Testimonials

These are some of the comments made by our students:

RYA Essential Navigation & Seamanship Course

We just wanted to say thanks again for a very informative and useful course. We learnt a lot and look forward to being able to put all that into practice. It has also helped us to understand what we need to know and learn more about. Next step will be purchasing some charts and continuing to practice on our navigation skills.
Carlotta Holt - RYA Essential Navigation & Seamanship Course

I just wanted to say a big thank you for running such a good Navigation course over the w/e. I wasn't really looking forward to it as was convinced I wouldn't understand any of it, but its now all so much clearer. The real test was when I got back I picked up a navigation book (how keen is that!) which I'd previously tried to read and given up on as it was double dutch - and suddenly it all made sense! I'm really looking forward to putting it all into practice (though equally slightly dreading being responsible if and when we end up on the mud!). I thought your approach was really methodical ( just what I needed) but you also made it interesting which is why I just about managed to maintain concentration levels until 5.30 yesterday! I'll definitely recommend it to other sailing friends - specially navigation idiots like me who are completely starting from scratch!
Charlotte - RYA Essential Navigation & Seamanship Course

I'm sure I'll be back
Howard Matthews - RYA Essential Navigation & Seamanship Course

Firstly thank you so much for the great course...despite all of our initial reservations about attending such a thing :-) we all thoroughly enjoyed it, learnt a lot of useful and vital stuff, and were VERY impressed with your teaching. We shall certainly spread your word. Thanks again
Lizzie Dymock - RYA Essential Navigation & Seamanship Course

Karen, your style of teaching I consider excellent. Patience and empathy.... rock solid knowledge....confident.... kind..... yup Karen....... really good. Thankyou. If you are vetted by RYA from time to time and they need teaching recipient feedback, tell them to give me a ring.
Geoff Newsome - RYA Essential Navigation & Seamanship Course

Thank you Karen, for the recent course I attended with you. I have learned a huge amount and much of the mystery I previously felt around navigation has gone. You have an excellent and patient teaching style and I would certainly look to enrol on your courses in future.
Steve Jenness - RYA Essential Navigation & Seamanship Course

RYA Day Skipper Theory Course

Not all good sailors are good teachers, and not all teachers have a thorough base of knowledge and experience of yachting. Karen at Emsworth is a yachtswoman with a thorough theoretical understanding and a wealth of practical experience that brings the theory to life. The teaching is well structured and clear, and most importantly linked to real world situations, ensuring the right things are focused on, and therefore remembered. I certainly recommend Karen for RYA theory tuition
Ian Slater - RYA Day Skipper Theory Course

Thank you for all your patience and hard work getting us all over the line. I was worried that the course would be a bit slow, but the pace was perfect and seemed to work for everyone.
Andy Brown - RYA Day Skipper Theory Course

Hi Karen Just a quick note to express my thanks to you for guiding me this through this course successfully last week. I have to confess that having pretty much no experience of sailing and none of chart work led me to approach the course with a good degree of trepidation. However, it was without doubt the combination of your vast knowledge, seemingly endless patience and easy teaching style that got me through. The experience has left me determined to move on to the practical, but only when it warms up ! Many thanks
David Thomson - RYA Day Skipper Theory Course

The day skipper theory course was well taught with lots of variety each day and practice questions . I can thoroughly recommend the Emsworth School of Navigation.
Fiona Pyke - RYA Day Skipper Theory Course

Many thanks for your excellent tuition over the past months. I have thoroughly enjoyed the course, have learnt a tremendous amount and have had a lot of fun in the process
Bill Boylett - RYA Day Skipper Theory Course

Just wanted to say an enormous thank you for your tremendous teaching, patience & good humour throughout the course. It was a fantastic learning experience and it would have been horrifically hard without your excellent explanations. Anyway, just wanted to say that it was fantastic and that I really enjoyed it.
Lydia Forbes-Manson - RYA Day Skipper Theory Course

I have to say I have thoroughly enjoyed the sessions and will miss our trips down to Emsworth on a Tuesday evening. I think the way you structured the course was super, gradually building up each aspect of the chart work and pulling it all together at the end with the Pilotage and Passage Planning. Everything was well presented and very clearly explained. So thank you. Matthew and I are already looking forward to the next course in the Autumn.
Ed Lyall - RYA Day Skipper Theory Course

Karen, Thank you very much, on behalf of Alex and I, for the training you gave us last week. You made it a pleasure to be there and I do feel that we learned everything we could within the time provided, as well as giving us a insight on what there remains to be learned.
Matthew R - RYA Day Skipper Theory Course

Karen – Hope all is well and thanks for such a great course two weeks ago – very well structured and presented.
Robert Palmer - RYA Day Skipper Theory Course

Karen, again thank you for your professional and friendly approach in teaching this RYA Day Skipper Theory Course. It was most enjoyable and I’m so pleased I passed it
Melvyn Cooper - RYA Day Skipper Theory Course

Hi Karen, I just wanted to write and say thank you for such a well run course. We were both nervous about not having much exoperience of sailing theory, but you started right from the basics and covered the why as well as the what. It was very interesting and suprisingly enjoyable.
Nigel Virgo - RYA Day Skipper Theory Course

Thank you Karen for getting me through my Day Skipper Course. I must have been one of your biggest challenges but with your endless patience and fantastic teaching skills, I made it. I would highly recommend the Emsworth School of Navigation.
Fliss Konieczky - RYA Day Skipper Theory Course

After an intensive, full week of Day Skipper training I have to commend Karen Dorontic, an amazing and inspiring tutor! She is extremely patient and knowledgeable. I would highly recommend the Emsworth School of Navigation to those wishing to undertake this course.
Amanda Diaper - RYA Day Skipper Theory Course

Absolutely brilliant teaching on RYA Day Skipper Theory Course by Karen. Thank you for being so patient with us - we're all excited about our next steps.
Lucy Thomas - RYA Day Skipper Theory Course

Firstly a big thank you for arranging this course. This is what I have been trying to master for years in a haze of well meaning advice and reading without really understanding what I was doing. Andy was an excellent teacher and the syllabus was pitch perfect for me. My objective was to feel confident in tackling small electrical tasks and I now do. Terrific.
Barry Edmonds - Westerly Owners Association - RYA Day Skipper Theory Course

Karen, thank you very much for your excellent teaching of the Day Skipper Theory Course. I really enjoyed participating and enjoying the subject. Thank you
Jo Bell - RYA Day Skipper Theory Course

Both courses were very well run in a professional yet relaxed atmosphere. I hadn’t been in a classroom for a while and was a little apprehensive but Karen’s friendly approach immediately put me at ease. She made learning fun and effective. I would happily recommend Emsworth School of Navigation to anyone looking for a shore based course
Victoria Bassadone - RYA Day Skipper Theory Course

The courses have greatly improved my confidence and I am thinking of doing the Day Skipper Practical next. I loved the courses and hopefully will do another one soon.
Jenny Scanlon - RYA Day Skipper Theory Course

RYA Coastal Skipper / Yachtmaster Theory Course

Can I just say how much I have enjoyed doing the course with you, I was a bit sceptical of the zoom aspect at the outset but your were able to make it interesting and varied throughout and it really did work very well. You were always patient and encouraging and we all appreciated that. I feel like I have made the most of those dark lockdown evenings.
Russell Shellard - RYA Coastal Skipper / Yachtmaster Theory Course

Thank you very much for looking after me last week and most of all for being so patient and good humoured. I think that your Coastal Skipper / Yachtmaster Theory Course is absolutely excellent and I very much appreciated your relaxed but professional teaching style, it was just what I needed. I have learned a huge amount this week and my enthusiasm for this new endeavour has been redoubled.
Hamish Griffiths - RYA Coastal Skipper / Yachtmaster Theory Course

Hi Karen, Just wanted to drop you a quick email to thank you for course I did with you last week. I really enjoyed the course, I found your subject knowledge and style of teaching great. I will be recommending you to anyone wanting to do any of the navigation type courses.
Kevin (Bob) Hoskins - RYA Coastal Skipper / Yachtmaster Theory Course

Once again thank you.
Peter Norval - RYA Coastal Skipper / Yachtmaster Theory Course

Just a short e mail to thank you very much of your patience and understanding over the last 5 days.The course was great, pitched at the right level, well paced and superbly presented. And most importantly of all, I enjoyed it.
Jonathan Pyper - RYA Coastal Skipper / Yachtmaster Theory Course

Just a note to say thanks for a great week – I thoroughly enjoyed the training in this (often overlooked) aspect of being on the water. Your approach to sharing knowledge and skills was second to none and I certainly benefited from the individual tuition provided as an integral part of the weeks course. Best wishes and thanks again – continued success for you and the school...!
Gordon Pownall - RYA Coastal Skipper / Yachtmaster Theory Course

Thank you for your excellent instruction and patience last week. I was impressed with how you recognised our weaknesses in order to set a personalised homework each day and with your calm pacing of the course in order to cover everything we needed to know during the week in order to achieve the required standard to succeed in the exams. I now look forward to more tidal sailing miles with greater confidence and when the time comes to do additional classroom courses before the next practical exam you will be the first port of call!
Neville Moody - RYA Coastal Skipper / Yachtmaster Theory Course

I just wanted to say a big thank you for the course. I thought it well structured and extremely well conducted. I like your style ! You make all the topics interesting and the personal anecdotes add significantly.
David Joll - RYA Coastal Skipper / Yachtmaster Theory Course

Just to let you know I really enjoyed the diesel engine course and Les was such a good teacher that the day flew past.
Sally Cholmondeley - RYA Coastal Skipper / Yachtmaster Theory Course

Just to thank you for the recent Coastal Skipper course. I think you judged it just right and found the course both instructive and fun. You quickly made me remember all the Day Skipper stuff I'd forgotten and managed to do in a few days what I had failed to achieve in months on the correspondence course (and at the same price). Emsworth is a pretty little town and the whole experience was very pleasant. I would recommend you to anyone.
Peter Malone - RYA Coastal Skipper / Yachtmaster Theory Course

Dear Karen. Just a short note to say many thanks for a very enjoyable course. It was well paced and you have a lovely clear teaching style.
Lilias Lamont - RYA Coastal Skipper / Yachtmaster Theory Course

I thought it was perfect. Explanations were extremely clear and this enabled me to apply what was being taught to the variety of questions and exercises posed. Your course definitely made me feel that a subject which can inspire concern or worry can in fact (with practice) inspire confidence. It was excellent, thank you.
. - RYA Coastal Skipper / Yachtmaster Theory Course

Both courses were fantastically run. Very engaging and taken at the perfect pace. Tea and coffee with a plentiful supply of biscuits added to what was already guaranteed to be a great few days! A highly recommended school for anyone to go to.
Ben Dukoff-Gordon - RYA Coastal Skipper / Yachtmaster Theory Course

RYA Yachtmaster Ocean Theory Course

Jules was excellent. Everything was clear and well explained. A very enjoyable week.
Leo Hammett - RYA Yachtmaster Ocean Theory Course

Julian was an excellent instructor, teaching a very tricky and complex subject. He put the information over highly effectively, kept us all motivated despite the complex and challenging course content. He kept the course fun with exercises using the sextants and made the theoretical topics applicable and usable in the "real world" i.e., on board the yacht. My overall impression of the school is that it is very professional, in a wonderful waterfront marina environment, great facilities on site, excellent teaching rooms and training aids, friendly staff and very professional and effective instructors. Thank you very much.
Karl Fisher - RYA Yachtmaster Ocean Theory Course

RYA VHF Short Range Radio Operators Course (DSC)

Hi Karen, Just a quick email to say thanks. Thoroughly enjoyed the course and appreciated the high standard of training and assessment. Thanks again
Nigel Matthews - RYA VHF Short Range Radio Operators Course (DSC)

Thank you for organising a great Short Range Radio Certificate Course. Mike was great to learn from and it was a great approach to the assessment.
James Spragg - RYA VHF Short Range Radio Operators Course (DSC)

Just a quick email to say thanks. Thoroughly enjoyed the course and appreciated the high standard of training and assessment.
Nigel Matthews - RYA VHF Short Range Radio Operators Course (DSC)

Hi Karen, Just wanted to thank you for the course on Friday it was very thorough and really enjoyable.
Andy French - RYA VHF Short Range Radio Operators Course (DSC)

Thank you for yesterdays course , Mike was beyond excellent , not only did he "know his stuff" he was patient and able to put it over in a understandable way , I learnt far more than I anticipated and thoroughly enjoyed the whole experience , please pass on my thanks to him and to you for hosting the event and providing all the excellent equipment etc
Simon Field - RYA VHF Short Range Radio Operators Course (DSC)

Thank you also for a most informative and enjoyable day yesterday. Not only did I learn a lot but it was fun. The next challenge is to remember it all! To this end, the notes will be useful refresher material over the coming months before next season when practical use of VHF will be possible again.
Tony Stimson - RYA VHF Short Range Radio Operators Course (DSC)

Once again thank you.
Peter Norval - RYA VHF Short Range Radio Operators Course (DSC)

Karen came to Hillingdon to run the VHF Radio Course 'in-house' which is a brilliant service. It was professionally run, in a friendly atmosphere, with good visual aids and equipment. Our group was small which creates a great learning situation and it was a productive and enjoyable day. We will definitely be using Emsworth School of Navigation for future courses for our staff.
Jeff Creak - Hillingdon Activity Centre - RYA VHF Short Range Radio Operators Course (DSC)

Thank you for the VHF course. It was very enjoyable, and with only five students in the class and a real working radio each, I learned a lot in a short time.
Rob Pitt - RYA VHF Short Range Radio Operators Course (DSC)

Just a short note to thank you very much for yesterdays training for the VHF/DSC operator's licence. The course was run in a highly efficient and professional manner yet an informal atmosphere prevailed throughout the day. I was delighted to pass the exam - obviously! But one is never certain about the outcome of these things. You prepared us well. I have no hesitation in recommending your school.
Julian Biggs - RYA VHF Short Range Radio Operators Course (DSC)

Just a quick email to thank you for the course yesterday - it was very enjoyable as well as being instructive and I had a really good day.
Charlotte L - RYA VHF Short Range Radio Operators Course (DSC)

Just wanted to say thank you for running such an efficient and enjoyable and instructive course yesterday. We all enjoyed it and it was incredible how much you got through in the time and how you made something we all thought was rather terrifying so much fun. I do not think it could be done better. I shall feel so much more confident now and have you to thank for that. Many thanks and good sailing.
John Edge - RYA VHF Short Range Radio Operators Course (DSC)

Just wanted to say thanks again for the VHF Course today. I thought the instruction was excellent, and I really enjoyed the course.
John Wilson - RYA VHF Short Range Radio Operators Course (DSC)

Thank you for an interesting course last week, it certainly taught me a lot regarding the VHF sets themselves, Very enjoyable indeed and once again many thanks
Danny Cain - RYA VHF Short Range Radio Operators Course (DSC)

Just wanted to drop you a quick line to say a huge thank you for an enjoyable VHF Radio course last Sat. I was a bit worried that I wouldn't keep up, as I had been unable to read up before hand due to a tight work schedule. But due to your relaxed and comprehensive teaching, I was able to achieve my goal. I'm looking forward to our sailing holiday in Greece even more now! Thank you again and I hope to do another course soon and will definitely come to ESN.
Freya Carter - RYA VHF Short Range Radio Operators Course (DSC)

Just wanted to drop you a line to say thanks for an enjoyable course on 2nd October, despite it being one of the best boating days available this year! Overall I found the course well paced and informative and will be recommending you to friends who need SRC
Alastair Twigger - RYA VHF Short Range Radio Operators Course (DSC)

RYA First Aid Course

Malcolm and Rosemary are very good indeed.
Mike Harrison - RYA First Aid Course

I thoroughly enjoyed the RYA First Aid Course yesterday and found it very helpful and instructive
Adrian Smith - RYA First Aid Course

Just wanted to say I really enjoyed the First Aid course last Friday. It was nice to have a course based on the requirements not on the tutors gory experiences. A very well run course. Many thanks
Brian Skeet - RYA First Aid Course

Today's First Aid course was excellent one of the best I have had in all the years that I have had to do such courses. Sue is a very good instructor and covered the course in a very effective and pragmatic manner.
Mike Machin - RYA First Aid Course

Good presentation, talk and powerpoint split up nicely with practical work. Interst kept up throughout the day. Very happy with the course.
Alan Hall - RYA First Aid Course

RYA Diesel Engine Course

Les and Tim really know their stuff and pass on super useful information in an easy to understand way - Brilliant!
Ed Lyall - RYA Diesel Engine Course

Really enjoyed the course & Les was excellent & full of helpful personalised tips. Thank you
David Chinn - RYA Diesel Engine Course

I completely loved the Diesel Course today - Les is a really top teacher and I learnt so much!!! I'll definitely be back for more training!
Fleur Whitlock - RYA Diesel Engine Course

We wanted to let you know how excellent we thought the diesel engine maintenance course was on 23rd June. Les was a first rate teacher and taylored the course to suit our engines which was so helpful. He also gave us lots of useful tips related to the engine and some which were indirectly related. My cousin, David, said the course was much, much better than he was anticipating - 'Brilliant' was the adjective he used. My son, Tom thought it was extremely interesting - high praise from an 18yr old! Please could you relay our thanks and appreciation to Les. We have booked our ferry to go and sort out the engine sooner than planned and we are so glad we came on the course!
Ruth - RYA Diesel Engine Course

I am sorry not to have sent a message straight away to let you know that I thought that the Diesel Engine Course was excellent. Les was very good, and patient with us. I learnt a lot, and now feel more confident. I have found the engine manual which was hiding on board my boat with a pile of other stuff, and in fact I have now found a box with most of the spares for the Volvo 55 that I might need. I will get all the other things, and then hopefully will have no problems on the sail round to the mediterranean in August.
Roger Vickers - RYA Diesel Engine Course

Thank you for an excellent course on Saturday - Les was a superb instructor and I really learned a lot. I wish the course had lasted longer - there is so much to learn! Les was a fount of knowledge.
George - RYA Diesel Engine Course

Quick note to say many Thanks for an excellent course on Monday. I now can't wait to get my hands on my diesel engine and pull it apart....safe in the knowledge that I can put it back together again. Les was excellent, please send him my best wishes.
Nick Child - RYA Diesel Engine Course

Just to let you know I really enjoyed the diesel engine course and Les was such a good teacher that the day flew past.
Sally Cholmondeley - RYA Diesel Engine Course

The diesel course was absolutely fantastic, what a great instructor. I learnt so much about my engine.
Toby Norman - RYA Diesel Engine Course

Just to say thank you for providing such a great Diesel Engine Course on Saturday. Les was fantastic, and made what at first seemed very daunting into a day of relaxed learning (the best kind). I think that it has prompted Felicity and I into thinking about doing some more RYA courses
Annabel Wilkins - RYA Diesel Engine Course

Another great training session today with Andy Johnson on boat electrics, following yesterdays equally superb day on Diesel Engine Maintenance presented by Les Cox.
Martin Langan - RYA Diesel Engine Course

I learnt so much and it certainly has given me the confidence to tackle any issue with my engine, especially if at sea.
Tony Hughes - RYA Diesel Engine Course

I just wanted to pass on my thanks to Les for the way he delivered yesterdays Diesel Engine Course. It was hugely informative and very hands on. He also included a host of additional practical tips which will be invaluable when I purchase my own yacht.
David Macfarlane - RYA Diesel Engine Course

The RYA Diesel Course run by Emsworth School of Navigation was an amazingly packed day. Our tutor Les Cox ran through the systems he would be covering and I wondered if this would be too technical for me but he went through every part of the specification in a methodical way and we were able to handle and study the smaller engine parts. Les soon had us changing filters, checking the impeller, checking and fitting the drive belt, bleeding the fuel system, battery management, replacing a temporary head gasket and discussing fuel management. Having a ratio of 1 tutor to 5 students meant we had some personal tuition and were able to share our experiences. I really enjoyed this course and think it was great value for money.
Pauline Powell (Westerly Owners Association) - RYA Diesel Engine Course

RYA Radar Course

No improvement for me. I really enjoyed the course and as a beginner I came away with a great deal of useful information. Andy's instruction was first class.
John - RYA Radar Course

MCA Approved Engine Course 1 (AEC 1)

Fantastic course, lots of excellent content. Martyn was very knowledgeable and interesting. I feel that I have a good base knowledge of Diesel Marine Engineering systems and hope to do my AEC 2 one day soon.
Luke Kelly-Granger - MCA Approved Engine Course 1 (AEC 1)

Martyn ran a great course. You have a good setup and I thought the whole thing from booking to completion, the premises and facilities were really good.
Jane Sudlow - MCA Approved Engine Course 1 (AEC 1)

I hope this email finds you well. I wanted to say a huge thanks for the course I took with you guys back in September - the tutor was fantastic
Alex Harrison - MCA Approved Engine Course 1 (AEC 1)

Excellent!! Great course!
Gery Atkins - MCA Approved Engine Course 1 (AEC 1)

Very well run, fun course, really great value training
James Clarke - MCA Approved Engine Course 1 (AEC 1)

Great instructor who had a great way of communicating the subject. Good mix of theory and practical.
Tom Way - MCA Approved Engine Course 1 (AEC 1)

Thank you for organizing the course, it was really great.
Istvan Radi - MCA Approved Engine Course 1 (AEC 1)

Just a thank you for a course well run. I thoroughly enjoyed it and Martyn was a brilliant instructor.
Derek Van Tubbergh - MCA Approved Engine Course 1 (AEC 1)

The guys really enjoyed the course last week so thank you for arranging it and to the course tutors.
Charlotte (Dalby Offshore) - MCA Approved Engine Course 1 (AEC 1)

Thank you very much indeed for a fantastic course!. It was thoroughly enjoyable and I learnt a great deal. I presume you have had a great deal of feedback about Martyn, he really made the course for me. I would not allow a bad word to be said about him, very professional and a wealth of experience that he passed on to us all. For me this is what turns a good course into a great one. Many thanks and all the best for the future.
Toby Lewis - MCA Approved Engine Course 1 (AEC 1)

Very enjoyable course. Martyn kept the course very light and practical
James Somerville - MCA Approved Engine Course 1 (AEC 1)

Thoroughly enjoyed the course. It had an easy mix of theory and 'hands on'. Would definitely recommend to others. Well laid out and well taught.
Roy McClintock - MCA Approved Engine Course 1 (AEC 1)

The course was delivered at an appropriate pace for all levels of knowledge. Topics were covered in depth with a valuable use of teaching aids to emphasise key points. The instructor support and enthusiasm during the practical elements was greatly welcomed and provided a fun and professional learning environment.
Stephen Saw - MCA Approved Engine Course 1 (AEC 1)

Great course, extremely friendly and helpful instructor. Even managed to service my own outboard engine.
Neil Crouchman - MCA Approved Engine Course 1 (AEC 1)

Really interesting course - would recommend it to anyone.
Conner Adams - MCA Approved Engine Course 1 (AEC 1)

Thank you for all your help, I will be recommending you for further training.
Stephen Giles - MCA Approved Engine Course 1 (AEC 1)

Excellent course overall. Well equipped school and location. Brilliant instructor, open style, interesting, gets learning points across effectively, really enjoyed everything
Karl Fisher - MCA Approved Engine Course 1 (AEC 1)

Very good course. Instructor used good level of practical and lecture materials.
Kevin Gorringe - MCA Approved Engine Course 1 (AEC 1)

Done a few courses these last few months and this was by far the most informative and enjoyable.
Richard Walker - MCA Approved Engine Course 1 (AEC 1)

I just wanted to say how good the course was last week Martyn was a brilliant tutor and such an interesting man, the course has given me the confidence to go ahead with my plan to start working for myself as a marine engine and electrics technician.
Bill Wardoper - MCA Approved Engine Course 1 (AEC 1)

I would like to thank yourself and Martyn for looking after me ;-) I/we had a great time, I sort turned up thinking I would know most of the things Martyn was going to talk about (but guess I didn't lol) I was really really impressed with the course Martyn really does know his stuff thanks mate.
David Foote - MCA Approved Engine Course 1 (AEC 1)

Excellent instructor. Very clear, concise, friendly & approachable.
Daniel Flynn - MCA Approved Engine Course 1 (AEC 1)

Great course, very informative, really enjoyed it
Dan Willard - MCA Approved Engine Course 1 (AEC 1)

Excellent course and instructor who was very knowledgeable , experienced and engaging
Ian Geraghty - MCA Approved Engine Course 1 (AEC 1)

MCA Approved Engine Course 2 (AEC 2)

Great guy, very supportive, incredibly patient. Top marks
Daniel Flynn - MCA Approved Engine Course 2 (AEC 2)

Excellent instructor, very knowledgeable and able to answer all queries
Jamie Elliott ( Training manager Windcat Workboats) - MCA Approved Engine Course 2 (AEC 2)

RYA Essential Navigation & Seamanship - E-Learning

‎I'm sure I will be back!
Howard Matthews - RYA Essential Navigation & Seamanship - E-Learning

Introduction to Boat Electrics