Currently offered through Seafood Cornwall Training as an online course. Candidates can access the training material either at home via the internet or at Seafood Cornwall Training and complete the  final test online at Seafood Cornwall Training.


This course form part of the under 16.5m Skippers Ticket, which the MCA intends to make mandatory.


To enrol on to the 2 Day Engineroom Watchkeeping course please visit the Seafish training website You will need to create a free account on the site in order to access the online materials and practice questions. Once you are ready to complete your exam please contact us to arrange a convenient time and date to complete the test.


Fee: £25


Course content:

  • 4 stroke diesel engine theory
  • Fuel & air systems
  • Turbo charging
  • Exhaust & cooling systems
  • Vessel operations & safety
  • Maintenance
  • Tools & equipment

30 Hour Diesel Engine Course
The objective of the Approved Engine Course is to give students both the theoretical knowledge and practical hands-on experience of diesel engines and associated systems.


The AEC enables students to carry out regular servicing of marine diesel engines, and to carry out fault prevention and detection. This course meets the requirements for the MCA Codes of Practice for the ‘Safety of Large Commercial Sailing and Motor Vessels’, the ‘Safety of Small Commercial Motor Vessels’ and the ‘Safety of Small Workboats and Pilot Boats’.


The 30 hour diesel engine qualification is the entry level qualification for the MCA ‘Engineering Officer (Yacht)’ syllabus. It is also a prerequisite for certain areas of both the Fishing and the Workboat sectors.


Pre-Course Requirements: None


Course content:

  • Compression Ignition Engine
  • Cycles of Operation and Construction Details
  • Fuel System
  • The Role of Air in the Combustion Process
  • The Cooling System
  • The Lubrication System
  • Engine Electrical System
  • Power Transmission
  • Hull Fittings
  • Marine pollution and Safe Working Practices
  • Fault finding and rectification.


Course Delivery
The AEC course is a highly interactive course which involves classroom teaching mixed with practical workshop sessions in order to ensure candidates reach the required standard.


A display engine is used during the classroom sessions to allow hands-on demonstration and learning of the different components.


This is followed up in the workshop where candidates get their hands on a working naturally aspirated 4-cylinder marine diesel engine to experience the effects of the individual components on the running of the engine.
Assessment and Certification
Assessment is by continuous appraisal by the instructor via question and answer sessions and practical ability assessments.

On completion of the course you will receive the MCA AEC 30 hour diesel engine certificate.



Course Outline
A 30 hour course designed to give students both the theoretical knowledge and practical hands-on experience of diesel engines.  It will enable students to carry out regular servicing of marine diesel engines, and to carry out fault detection and prevention.


This course meets the requirements of the MCA Codes of Practice for the Safety of Large Commercial Sailing and Motor Vessels, the Safety of Small Commercial Motor Vessels and the Safety of Small Workboats and Pilot Boats.


Please note that some of our specialist courses, like this one, require a minimum number of delegates to go ahead.  If we do not have the required number of people booked, we will notifiy you at least 10 days prior to the start date of the course and refund your deposit payment.
Content & Objectives
The course will provide training in the following areas

  • The compression ignition engine
  • Cycle of operation and constructional details
  • The fuel system
  • The role of air in the combustion process
  • The cooling system
  • The lubrication system
  • Power transmission
  • Hull fittings
  • Fault finding and rectification

Learning Mode
The course will be taught at the Red Ensign training facility in Cowes and will be run as a combination of theory and practical hands-on sessions working on our varied diesel engines.
Entry Requirements
Candidates must have some experience of working with diesel engines, over and above the level of the RYA Diesel Engine Maintenance qualification and current experience of working with diesels onboard a vessel would be helpful.  Candidates must be over 18 years of age.




The cost of this course is £590.