In the May edition of Yachting Monthly, on the news-stand right now, is our Ultimate Propeller Test. We asked: ‘What is the best prop for your boat?’ And in the most comprehensive test ever published Emhrys Barrel, a former editor of Motor Boat and Yachting and founder or Motor Boat Monthly magazine teamed up with YM to compare 15 propellers for speed, thrust, drag, stopping distance, prop walk and price.

As well as the picture gallery of the props tested that is already up on our website, we shot video showing the movements of the mounted propellers – from simple fixed props, to a more complicated Australian feathering three-blade, to the sculptural, dare we say coffee-table art piece, that is the Gori folding three-blade prop. We also shot footage of the test themselves.

The test did not go entirely to plan, however. At the end of our film is footage of a crash stop at six knots that furrowed one or two brows. Enjoy.