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Enter Vessel Information
Input project name, vessel type (patrol boat, crew boat, etc.), and propulsion type (conventional propeller, surface driver, waterjet, or outboard).
Enter your vessel parameters for professional specification
Calculating design specifications...
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Professional vessel design powered by advanced calculations
Savitsky & Holtrop-Mennen methods for precise resistance estimation
Comprehensive marine engines and gearbox specifications
Instant specification generation for business use
8 simple steps to professional propeller design
Input project name, vessel type (patrol boat, crew boat, etc.), and propulsion type (conventional propeller, surface driver, waterjet, or outboard).
Enter hull dimensions: LOA (length overall), LWL (waterline length), beam, draft, displacement, LCG (longitudinal center of gravity), and deadrise angle.
Specify engine power (HP), engine quantity, gearbox ratio, and any propeller diameter constraints. Optionally provide measured hull resistance if available.
Enter design speed in knots. The system will calculate service speed (85% power) and maximum speed (100% power).
Select Hybrid mode for fast Python calculations or Pure AI mode for detailed 8-step empirical analysis with engineering reasoning.
Click 'Generate Vessel Specification' to receive complete propeller design, hull resistance analysis, structural requirements, and performance curves.
Analyze propeller diameter, pitch ratio, efficiency, slip percentage, thrust margin, and structural specifications. Review resistance and thrust curves to verify design adequacy.
Download complete design specifications as JSON file for documentation or further analysis.
Everything you need to know about ShipTechAI
ShipTechAI is a professional AI-powered vessel design platform that calculates propeller specifications, hull resistance, structural requirements, and propulsion system optimization for boats and ships. It uses proven naval architecture methods including Savitsky for planing hulls and Holtrop-Mennen for displacement vessels.
ShipTechAI uses systematic propeller series (SPP) data and AI optimization to calculate optimal propeller diameter, pitch ratio, blade count, and efficiency. The system considers vessel speed, engine power, gear ratio, hull resistance, and physical constraints to recommend the best propeller design. Calculations follow marine engineering standards with typical efficiencies ranging from 50-72%.
ShipTechAI automatically selects the appropriate method based on hull type: Savitsky method for planing hulls (Froude number > 1.2) and Holtrop-Mennen method for displacement hulls. The system analyzes length, beam, draft, displacement, and design speed to determine hull type and calculate accurate resistance predictions.
Yes, ShipTechAI is completely free for all users. Naval architects, marine engineers, shipyards, and boat designers can access all features without registration or payment.
ShipTechAI supports patrol boats, fast crew boats, fishing vessels, tugboats, cargo ships, and custom vessel types. The platform handles both planing hulls (high-speed vessels) and displacement hulls (conventional ships) ranging from 5m to 500m in length.
ShipTechAI follows CCS (China Classification Society) rules for high-speed craft, including both inland river rules and sea-going rules. The system calculates plate thickness for bottom, side, and deck plating based on vessel length, speed, deadrise angle, material properties, and navigation area.
Yes, all calculation results can be exported as JSON files containing complete vessel specifications including propeller design, hull resistance curves, structural requirements, shaft dimensions, and performance predictions.
Hybrid mode uses fast Python calculations with established engineering formulas (2 second response). Pure AI mode uses DeepSeek AI for 8-step empirical analysis with efficiency predictions in the realistic 50-72% range (20 second response). Pure AI provides more detailed engineering reasoning.
Questions, feedback, or collaboration opportunities
Professional vessel design platform with industry-standard calculations. Free access to all features.
Streamline your design process with instant propeller and structural calculations for quotations and tenders.