Trans RINA, Vol 157, Part C1, Intl J Marine Design, Jan - Dec 2015


The view of the entrance from the sh ower unit is shown in Figure 25, with the view of the lockers from the toilet area shown in Figure 26. The use of lighting and the contrast of highly reflective surfaces to granite gives it a clinical feel and modern style appeal. This modern style approach creates the impression that a room is larger than it actually


is. The minimal use of textures and bold


geometric forms in the furniture, combined with the use of neutral colours accented with a single bold colour along with polished finishes and asymmetrical ba nla nce of layout are key identifying features of this style. Use of radius edges


at floor perception of height. and ceiling accentuate the


Figure 28. This has a flexib le cable based mechanism to allow for the vertical motion of the vessel in high sea states. The cable system ra


aises the WFSV above the


water, as shown in Figure 29 and the A-frame retracts over


the deck. At which point the cable lowers the WFSV onto a motorised trolley and track based system, which allows the vessel to be moved forwards on an electrically powered storage


e frame to make room for the


second WFSV to be stored when recovered from the water. To launch the second starboard side vessel shown in Figure 28 the boom crane lifts the empty storage frame of the WFSV as it moves to the transom A-frame loading po


osition.


Figure 25: View of changing room entrance Figure 27: Rear 3/4 view of O OSV


Figure 26: View of the lockers from the toilet area TECHNOLOGY INNOVATION


4.


The technology innovation in this design proposal use of common platform technology. The idea is vessel could be design as a generic OSV vessel with a modular platform capable of being fitted with a transom mounted A-frame


is the that a


crane for the launch/recovery of


WFSVs. The rear 3/4 view of the OSV is shown in Figure 27, where the A-frame for launch/recovery of WFSV and the boom crane for launch/recovery of Cabin RIBs can be seen. There are two distinct launch/recovery systems for the WFSV under development. The first involves fitting a lifting frame onto the WFSV which structurally connects to both hulls


to facilitate the


structural loads of a lifting hook, will be discussed i in this paper. Here the principle of operation involves driving the WFSV onto a bollard at the


transom of the


mothership under throttle, to partially constrain the vessel motiion, enabling it to launch/recover in 2.5m Hs + conditions. A robotic arm system then secures a lifting hook onto the eyelet of the lifting frame, as shown in


Figure 29: WFSV being winc ched from sea Figure 28: Robotic arm secururing a lifting hook


© 2015: The Royal Institution of Naval Architects


C-93


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