Royal Huisman ketch Elfje
There have been a couple of standout plumb bow superyacht ketches launched in recent years, namely the Dykstra designed Hetairos and Kamaxitha. This latest model from Hoek Design called Elfje, looks equally sensational. Like Kamaxitha, she was built by Dutch masters Royal Huisman, and launched last summer.
This first video, released on the eve of her racing debut at the St Barth’s Bucket this week, whets the appetite for the performance potential of this 52.36m (172ft) ketch. In her class is the fellow Hoek-designed ketch Marie, a 55m Vitters build that is out to defend last year’s Bucket victory.
Behind Elfje’s timeless lines lies some intriguing modern technology. Hoek Design’s Ruurt Meulemans says her owner would not compromise on looks or performance (both in operational and engineering terms). The Hoek team analysed the lines plans of five hulls with CFD, before tank-testing the preferred shape using a 20ft model (now hanging over Andre Hoek’s desk). Vee sections have been built forward, designed to avoid the slamming tendencies performance shapes with plumb ends can be subject to.
Performance is a prime target so trim tabs were added to the keel at the design stage. Andre Hoek feels these should help with pointing and accelerating out of tacks if they are added. She also has a T-keel that lifts to deck level, reducing draught from 7.10 m (23ft) to 4.50m (15ft), plus a carbon rudder, rig and rigging. And the whole hull has been fared smooth, a race boat tactic that is becoming a trend at Royal Huisman.
An innovative feature is the headstay furler that has been designed into the bowsprit, posing a stress load challenge for manufacturers Southern Spars. The bobstay fittings have also been cleverly integrated into an extraordinarily fine forefoot, connected to titanium …read more
