Every year in November the Marine Equipment Trade Show opens its doors in Amsterdam to the marine industry en masse for three days of the latest products, technology as well as the chance to catch up with suppliers and customers.
Between the 15-17th of November C-Designs will be exhibiting in hall 3, stand 313, on hand to discuss your latest systems project. We hope to see you there.
With a proven track record in high quality custom-made mechanical assemblies C-Designs were approached early in 2015 to undertake a design study, with intent to manufacture, on a stowable anchor arm for a series built superyacht for a luxury yacht brand.
The arm as pictured, is capable of being stowed below deck whilst sailing or not in use and controlled by a local remote utilising the hydraulic system on-board is deployed through 180°, midway through which the inner telescopic arm via the use of an integrated hydraulic ram travels 600mm in order to avoid the enormous 160kG plough anchor on the end of the arm clashing with the yachts bowsprit.
The use of Titanium in such an application proved a fantastic challenge for the design team who needed to consider new design and manufacturing methods tailored to the materials unique properties.
It was with theses challenges in mind the team embarked on a programme of testing to ensure that the entire process was understood to guarantee a successful weld of the final 10mm thick cut plates profiled via waterjet.
The final arm is due for launching with the yacht in 2016 and is 44% lighter than it’s near identical stainless steel counterpart.
Delivered was a full actuation assembly to include two titanium hydraulic rams, the two inner and outer sections of the anchor arm, which was fully assembled in house to allow a simple ‘drop in’ assembly at the yard.
C Designs were tasked to come up with an improved bearing design for asymmetric dagger-boards, the brief was to find a lightweight solution that would give a large bearing surface to minimise point loading on the foil, leading to a lighter foil structure and reduce friction allowing deployment at higher speeds and reducing the loads required to move the foil.
Our design was inspired by heavy load moving skates commonly used in industry to move machines across factory floors. Taking this concept, incorporation of a spherical rear bearing seating to allow for the foil bending and shaping the bearing race to let the rollers follow the foil profile.
The bearing design has been developed over the past five years and now used successfully in Open 60 Artemis, Volvo 70 (Puma) and 100 ft Maxi (Wild Oats XI) a variation on the design was also used on the AC72 Oracle.