Navigation Zero

From first estimate to quotation: electric and hybrid propulsion, propeller, range, DEAS rating and traditional wooden hulls — in one app.

Navigation Zero by ILIOFOS Industrial & Marine is the professional design tool for electric and hybrid boat propulsion — from the first estimate to the quotation you hand your client.

Enter the boat's details and the app finds the motor, the battery bank and the peripherals, works out range and cost, and produces a complete PDF quotation.

PROPULSION DESIGN • Match an electric motor to the existing combustion engine by torque equivalence • Size from displacement and speed — or the other way round, from requirements: state what the boat must do and find what it takes • Hull material on every screen: composite, aluminium, steel, plywood, solid wood, carbon — it changes weight, resistance and finally the motor • Hybrid conversion: keep the combustion engine and add a motor with a battery — Transfluid mechanical subsystem, belt-drive solution, SAE check, gearbox reduction

PROPELLER AND RESISTANCE • Propeller selection and design from open-water series, with nozzles and cavitation check • Performance curve against rpm, and bollard pull • Hull resistance with methods validated per category, plus appendages and air drag

ENERGY, RANGE, SAIL • Route on a nautical chart with charging stops and a battery balance • Solar, a range-extending generator and hotel loads • Declare the rig and the sail counts in the trip energy; regeneration under sail returns energy to the battery • Live electricity and fuel prices by region — the real saving, not the theoretical one

DEAS — BOAT ENERGY EFFICIENCY INDEX An A–G energy rating from the CO₂ index, for electric and combustion boats alike, with a PDF certificate and QR code. Free for everyone.

TRADITIONAL WOODEN HULLS Nine documented types — trechantiri, perama, tserniki, karavoskaro, liberty, gaita, papadia, varkalas — with proportions measured from naval architects' drawings and from real hulls. Give length and timber; you get dimensions, member-by-member weight and a timber supply list with two figures: what goes into the hull and what to order.

DOCUMENTATION FOR TECHNICAL REVIEW The quotation can carry a technical annex with the methods used, the standards they rest on and their stated limits — for a classification society, a naval architect or a surveyor.

ELECTRICAL STUDY (new module) • Load balance underway and at anchor • Single-line diagram on A3 — or across A4 sheets, at full size, with continuation references • Circuit schedule with cable sections, voltage drop and protection — the three documents a classification society asks for

STANDARDS BY MODULE • resistance and propeller: ISO 8665 • geometry and stability: ISO 12217-1 · ISO 12217-2 · ISO 8666 • structure and weight: ISO 12215-5 · BV NR546/NR561/NR600 · ABS HSC · DNV-OS-C501 • reverse sizing: ISO 12215-5 · ISO 8665 • sailing: ISO 12215-9 · ISO 12215-5 • hybrid: ISO 16315 • workboats: ISO 12215-5 • electrical study: ISO 16315 · IEC 60092-507 · ISO 13297 · ISO 23625 · ISO 8846 · IEC 60529 · BV NR500 • energy and range: ISO 12217-1 · ISO/TS 25128 • DEAS: ISO/TS 25128 · ISO 8666 · ISO 8665

EDITIONS • Free: the WHOLE calculation — motor, battery, range, savings, DEAS grade • Study modules, each a one-off purchase: resistance and propeller · geometry and stability · structure and weight · reverse sizing · sailing · hybrid · traditional wooden hulls · workboats · electrical study • Annual subscriptions: Owner (chart, sea route, documents) · Boatbuilder (propulsion, workboats) · Naval Architect (geometry, structure)

Available in 16 languages.

For naval architects, shipyards, dealers and owners going electric.

ILIOFOS Industrial & Marine — info@iliofos.gr

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