FREE Basic Sail Trim Online Sailing Course

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Rating is 4.95 (based on 18867 reviews).

Get Started with the FREE Basic Sail Trim course

Try out the FREE Basic Sail Trim online sailing course and delve into the techniques of adjusting the sails, understanding the wind, and mastering other sailing fundamentals! Whether you're a new or a seasoned sailor, this course is for you. Explore sail trim basics through interactive HTML5 animations, where you'll have control over trim settings while observing wind effects right from your fingertips.

Estimated Time: 2 hours
Price: FREE - give it a try!

Welcome to NauticEd's FREE Basic Sail Trim online sailing course

Enroll in NauticEd's FREE Basic Sail Trim course online and learn how to work with the sails to get your sailboat moving, read the wind, and master sailing basics! The basic concepts of sail trim are explained using multimedia interactive HTML5 animation technology, meaning you'll adjust the various trim controls while watching wind effects. The FREE Basic Sail Trim sailing course teaches you to trim the sails and more!

This basic course covers all the essential skills and knowledge you need to start sailing with confidence. From basic sail terminology to adjusting sail trim for optimal performance, this course will teach you the fundamentals of sailing and help you develop the knowledge necessary to trim sails safely and efficiently.
Whether you are new to sailing or looking to improve your skills, this course is a great starting point for anyone looking to get into sailing. Enroll now and take the first step towards becoming a knowledgeable and confident sailor.

PLUS we've added a bonus Module 5 to discuss the highly relevant America's Cup Winged Sail configuration and its advantages with reduced drag and improved angle of attack using diagrams to help understand the force vectors.

We guarantee both your satisfaction AND Lifetime access to any sailing course you buy from us

More about the Basic Sail Trim Online Sailing Course

Whether you're learning to sail or an advanced sailor, take this free course now - it will take you about 3 hours to get through the material, and I guarantee you'll learn something. The basic concepts of sail trim are explained using multimedia interactive HTML5 animation technology, meaning you'll have various trim controls at your mouse tip and you'll be watching wind effects right in front of your eyes on your computer screen.

This is an ONLINE course and test viewable in your browser window.

Hesitating about signing up for FREE? Watch our introduction video below


It's the 21st-century way of learning to sail. You'll fully grasp the concepts here using e-learning technology, then we encourage you to get out on the water with one of our professional affiliated sailing schools and practice with a proper understanding. You'll then save time with the sailing instructor on these basics and be able to concentrate on the more advanced sailing techniques.

Using the interactive controls and animations, you'll be blown away (sorry for the pun) by your new understanding of this sail trim material and you'll no longer get frustrated when trying to explain the concept to others. If a picture is worth 1000 words then an interactive animation is worth infinity.

And finally, if you skipper your own sailboat, you're probably pretty versed with the material here and ready for the most advanced NauticEd sailing school courses. But we suggest, at the very least, sending your crew here to take this FREE Sailing Course. Then next time you go sailing, watch them make your sailboat go a knot or two faster. There is no other sailing course in the world that explains sail trim using such hi-tech e-learning methods.

So grab a cappuccino sit back and watch sail trim unfold in front of your eyes. Then, once you've figured out that we're the best at explaining this stuff you might try some of our other sailing courses and start to build your globally recognized sailing resume and certifications.

Instructor Grant Headifen
By Grant Headifen
NauticEd Global Director of Education


View Basic Sail Trim Course excerpt

Student Reviews

Eric W.
2024, 11 Jun. 11:25

Getting a better understanding of sail trim and how different approaches to trimming impact efficiency.

Julia B.
2024, 09 Jun. 19:12

It is very well explained and introduces concepts that are important. I learned quite some things and I am quite sure I will retain them because of the explanations given! Brilliant

Mimi L.
2024, 04 Jun. 14:09

I found it incredibly detailed and informative.

John F.
2024, 03 Jun. 07:35

Example and the little practical application, I forget the name of it

Catherine M.
2024, 02 Jun. 18:15

A few really helpful tips to understand how the sails act under different conditions. Images on test not always clear enough to indicate what was going on with the telltales.

David K.
2024, 01 Jun. 15:25

I learned some small things that i didnt know after sailing for over 20 years and owning my own boat for 10,

Steven W.
2024, 30 May. 15:10

Didn't know a thing till this course. This was the start of probably the greatest adventure of my life. 53 y/o retired Engineer, looking forwards to the rest of my life !

Andrew N.
2024, 18 May. 08:04

Personally i liked the theoretical aspects as well as core solutions - move toward the flaping telltale, more twist in gusts etc. However i think for someone new, "Basic" sail trim may seem a bit misleading.

Lance C.
2024, 18 May. 02:52

I believe I gained an understanding of how to trim sails, at least from a beginners perspective.

David J.
2024, 03 May. 16:54

For my current level of experience and understanding I found parts of this course confusing but there's no harm in stretching oneself.

Darren Y.
2024, 30 Apr. 23:38

Well laid out. 3d's are great. So are the interactive pictures

Dennis D.
2024, 15 Apr. 15:21

Very informative and allowed me to work at my own pace.

Showing 1 - 12 of last 265 reviews.
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Excerpt from the course

Expand Excerpt from the course

1.2 True Wind Vs Apparent Wind

We've created an interactive animation here so that you'll instantly "get" what everyone tries to explain laboriously on a blackboard without much success.

Click and drag on the slider bar. As the car speeds up, the wind increases in velocity and the direction of origin feels like it moves forward. That's apparent wind - it's what your hand feels out of the window and on a boat it's what the sails feel. If you stop the car, the apparent wind goes back to be the same as the true wind. The true wind stays the same regardless of your speed. That's it! Now you understand true versus apparent wind.

Figure 1.2-1 Animation of a Car Moving in Wind

Collapse Excerpt from the course

Sea talk testimonials

I have turned into a great crew member and mate largely due to your online classes. I can now think and speak "sailing" and sailing terminology.

Alyse M, Student

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