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Sailing yacht - Estimating ballast bulb added resistance?

Dear all, I am trying to estimate the resistance added from a bulb on a sailing yacht in upright resistance. I have bare hull resistance...

Thread by: Claudio Valerio Parboni, Apr 28, 2021, 3 replies, in forum: Hydrodynamics and Aerodynamics

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Stingray

Linesplan generated with FreeShip from a model created in Blender of the great yacht designed by C. Raymond Hunt. files here...

Uploaded by: pafurijaz, Nov 2, 2020, 0 comments, in album: Member Album by pafurijaz

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Molds For Sale - 38ft/42ft Flybridge

Hello everyone, We are looking for someone to buy our molds because we can no longer produce boats in Brazil due to lack of demand in the national...

Thread by: Jeandupont, Oct 24, 2020, 2 replies, in forum: Boat Molds

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Flat bottom planing hull Sailing boat theory sought

Hello Pete here from SW Western Australia, I could really use some pointers to the mathematics and theory of planing hulls, windsurf and water...

Thread by: PeteK, Oct 7, 2020, 16 replies, in forum: Boat Design

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BOQ of a Sailboat

Dear Altruists, Could you please give me a bill of quantities for a yacht/ sailboat? I need to know the cost breakdown. I am acknowledged about...

Thread by: marufuddin0, Aug 28, 2020, 8 replies, in forum: Sailboats

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sizes for fiberglass boats?

What are the maximum recommended sizes for fiberglass boats? I know that it is possible to build a large ship such as this one:...

Thread by: beso, Jul 21, 2020, 8 replies, in forum: Fiberglass and Composite Boat Building

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Camelec

Cata yacht elec sun

Uploaded by: rasco, Mar 23, 2020, 0 comments, in album: Rasco études

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Lifting Strake Width

Hello, I am currently designing a 100' planing craft with a deep V. I have defined the chine and am currently looking to put lifting strakes on...

Thread by: Lewis14Lewis, Sep 5, 2019, 6 replies, in forum: Boat Design

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good news new restyled X43 Flybridge is in the process of starting to be built in EU

good news new restyled X43 Flybridge is in the process of starting to be built in EU

Uploaded by: an2reir, Sep 4, 2019, 0 comments, in category: Gallery of Professional Design Work

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Contract based Yacht Designer

Dear All, I am a UK based yacht/interior designer, offering services from concept to completion and have 14 years of yacht design and building...

Thread by: allman, Jul 21, 2019, 0 replies, in forum: Services & Employment

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Flybridge 36ft Boat Molds - For Sale or Partneship

Hello guys, I have a shipyard in Brazil and I want to continue in the business with a participation or to sell the molds to someone interested in...

Thread by: Jeandupont, Apr 12, 2019, 10 replies, in forum: Boat Molds

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Building cheapest robust safe ocean crossing capable boat - ideas

Hi, I have recently got into sailing and ever since I started learning more about this awesome pass-time I have wanted to build my own boat. I...

Thread by: jacob1234, Feb 1, 2019, 7 replies, in forum: Boatbuilding

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Catamaran Hydrodynamic load?

Hello all, Now I am designing 11,5 m Aluminum Catamaran with maximum speed 10 knots (electric motor propulsion) I am using BV Rules for the...

Thread by: aldy syahri, Aug 29, 2018, 2 replies, in forum: Class Societies

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Keel of yacht

Hi, I am designing a sailing cum motor aluminum yacht. It is 30m long, and have 7 tons of ballast keel at around 40% midship region. My doubt it,...

Thread by: Archit Kumar, May 11, 2018, 1 replies, in forum: Sailboats

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Converting inboard to ouboard

Hi Everyone, i have found a listing for a 1977 36-38 feet hull which i am interested in bringing to life. The boat originaly was designed for...

Thread by: Sulaiman, Mar 25, 2018, 3 replies, in forum: Boat Design

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Reality check

I used to have (and since misplaced) a very comprehensive generic bill of materials for a typical large sailing yacht, it was called something...

Thread by: DriesLaas, Mar 22, 2018, 0 replies, in forum: Boat Design

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EXPEDITION YACHT UNIK 77 ORLY

http://unikyachts.com/en/expedition-yacht-unik-77-orly/

Uploaded by: Unik, Mar 21, 2018, 0 comments, in category: Gallery of Professional Design Work

Boat Design Gallery

EXPEDITION YACHT UNIK 77 ORLY

http://unikyachts.com/en/expedition-yacht-unik-77-orly/

Uploaded by: Unik, Mar 21, 2018, 0 comments, in category: Gallery of Professional Design Work

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Propulsion position - sailing yacht

Dear everyone, I started working on sailing yacht concept, my first project. For the purpose of making the GA I need to decide about Propeller...

Thread by: ToMeK, Feb 28, 2018, 2 replies, in forum: Sailboats

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Hollywood Boulevard - Carbon Fibre V Sunfish

Hollywood Boulevard, was heading back to NSW, having placed ninth in the Sydney to Hobart yacht race, Sailor Michael Spies told Channel Seven...

Thread by: rwatson, Jan 14, 2018, 0 replies, in forum: Boat Design