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I have a proven power-catamaran design that currently runs twin 150–200 hp outboards. For our existing production line I now need a compact version that performs efficiently with two 50 hp outboards. The core task is to resize the hull while preserving the ride, stability, and overall look of the original model. The boat will be built in fiberglass, so the laminate schedule and all scantlings must be updated accordingly. Once we sign an NDA I will forward the native CAD files (Rhino and DWG), hydrostatic reports, and sea-trial data from the larger craft. What I expect back: • Updated lines, offsets, and weight study that demonstrate the correct displacement and trim for the lighter power package • Complete structural drawings, laminate specifications, and CNC-ready mould geometry in Rhino or compatible formats, plus PDF sheets for the shop floor • Engine-pod / transom arrangement sized for two 50 hp outboards, including mounting details, fuel and steering runs • Hydrostatic, stability, and performance predictions that confirm the redesign meets ISO small-craft standards (or an equivalent rule set) Acceptance: the drawing set must be build-ready—our laminators should be able to cut moulds, order materials, and assemble without further lofting or reverse engineering. If questions arise during construction, I’ll rely on you for prompt clarifications, so please keep your working files organised and traceable.
Project ID: 40465448
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12 freelancers are bidding on average $1,134 USD for this job

Hello, we have reviewed your project. Together with my team, we can assist you in every way in terms of architecture. From architectural technical drawings to ultra-realistic 3D photos. We have provided remote support to many offices abroad and we continue to work with them, in this sense, we have important references especially from America and Germany. In addition, with our engineering capabilities, we can present you the cost analysis of your project and the amount of materials you will use in your project as a report. We create contemporary and traditional buildings with a flexible design approach. We have a command of all architectural and engineering programs and have a carefully established team. Do not forget that you will enjoy working with us and we will decide together with you at every moment of your project, please send us a message to get started. Good day.
$1,125 USD in 7 days
7.9
7.9

Hello, I fully understand your needs, as I have previously worked on a project similar to your specifications. I am an experienced architect specializing in 3D design and rendering. I have extensive experience using AutoCAD, SketchUp, and Revit 2025, and I can deliver the required design drawings on time. I would be delighted to work on your project. I have carefully reviewed your project details. If you choose me, your project will be completed quickly and to a high standard. Thank you for your interest.
$750 USD in 1 day
5.8
5.8

Hello there, I noticed you need a full naval architecture redesign of an existing power catamaran, scaling it down from twin 150–200 hp outboards to a more efficient twin 50 hp configuration while preserving hull behaviour, stability, and the original design language, including complete rework of hydrostatics, structure, laminate schedule, and production-ready CAD outputs for direct fabrication. I currently manage hull scaling and lightweight marine redesign workflows where existing vessel designs are re-optimised for different power-to-weight ratios, including updated lines plans, displacement and trim recalculations, structural laminate redesign for fiberglass construction, and production-ready Rhino/CNC outputs that ship directly to tooling without additional lofting, and I would love to do the same for your catamaran conversion. Best regards, Mobasher Reza
$1,125 USD in 3 days
0.6
0.6

Your requirement for a compact, efficient power catamaran leveraging existing design principles resonates with my experience in scaled hydrodynamics and composite structural optimization. I've previously adapted high-performance hull forms for reduced powerplants, achieving a comparable power-to-weight ratio and maintaining seakeeping characteristics through meticulous CFD analysis and iterative refinement. My approach will begin with a parametric study using the provided Rhino CAD data to establish scaling factors for the hull geometry. I'll then employ a suite of CFD tools, likely including OpenFOAM for viscous flow analysis and potential wave generation, to predict performance with the 50 hp outboards. Simultaneously, I'll conduct finite element analysis (FEA) on the updated laminate schedule, derived from the original fiberglass construction, to ensure structural integrity and compliance with updated scantling requirements. This iterative process will optimize for efficiency, stability, and ride quality. To ensure we're perfectly aligned, could you clarify the target speed range for the 50 hp configuration? Also, what are your primary performance metrics for "efficiently" in this context (e.g., fuel consumption at cruise, top speed)? I'm eager to discuss how my expertise can deliver a successful redesign.
$1,125 USD in 21 days
0.0
0.0

I understand you need a compact, efficient power catamaran redesign for twin 50 hp outboards, maintaining the ride, stability, and aesthetic of your existing larger design. I've successfully scaled down complex marine designs before, reducing power requirements by over 60% while improving fuel economy by 15% on a similar multihull project. My approach will involve parametric modeling in Rhino to systematically resize the hull, focusing on maintaining the original hull form's displacement and wave-making resistance characteristics. I'll use Maxsurf for hydrostatic and stability analysis, ensuring the smaller craft meets your performance targets. The updated laminate schedule and scantlings will be detailed in AutoCAD, suitable for fiberglass construction. How will the updated lines plan for the resized hull be presented for approval before proceeding with the full structural redesign? Ready to start as soon as you confirm scope.
$1,187 USD in 21 days
0.0
0.0

Sorong, Indonesia
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