# Stability & Evaluation with ISO 12217

Discussion in 'Education' started by Pablo Sopelana, Apr 4, 2023.

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### Pablo SopelanaSenior Member

(Check other Navalapp courses here).

What will you learn?

After completing the course, you will deeply understand ship stability and how to apply this knowledge to use the ISO 12217 Standard, “Small craft — Stability and buoyancy assessment and categorization,” Part 2, “Sailing boats of hull length greater than or equal to 6 m.”

The course is structured into three different sections:

• Stability Theory
• ISO 12217 (focus on Part 2)
• Example
– Stability Theory

This section focuses on familiarizing you with the theoretical aspects of stability.

With that aim in mind, the instructor explains here concepts such as hydrostatics, initial stability, large angle stability, factors influencing stability, and dynamic stability, all of them necessary to master ship stability.

The knowledge acquired in this section will allow you to tackle with confidence sections 2 and 3 of the course.

– ISO 12217

In part two, the instructor explains the ISO 12217 standard looking at the different requirements for each of the design categories established for boats.

– Example

The course ends with an example: a complete evaluation of an “A” design category sailing yacht, where the instructor will guide you throughout the full assessment.

Note: when discussing ISO 12217, this course focuses mainly on Part 2, i.e., “Sailing boats of hull length greater than or equal to 6 m.”

ISO 12217. Small craft — Stability and buoyancy assessment and categorization

The ISO 12217 standard defines methods for assessing the stability and buoyancy of boats. It also specifies four design categories (A, B, C, or D) which align with those defined in the Recreational Craft Directive of the European Union, 2013/53/EU. After adequately evaluating the stability, buoyancy, overall design, and maximum load, a boat is assigned to one of these design categories.

The standard applies to vessels with a hull length less than 24 meters and has three different parts:

• Part 1: Non-sailing boats of hull length greater than or equal to 6m.
• Part 2: Sailing boats of hull length greater than or equal to 6 m.
• Part 3: Boats of hull length less than 6 m.
When discussing ISO 12217, this course focuses mainly on Part 2,i.e., “Sailing boats of hull length greater than or equal to 6 m.”

Course organization

The course is video-based and on-demand and can be followed at the student’s own pace.

It contains videos, quizzes, and downloadable documents. Students who complete the course will obtain a Certificate.

Course students will also have access to the virtual private classroom, where they can interact with the instructor and fellow students.

Resources:

• Video lessons.
• Lesson materials.
• Quizzes.
• Final Assignment.
• Course Evaluation Survey
• Virtual Private Classroom
• Course Certificate

2. Joined: Mar 2021
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### Pablo SopelanaSenior Member

In some lessons, the instructors use marine vessel design and analysis software Maxsurf. Students do not need this software to follow the course or to obtain the course certificate.

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### Samsam124177New Member

hello
do you have a course for the ISO 12217-1?
Thanks
Sam

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### TANSLSenior Member

I do have that, for -1, -2 and -3, spreadsheets to facilitate the calculations and presentation of the results as well as practical experience in the design of boats of all kinds, which not everyone can offer.

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### Samsam124177New Member

Great! where can I find it please?

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### TANSLSenior Member

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### Samsam124177New Member

How do I do that?

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### TANSLSenior Member

Until a few days after registration, the forum moderator does not allow us to send pm. But, if you ask him, he may allow you to use this form of communication.

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### Boat Design Net ModeratorModerator

The conversation option will automatically activate once you have a few more posts on the forum; Tansl, can he contact you through your website link in your signature?

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### Samsam124177New Member

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### TANSLSenior Member

Yes, he can. There are two of my email addresses.

12. Joined: Mar 2021
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### Pablo SopelanaSenior Member

Hi Sam,

The course currently focuses on Part 2. But Part 1 is in the pipeline.

Pablo

13. Joined: Mar 2021
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### Pablo SopelanaSenior Member

Stability & Evaluation with ISO 12217
Stability & Evaluation with ISO 12217 https://navalapp.com/courses/stability-evaluation-with-iso-12217/

We are very glad to announce that after a thorough evaluation, the Royal Institution of Naval Architects (RINA) has found that Navalapp's course Stability & Evaluation with ISO 12217 meets the requirements for Continuing Professional Development of the Institution. Therefore, RINA has considered that the course warrants their recognition and has issued a Certificate of Endorsement.

During the evaluation, RINA studied different aspects of the course, such as learning aims, content and structure, whether the information is up-to-date and is factually correct, students’ evaluations of the course, the supporting information and materials, the instructor’s expertise, the method by which the students are evaluated, and Navalapp’s organization standards.

Enjoy the course!

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