Discussion in 'Yacht Renderings & Plans' started by SVDesign, Jul 7, 2008.
Gemballa Mirage GT, that's just porn.
Afraid you might be right.
I will try to see how it can render
Here is Oiseau Bleu - the Blue Bird - Length 55m.
Somebody asked me for sailing boats. I'm back to sailing boat
I'm preparing a technical document to present the project.
I will put it on line as soon as consolidated.
Interesting concept Sylvain... what exactly would be the purpose? Cruising? Racing?
Also, the max image width is 640 pixels. Please resize your images to fit the forum default.
The purpose of Oiseau Bleu is cruising, but real sailing cruising.
You can spend the day pulling on the ropes on top deck, with interesting sailing performances, and have a comfortable cabin and saloon for your night.
It could present some interest in active or sport charter in West Indies I think, with sailors interested in sailing big boats with a deck arrangement close to racing maxis, but with all comfort at anchorage.
From performance point of view, Oiseau Bleu can look simple but her design is not.
I designed a sort of "dynamic" hull, using a deep hard chine. This has nothing to do with what we can find in Open racing boats because they are not used to reduced the real breadth of the ship and increase virtually the power, but for hydrodynamic lift.
I enclosed waterlines screenshots at different heel angles, to show you how it is working : from 0° to 15°, waterlines are typical for hardchine hull, but nothing special. At 20° and 25°, you can see waterlines looking like a lifting body, giving a real lift to help the ship increasing VMG and heading capacities. At 30° and 35°, lines are changing to neutral, to not affect ship handling when sailing conditions become more difficult.
This hull can provide a very good 'grip' upwind, and this allows to reduce appendage wetted area. With a semi-long keel and winglets, I'm confident in ship performances upwind.
The internal arrangement is as follows :
Fwd deck dedicated to anchoring purposes. Furler is fitted for genoa
Middle deck is a sun deck. Winches and piano at mast foot
Aft deck is for sailors : helm, winches for main sails and genoa, and at the aft a small deck saloon under the mizzen.
Fwd cabin is owner's suite, with panoramic portholes on ship sides and top windows oriented fwd to give more natural lighting.
VIP cabins can be located in the middle, with a porthole for each of them, and we can make 2 or 3 of them each side of the ship.
Aft part is dedicated to galley and wardroom, sheltered under the superstructure.
Aft deck can be used as sun deck and/or for storage of tender(s).
You can reach top deck by 3 stairs : one each side giving access inside the "deck house" in front of the helms, and one at the back on portside giving direct access to deck saloon.
Lower deck - there is enought space for a lower deck, in the middle section - can be used for crew quarters and technical rooms (engine room, cold room, technical facilities, etc...).
This should help you to see where I'm sailing to....
. . . .
For this anchorage, I'm sure you found were it is
Back to Esquisse, time to picture(s)....
Here is XXI (21) coming.
very cool. I just think the helicopter area must be parallel to waterline, cause then can slippery happens. At side you can mantain the same profiles, better also for volumes lines to be kept at side view. Great job.
He he..... I was waiting for the question about helipad
I will post another render with the landing area tilted horizontal : it's hinged at the aft part, and can be raised with rams on the fwd side. This will provide a safe area for helicopter landing, clear from obstacles on sides and fwd, and it will not spoil the profile view.
In that case here is another one.
How does this proposed pad comply with the requirements of LY2?
Here is a bit extracted:
24.2.1 When provision is made for helicopter operations to or from the vessel, the helicopter landing area should be located on an appropriate area of the weather or superstructure deck, or on a purpose built landing area permanently attached to the vessel or structure, providing;
.1 the structural strength of the helicopter landing area is designed and
constructed according to Classification Society rules on helicopter landing
areas for vessels and a Certificate of Compliance is issued by the relevant
.2 all other considerations such as landing area size, means of access,
obstacle protected surfaces (sector clearance zones), lighting, and marking
should be in accordance with Annex 6 of this Code with a Helicopter
Landing Area Certificate issued by the Aviation Inspection Body;
.3 the requirements for helicopter facilities in SOLAS II-2 are complied with in full;
.4 helicopter operations to / from the vessel are restricted to within the
weather, pitch, roll, and heave limits for the vessel as defined where
appropriate in the relevant operating rules, and / or in the rotorcraft flight
manual (RFM) and /or by the Aviation Inspection Body;
.5 the helicopter landing area is designed for the largest helicopter which it is
intended to use; and .6 the operational procedures for the vessel fully reflect the above.
24.2.2 If it is proposed to provide hangar and/or refuelling facilities for a helicopter whilst it is on board the vessel, prior approval should be sought from the Administration. Such facilities should be arranged in accordance with Annex 6 Section 7 and / or 8 of this Code.
24.2.3 In order to meet the full safe landing area size requirement in Annex 6 of this Code, the out-board edges of the landing area may be engineered to retract or fold to a closed position when the landing area is not in use providing the overall safe landing area, including the retractable or movable sides, when fully deployed, provides the minimum load bearing area specified.
18.104.22.168 The minimum safe landing area dynamic load bearing capability should be 2.5 times the Maximum Take-Off Mass (MTOM) of the heaviest helicopter intended to use the landing area. This may only be reduced, subject to agreement from both the Classification Society and Administration.
24.2.4 The officer(s) in charge of each helicopter landing area operations team should be in possession of an Offshore Petroleum Industry Training Organisation (OPITO) Approved Offshore Helicopter Landing Officer (HLO) certificate. All other crew assigned duties within the helicopter landing area operations team(s) should be in possession of an OPITO Approved Offshore Emergency Helideck Team Member certificate. Certification from an equivalent course approved by the Administration will also be accepted. All helicopter operations certification should be in date.
24.2.5 All crew on board should undergo familiarisation training regarding helicopter operations on board and it is recommended that all crew undertake helicopter crash survivability (“dunker”) training at a recognised OPITO training centre, prior to commencement of duties.
24.2.6 Ship to shore and ship to helicopter communications procedures, ship operating procedures, and guidance on helicopter emergencies are outlined in the International Chamber of Shipping Guide to Helicopter / Ship Operations and should be used as part of the operational procedures of the vessel.
You might also want to take a look at the SOLAS Regs refereed to in the preceding text:
Thanks for this extract K1W1.
I know these rules very well, for having supervised the design and acceptance of a naval ship meeting AIR notation for a Panther and HIFR facilities for NH90 type.
The most difficult issue is the crash load-case on the landing area, which suppose a strong stiffening of the platform. In that case it is allowed to damage the secondary stiffeners and shell plate but primary stiffeners must resist. With a proper cinematic with hydraulic actuators, it is perfectly feasible.
My idea for XXI was the possibility to accomodate a small helo-taxi for very short periods and only at anchor. No refuelling expected - it is a hell of a system to be installed on board due to all safety issues and regulations.
Oiseau Noir unveiled
Please find below renders of my latest concept : Oiseau Noir, a fast 47-m sailing sloop with all facilities for reduced crew on board.
Good morning all
Long time since my last visit here. I was working slow, but still working.
Latest concept to come out : Rogue / Rogue Hunter.
The name is telling you the aim of the concept.
Length : 57.00m - Beam : 8.00m - Speed : 18kts
Who will dare first ?
Grand Solo is a 60' sailing boat, designed for day-sailing or short cruises, single-handed or possibly with complete crew (max. 4 pax.)
Sailing program : setting sails on the morning from a marina on La Côte d'Azur, then quick sailing to close islands to enjoy the day there, at anchor or sailing around, and sail back on the evening thanks to a high transit speed under sails. Handling is eased with a deck arrangement engineered for single handling or very reduced crew, with a simple but powerful sail plan and appropriate fittings.
Inside : it is possible to accomodate 2 persons in the fwd twin cabin. A mess + galley is located in the centre of superstructure, and on opposite side to entrance, on portside, is located a wet area with WC and shower tray. Two additional beds can be fitted for crew, on sides below the cockpit.
Minos - cruiser race concept
New cruiser racer