Navigation - Course To Steer (Chart Plotting Part 2)

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How to determine Course To Steer after knowing the set, drift, and leeway from the wind.
Looking to become a licensed mariner or continue your professional maritime training? Obtain your training and certification with Northeast Maritime Institute. We offer on-site and online training for US and International seafarers. Visit www.northeastmaritime.com for more information.
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Navigation Plotting is an essential skill for working in the maritime industry. This video is an introduction to some of those concepts. If you've spent lots of time on the water, but have not pursued a professional license, you should consider yourself a candidate for an Operator of Uninspected Passenger Vessels (OUPV) 6-Pack license. This license allows you to charter vessels with up to 6 paying passenger and is the first step to a career in the maritime industry, full-time or part-time!
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7 июл 2024

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Комментарии : 75

@Mikeandlucy1 Год назад

At last someone explaining it in a manner I can understand, thank you

@diegogarcia2515 2 года назад

Coming with curiosity from your nearest industry: aviation.

@farqfarq2225 Год назад

Give this guy a raise

@hectorruiz7274 4 года назад

Thanks to you I pass my USCG OUPV course. Your guidelines to follow this steps are the most simple and easiest way to solve any kind of problem situation. I can't thank you enough for your help, expertise and dedication. God Bless you with health and a lot of good things.

@Tiger_Luv Год назад

Thank you 👍

@erikvanderburg3597 8 месяцев назад

Great job explaining you do an excellent job

@carlaschroeder7637 3 года назад

Thanks for being such a good instructor, you make life very easy

@annettecardoza2842 6 лет назад

Thank you for explaining it so well

@StorageShedReviews 7 лет назад

Clear communication and very helpful. Thanks for sharing.

@british-military-veterans 3 года назад

Amazing - you make it sound so easy!!!

@HaydenHero 2 года назад

You’re a lifesaver, Sir!

@cycloneranger5354 3 года назад

Wow. What an excellent intro to navigation!

@OverlandSea 6 лет назад

Explained in a really simple way, thanks so much for sharing.

@tztxz80 5 лет назад

Sir, thank you. I've been working my up from ASA 101 though 104. 104's chartering stuff was not easy. In part because I wan't allowed the use of a calculator and the charting became more of practical math test. These videos are great though. I'll continue to study charting and work on my basic math incase my solar powered calculator goes down. ASA 105/106 starts in a week.

@curt9876 5 лет назад

This is awesome. Well explained

@rockykoast7065 5 лет назад

Excellent clear instructions. :)

@mangyaojhonchristian8270 Год назад

Thank you Sir.

@kenr.6042 7 лет назад

sooo freaking cool !!

@sailinginstructor 4 года назад

Captain Dave! We miss you!

@sizzler1025 6 лет назад

thank you, im studying for my navigation test and this helps a lot!

@davidmedeiros483 6 лет назад

Good luck! I hope you are successful!!

@federicoreinel2040 6 лет назад

Excellent explanation. Very clear and without rushing the presentation.

@mikes2294 6 лет назад

Kudos ! ! ! You made it look so easy, Thank you Captain.

@davidmedeiros483 6 лет назад

Thank you for the comment!

@manuelgomes1268 3 года назад

great lesson. COURSE TO STEER.!!!!!

@nothwestresponse 9 лет назад

Six steps Brilliant! I had been struggling with some 13 step process to arrive at the same conclusion. Thank you for this.

@nmi-edu 7 лет назад

kiss

@davidmedeiros483 6 лет назад

KISS!!

@TommySalami7997 7 лет назад

dude ur awesome!

@cq7415 4 года назад

Very good. Thanks for sharing.

@TheHellJudger 8 лет назад

very useful, thank you

@martinyoung9901 2 года назад

Very helpful. Thanks.

@manuelgomes1268 3 года назад

good lesson!!!

@mykeythefishamador2213 3 года назад

Thank you Captain

@thaiconcept4442 5 лет назад

It helps me thank you sir

@Mr711andy 5 лет назад

thank you

@jonathanfanning9558 2 года назад

Or you could times the drift .8 by 57, the angle subtended in degrees by a radian, and times that by the sine of the acute angle between course and drift namely the sine of 70 degrees (you can think of the sine of 70 as a percenrage 94% or nearly 100%). That will give a value of roughly 42.8 (this value will not change unless the set ans drift change). You then divide it by boat speed, namely 5 kts giving you course correction angle of 8.5 or 9 kts.

@ninefingermining8694 2 года назад

Sweet again awesome & even more confused :). So let’s go sailing in Alaska :) lol

@barryandrew2304 6 лет назад

Cool 😎

@actiaint 5 лет назад

Another video said to use inner compass ring as that is magnetic reading?

@DollySvengali 6 лет назад

Where do you get the current s/d and leeway figures for your conditions?

@karhukivi 4 года назад

The current is given for certain points on the chart, usually in diamond boxes and a table at the bottom of the chart with speeds and directions for different states of the tide. One has to use the local tide tables to find the state of the tide and then interpolate for you position. Then as you go along you add in your own determinations of drift from your DRs and fixes. Its all very approximate but works well in fact. Tides are fairly predictable for standard ports but out at sea they are not so precise.

@hanss4549 5 лет назад

Drift in sailing seems to be defined different from how you use it, namely the difference between compass course and course through the water, resulting from the wind pushing against the sails

@karhukivi 4 года назад

That sideways slipping is "leeway" and varies with the points of sailing. You can estimate it on smooth water by looking at the angle of the wake to the axis of the boat.

@Helliconia54 4 года назад

so,in the USa are nautical miles same as USA land miles? as in 1 knt is 1 nautical mile per hour.

@yvonnevonjendraschek5099 5 лет назад

I was not understand in polish ( my mother language ) , I was managed in English , he he .Thanks

@coleshvar 4 года назад

Sorry for a naive question from an airman: how is it that to correct the wind you just take its direction into account? What about the wind speed? Why don't you proceed like you did for the current, by considering its heading, speed and you're own speed and building the resulting triangle?

@nurlatifahmohdnor8939 2 года назад

This is how word by word is being taken out systematically. + cam-pur or tam-bah × da-rab or ka-li ÷ ba-ha-gi = sa-ma de-ngan % pe-ra-tus

@nurlatifahmohdnor8939 2 года назад

Operation Sail 2, May 1620 Mayflower Tenerife, Canary Island. 2 weeks voyage Bermuda Eagle 295-foot = 90-m Page 55

@cameronpierce9426 5 лет назад

Excellent video! Again, like my comment on part 1--would just like to know how to steer the vessel using a magnetic compass with this info? thanks, Cameron

@jonathanwilkey4353 5 лет назад

(GE) TVMDC table (don't worry about the GE that is for gyro)

@cameronpierce9426 5 лет назад

@@jonathanwilkey4353 Thanks for this. Two further questions might help clarify: 1) I'm on the west coast of Canada, using government map #3263 (for example). The compass rose says "019degE 2005 (9'W)." I take this to mean that there was 19 degrees of eastward declination/variation in 2005. How do I calculate today's variation? 2) I understand that deviation is particular to each vessel (and relatively small). I'm in a small fibreglass racing dinghy (Vanguard 15); how do I calculate deviation (or can I presume it's negligible?)? Many thanks for your help, Cameron

@karhukivi 4 года назад

@@cameronpierce9426 (1) I think the "9'W" means it is moving westwards 9 minutes per year. Multiply 9' by the number of years (14) and you get 2 deg 6', so your variation might be 16 deg54'E if the annual change was constant, which is unlikely. Sometimes better to buy a newer chart as all sorts of other things may have changed. (2) The deviation is supposed to be set for the steering compass by a process known as "swinging the compass", usually done by an expert. The deviation can be large if the compass is located badly, near steel fittings or electrical equipment.

@vjaswin 4 года назад

Can somebody give the name of this chart and where can I get it ?

@yojimbos1 Год назад

Just starting my ASA 105 Course Study. My question is why are the assumptions for Course to Steer given in True instead of Magnetic headings? Terrifically clear explanations and tutorial BTW, I'm just confused on this point of Magnetic vs. True for assumptions Is it just for the practical exercise, ie. after working out CTS True one needs to work out CTS Magnetic? TIA and great teaching.

@nmi-edu 6 месяцев назад

I invite you to check on our website : nmi.edu/

@Bestcr7302 4 года назад

What is the course over ground?

@tztxz80 5 лет назад

How long can you safely plot out a CTS? Tide pattern change every 6 hours or so in most environments.

@karhukivi 4 года назад

In one book I have it says at least every 2 hours, but it all depends on where the boat is relative to hazards, and the strength and range of the tides.

@GlitterBot-ky9vw Год назад

69 comments nice- also cool video I have no idea what this is but i like it

@PhilbyFavourites 5 лет назад

I just can't help but notice your chart is 24 years out of date to when you published the video (Compass Rose Variation 14°.00' W dated 1990). Is that why you never mentioned variation and the transfer of the Course to Steer from True to Compass?

@Verradonairun 2 года назад

Another question from a complete rookie: 2:13 - I can't seem to figure out why you'd measure the 5 knots from the set & drift-line, instead of the fixed position (the starting point). Seems to me like an unnecessary complication. Can't you just measure the 5 knots from the fixed position, make a mark and then use the compass tool, the ruler and the compass rose in combination to draw a set & drift line "north" of the course line, but in such a way that it intersects the 5 mile-mark on the course line? Then, to find your course to steer, all you need to do is draw a line that connects the center of the compass rose to the 0.8 mile-mark on the set and drift line north of the course line.

@yojimbos1 Год назад

Try it your way and see if you come up with the same answer/locations.

@bigglyguy8429 Год назад

Lost me right at the start with "set"? What is 'set'?

@seanmorris Год назад

Set, the direction of the current/tide affecting the boats planned course. Drift, the speed of this current.

@robbieglobal100 8 лет назад

also better to use the Portland (aka Breton) Plotter. Those roller plotters have one MAJOR drawback - they can slip, esp in heavy weather

@arctrog 2 года назад

everyone: thanks for helping me pass my X test now i can do Y me, who just likes sailing: He He Compass Rose Go Burr

@petewilliams4289 Год назад

This is incorrect. Course (True) would not be the course to steer, 4:35 because the course to steer would be a compass course and must include True, variation, Magnetic, and deviation and then compass. TVMDC . Compass would be the course to steer?

@samw2670 5 лет назад

You need parallel rulers mate.

@karhukivi 4 года назад

Parallel rulers have a habit if getting caught on the lip at the bottom of the chart table, that is in small boats with limited space for a plotting table.

@robbieglobal100 8 лет назад

c'mon man! use proper nautical dividers. you'll make a mess of charts using these needle sharp points

@nmi-edu 7 лет назад

Teaching tools for classroom use ...

@davidmedeiros483 6 лет назад

Classroom use

@philip9878 5 лет назад

Set and drift?????? complicated lesson full of jargon and unintelligible for beginners. What's the point in a lesson designed to for those who already know??