The rudder is a flight control... - National Flight Centre

Spyder Stinger vs. standard spade bit in the toughest material

Spreader-rod jigging | Fish & Tips

Discover how innovative propeller and rudder design can improve the propulsion efficiency of yachts. As Senior Naval Architect Sjoerd van Herk points out, there’s quite a lot at stake in the final stages of a yacht’s propulsion:“Around 40 per cent of the engine’s output is lost at the propeller,” he explains. “So it makes sense to look for improvements in this area.” With sustainability high on the industry’s agenda, shipyards are even more motivated to increase propulsion efficiency. It makes p