The RYA Diesel Engine Course is a highly practical, one-day training course aimed at helping boat owners, skippers, and crew learn about diesel engines in a simple, accessible way. No prior mechanical experience is required—just a willingness to get hands-on and develop the confidence to tackle basic engine maintenance and problem-solving.

Diesel engines are the heart of most modern cruising vessels, yet many sailors and powerboaters feel uncertain when it comes to understanding how they work. This diesel engine course demystifies the subject, empowering you with the knowledge to prevent problems, identify early warning signs, and take action when something goes wrong.

The course covers both theoretical and practical aspects of marine diesel engines. Topics include routine checks, engine components, fuel systems, cooling systems, and fault diagnosis. You’ll also explore safety precautions, tools you should carry on board, and what to do in the event of an engine failure.

Delivered by experienced RYA instructors, this course blends classroom learning with real-world demonstrations, giving you a clear, visual understanding of how your engine operates. By the end of the day, you’ll be able to perform routine maintenance and feel much more confident when dealing with engine issues at sea.

This course is highly recommended for all recreational boaters, especially those planning to charter, cruise offshore, or operate vessels without professional crew. It’s also a valuable component of the RYA cruising scheme and is often taken in conjunction with RYA Competent Crew, Day Skipper, or Yachtmaster training.

Minimum age is 14. Upon completion, you’ll receive the RYA Diesel Engine Course certificate, a valuable addition to your sailing qualifications and a useful skill set for self-sufficient boating.

If you want to learn about diesel engines in a relaxed, friendly environment while gaining practical skills that could save your trip—or even your life—this is the perfect course for you.