thanks

@FlyLeah 4 года назад

Thank you for the videos! Me and my friends found it so so helpful!

@ATPLTips 4 года назад

Great to hear :)

@chrisr8996 Год назад

Luckily my helicopter would run out of fuel 3 times over before calculating a GCR became a factor and most of my flying was at the equator (where 1° lat/long is 60nm no matter which way you turn). That allowed me to dodge the topic for many years, but your videos finally made me grasp trigonometry - 25 years after doing it in high school! Thank you for creating such terrific content, you're a natrual born instructor!

@Helitacki Год назад

Hey Tom, your videos are awesome! They helped me a lot with the whole topic of GCT and RLT in my ATPL(H) Exam Thank you for doing such a great job! :-)

@dominikakronsteiner2522 3 года назад

Thanks so much! I think I may just pass because of your videos! Love how you explain things and stress the fact how important drawings are :) thanks again for providing these free videos! Much more valuable than any in person lessons I had

@peterbrandreth03 3 года назад

Thanks for your help with this video, really cleared it up for me

@Bhavrageaverage 4 года назад

Excellent video, following your method compared to my flight schools has been so much more helpful! Keep it up!

@ATPLTips 4 года назад

That’s really great to hear!! Thanks for letting me know :)

@oumarkhan9761 3 года назад

Absolutely helpful

@mohammedsayed1356 3 года назад

thanks for the explanation, it really helped

@ATPLTips 3 года назад

Glad to hear it!

@StefanMKD123 3 года назад

Thank you for these wonderful videos. Would have wasted hours and a lot of nerves trying to wrap my head around these things with the explanations on ATPLqs/AVex or the Oxfords CBTs. Liked, subscribed and recommended you to my friends.

@ATPLTips 3 года назад

Ah thanks for the kind words- and double thanks for telling your friends!! Means a lot!!

@staraccount7762 2 года назад

Looking forward for more contents for studying

@jovichen1529 3 года назад

You're amazing !

@GrumpyPilotMax 3 года назад

Brilliant very helpful

@eledu0127 3 года назад

Thank you! You teach very well and the presentation is excellent. I'm looking forward to the third part (chart convergency). Are you going to make more videos?

@AdhamNafea 3 года назад

Thank you, your videos helped alot to pass my gnav exam, god bless you and wish you can do more for other subjects like Meteo or FP ...respect

@ATPLTips 3 года назад

Great to hear you passed Gnav!! Good work!!

@mahdidagher1634 3 года назад

keep it up buddy wonderful video

@ATPLTips 3 года назад

Thanks!

@sifyanelsharif1676 3 года назад

thanks man

@tatianacrescini 2 года назад

You're legend!! You should be hired by NASA, not just be sponsored by AVEX ahaha. Honestly, THANK YOU!

@ATPLTips 2 года назад

Have you done Met? I don't particularly want to go much higher than the tropopause.... omg shoot me I made a met joke.

@KhanhNguyen-gc8lg 3 года назад

Your videos are very helpful. Will you make more videos about gnav calculation questions in aviation exam?

@peterspisak8414 4 года назад

Hi, really great vidoes! Just one question, how do you know when to use 90 degrees RL and when to use 270degree RL?

@Politicalbiscuit 4 года назад

Just came across your channel, I love all of your videos thank you so much for creating it. It will definitely help me towards my Atpl. Are you by any chance planning on making a video for plotting?

@ATPLTips 4 года назад

That’s very kind of you, thanks! By plotting, do you mean using the charts from the Jeppesen Route Manual? That’s a great idea!

@Politicalbiscuit 4 года назад

ATPL Tips Your welcome, honestly I had all night watching those videos I found the 5 mins videos really helpful. This is what makes your channel stand out from the rest. Not long till you reach you 1000 subscribers. Yes i mean the chart based question on GPSRM. People also struggle with time question that could be an idea for the future. Once again thank you for the videos am really great full of it.

@ATPLTips 4 года назад

Ah those are really great ideas! Thanks very much!! And I’m so glad that what I’m doing is helpful- please tell your friends :)

@whelanvidswhelanvids1500 Год назад

Hey mate. Finding these videos a great help as I’ll have Gnav coming up soon. What was your background if you don’t mind me asking. Just finished ppl a while and smashed through the entire PADPILOT books front to back. Still anxious enough for the atpls. Will be using the PADPILOT again for them

@elinedevreese6973 3 года назад

Thank you!!!! Your videos are really helpful. Could you please make a video with tips/tricks/basics of how to use the CRP5? Because I don't have a clue how to use it. Especially because we got this lesson online en we covered all the possible calculations at once. To be honest, I'm a bit lost now... Thanks in advance!

@ATPLTips 3 года назад

Sure thing!! I’m glad these videos are helpful :)

@SuperEs75 3 года назад

how do you know when to use mercator vs lambert sketch. meaning when do you draw straight RL and curved GC and do you do the opposite? (curved RL and straight GC)

@tazb3255 3 года назад

1 minute in and subbed (: thanks

@talhaakhtar8323 3 года назад

Th great circle bearing of posn B in latitude 30degree 00' from posn A (30deg00'S 165deg00'E) is 100deg(T). wht is GC track from B to A? and longitude of posn B? could u solve this pls! thnk u btw great videos really like your way of explaining

@Jazee_777 3 года назад

You are better than my flight school instructor 👍 But one doubt, when we should add or subtract the conversation angle

@samiben7244 3 года назад

Depending on if you are going FROM GC to RL and in what hemisphere you are in. For instance, if you have the GC track and the CA in SH and you need the RL to think in what direction you are going. you need to go UP, therefor your answer will need to be a lower number (so you need to subtract) like the guy in the video said, draw it and you will see it. draw a compass rose beside it with the NWSE numbers on it, then you can approximate your answer that way you will quickly see if you need to add or subtract. Good luck

@josephmcateer6045 3 года назад

Hi Tom great videos I find them really helpful. Don’t know if you are still making these or not but I would love to see one on rates of descent and crossing DME at certain times etc. I would consider a zoom call if you still offer this, can’t see a DM on your page hope you see this thanks.

@ATPLTips 3 года назад

Thanks!! More are coming but I’m currently doing my CPL MEIR which means my time is super limited right now. Send me an email to tom@atpltips.com!

@Danyghaddar 2 года назад

hey man great videos , are you still going to upload : (?

@ATPLTips 2 года назад

Yes!! I took an extended break while I did the rest of my training... and then life got in the way!

@shammond997 3 года назад

Hi Tom, is it always best to draw your sketch as a Mercator projection,as that has been catching me out. Could you do some more examples of questions please,for guys like me who are struggling on this part of the subject. Thank you

@peterkaye2966 2 года назад

GREAT GREAT TEACHER!!! Quick question though, what if the lines were drawn on a conformal chart????

@ATPLTips 2 года назад

That's kind! I don't have a Labert video, but there's a decent explanation about halfway down this page: www.flightliteracy.com/charts-and-projections-part-two/

@vawho 5 месяцев назад

hello! Tell me please why we are moving to East we are adding or decreasing to 90 and why when we move to West we are either drifting or descending from 180 degrees although the pitch west is 270 degrees

@ahmadder 2 года назад

Hello , Was so excited when I started watching the Gnav playlist and so disappointed when I finished it .... Do you have videos fir the rest of Gnav anywhere ?

@ATPLTips 2 года назад

I'm impressed if you made it through all of that Gnav!!

@hrs7711 3 года назад

Sir can u make similar videos on Avionivs

@Bhavrageaverage 3 года назад

I am confused, at 9:03 We are in the southern hemisphere and travelling east so because of DI, ID, How come we do not minus the CA? to get 48 degrees instead of 132?

@HIHaiki 3 года назад

Because we are measuring the angle at A , GC > RLT . So RLT +CA . I hope I'm not too late 😅

@Bhavrageaverage 3 года назад

Husain Alhayki mate it’s all good and passed ages ago 😂😂

@HIHaiki 3 года назад

@@Bhavrageaverage best of luck bro smashed module 2 yet? I'm doing module 1

@RJ-yn2dj Год назад

10:44 should the answer not be A? you are in SH and your heading should be decreased so 90-42.3 = A?

@mohamedlarbidjafria1123 4 года назад

Can I memorize the numbers?

@ATPLTips 4 года назад

Which numbers do you want to memorise Mohamed?

@mohamedlarbidjafria1123 4 года назад

The av exams genav calculation questions ?

@ATPLTips 4 года назад

If you mean the answers to the questions, I would always advise against just memorising the answers. Sometimes they use the same numbers in a different order, or will change a positive number to a negative- so you think you know which answer to choose but it will actually be wrong.

@Whatsonyadoes Месяц назад

in the 5th question where GC a to b is 47 deg ..... why are you considering the convergency value and not conversion angle . also the question asks GC b to a so why are you showing the value of RL a to b as the answer?

@Jazee_777 3 года назад

But sir instead of using your book while solving we are not able see. It is better write on the white board👍