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This video is from a 61-minute course on calculating tides. In this excerpt, we see: 00:00 The probe and the hydrographic zero 01:36 Finding the probe on nautical charts 02:23 The probe, water height and depth ratio 05:02 Calculation with the draft and the pilot foot 06:07 Test questions for calculating the water height Here is the summary of this course (61 minutes): 1. Objective and use of calculating tides 2. Reminders of some general concepts 3. Phenomena influencing tides on land 4. Definitions and common vocabulary 5. The probe – water height – Depth ratio 6. Finding the data and correcting them – UT – UMT and summer time – Secondary ports – Atmospheric pressure – Pilot foot 7. Use of calculation tools, abacuses, tables, applications, websites or software This course is itself part of a high-quality, demanding and very complete offshore license training course (18 lessons, 13 hours of videos, multiple tests and automated exams). This training is ideal for those who want to train effectively and at their own pace, from home. The level is well above the minimum required (allow a minimum of two to three weeks to complete the entire training). Your registration includes unlimited access, as well as my direct and personalized support. To find out more about the detailed content and all the procedures that will allow you to pass your offshore license as a private candidate, go to: https://formations-maritimes.fr/ Here is the list of courses that make up this offshore license training: Course 1 – Basic information on the nautical chart (29 minutes + test) Course 2 – Symbols, abbreviations and terms used on maps (43 minutes + test) Course 3 – Representation of lights and markings on the map (36 minutes + test) Course 4 – Grid latitudes – longitudes – Parallels – meridians (44 minutes + test) Course 5 – Division of degrees, nautical miles and knots (24 minutes + test) Course 6 – Calculating the Distance – Speed – Time ratio (22 minutes + test) Course 7 – Rose – Routes and speeds – Position in relation to a landmark (43 minutes + test) Course 8 – Mastering your navigation rule (41 minutes + test) Lesson 9 – Positioning yourself with bearings (20 minutes + test) Lesson 10 – Faith line and true heading – Notion of bearing (25 minutes + test) Lesson 11 – Declination and deviation – Magnetic variation (57 minutes + test) Lesson 12 – Calculating wind drift (33 minutes + test) Lesson 13 – Currents – Correcting a heading – Asserting a route (47 minutes + test) Lesson 14 – Calculating tides 1 (61 minutes + test) Lesson 15 – Calculating tides 2 (60 minutes + test) Lesson 16 – Meteorology (52 minutes + test) Lesson 17 – Electronic navigation aid – GPS (52 minutes + test) Lesson 18 – Regulations – Safety equipment for offshore navigation (51 minutes + test) You will find a detailed summary and excerpts from each course on the website. There is also training offered to see concretely how this is presented, go to the home page: https://formations-maritimes.fr/ At your disposal if you have any questions! Patrick Belliot