AI-native shipbuilding. A vessel the system can read, and a build it can govern.

Drawing decisions

Drawn as a modular uncrewed surface vessel for an assumed role: persistent patrol and surveillance, with topside volumes reserved for sensors and for supporting crewed and uncrewed fleets, as a concept.

An assumed mission, chosen so the drawing has a reason for its proportions. No owner, requirement or operating profile stands behind it, and no mission system is selected.

A low, level sheer from the transom nearly to the stem, lifting only into the bow, with no forecastle step.

One unbroken deck line, so the hull reads long and flat on the water. Nothing breaks it but the house.

A long forefoot and a straight, strongly raked stem, with no bulb.

A bulb pays at speeds and lengths this hull is not drawn for. The house’s visor and faces are raked steeply, as the stem is, so hull and house read as one family of angles.

A raked transom over a counter, a skeg ahead of the propeller and the rudder under the counter.

Gives the one propeller the drawing shows a clear aperture and protects it. The number of shafts is a drawing choice, not a machinery arrangement.

A tumblehome section: a V bottom to a hard chine, a lower topside flaring out to a knuckle near the waterline that is the hull’s widest line, and above it a topside leaning inboard to the deck edge. Breadth and section form are drawing choices. The beam is not claimed.

A drawing has no breadth, so the section and the plan, with its chamfered quarters and long wedge of an entry, are proportions chosen so the profile reads as a hull. No stability, seakeeping or signature property is claimed for them.

One long, low faceted house amidships, narrowing forward as the deck narrows: an enclosed hangar at its aft end behind a raked face with its corners cut back, a visor forward, and the integrated mast rising from its roof as a second faceted stage.

Reads as one deliberate form, with nothing on the roof that is not part of it. An uncrewed vessel’s house holds sensors, electronics, control and the hangar, not accommodation.

A flush deck edge, with no bulwark, screen or rail along the sheer.

Keeps the hull one form from the waterline to the deck. Aft of the house no deck is left open to need one: the topside is carried up round the aft bay.

One enclosed aft bay from the house’s raked aft face to the transom: the topside carried up flush above the deck edge, a low cover raked down aft in panels inside a coaming, and a faceted aft end on the transom, a low riser raked as the transom is under a face raked as the stem is, no higher than the stem head; forward, its shoulders are faired down onto the side deck.

House and bay read in profile as one low wedge, and the volume aft of the house belongs to the hull instead of standing on an open deck. The cover is drawn closed, or stowed forward over illustrative unarmed reference shapes for static inspection; no mechanism, weathertightness or fit is designed.

Armament built into the ship in the house’s faceted idiom: a gun under a heavy faceted shield on the foredeck, a flush vertical-launch field with its hatch lids closed, close-in mounts fore and aft of the mast on plinths run into it, remote stations on sponsons faired into the house’s walls forward and on pedestals at the hangar roof’s edges aft, a canister launcher bay closed behind raked doors in each flank of the house, and closed tube doors in a frame in each flank of the aft bay.

Armament is shown as nonfunctional exterior equipment in a concept, for visual communication. No weapon system is selected, integrated or approved, and no capability, quantity, firing arc or ammunition arrangement is implied.

The rest of the topside drawn as reserved areas: flush sensor and communications faces on the integrated mast, the enclosed hangar and the aft bay it opens into, a flush stern hatch over a vehicle interface at the bay’s aft end, and a flush access hatch forward.

Topside areas are reserved volumes in a concept. No sensor, communications, aircraft or vehicle-handling system is selected, designed, integrated or approved. Enclosed hangar: a reserved volume, not an arrangement. Enclosed aft bay: a reserved volume, not a certified flight deck.

Graphite topsides over a dark boot top, carried up the aft bay’s sides; the house, the mast, the bay’s cover and the armament in gunmetal; a darker coat on the flush faces, the hangar door and the hatch lids; and the company’s name in silver on the topsides as a builder’s livery.

Paint for the rendering. It carries no state and no claim, and no hull number, draft mark or class notation.

Assumed, and unclaimed

Length overall: 50 m (about 165 ft)

The founder’s approved concept baseline. An assumption, not a design length from naval-architecture analysis.

Drawing scale: 50 m across the profile, isotropic

The stated length, used only to draw. Every other dimension stays unclaimed.

Beam: not claimed

Not assumed and not measured off the drawing: it would read as a design value.

Depth: not claimed

Not assumed and not measured off the drawing: it would read as a design value.

Draft: not claimed

Not assumed and not measured off the drawing: it would read as a design value.

Displacement: not claimed

Not assumed and not measured off the drawing: it would read as a design value.

Measured off the drawing

Sheer rise to the stem head: 13% of the drawn depth at the low point

Deck edge at the stem head against the lowest point of the sheer.

Stem rake: 54° from vertical, forefoot to stem head

Chord of the stem curve.

Length on the drawn waterline: 93% of the length overall

Transom to stem along the drawn waterline. The waterline is a drawing line, not a computed flotation.

Length to drawn breadth: 4.5 to 1

Length overall against twice the greatest half-breadth of the schematic loft, at the knuckle. A drawing proportion.

Topside tumblehome amidships: 17° inboard of vertical, knuckle to deck edge

The topside above the knuckle on the schematic loft amidships. A drawing proportion.

Drawn freeboard at the low point: 43% of the drawn depth

Deck edge above the drawn waterline at the lowest point of the sheer.

Hypotheses, untested

The drawn proportions are of the order a steel patrol vessel of about 50 m is built to.

Tested by: A naval architect producing a lines plan and comparing it with built vessels of that length.

The hull could float near the drawn waterline at a plausible loaded weight.

Tested by: A weight estimate and hydrostatics on a faired hull. Until then the waterline is a line on a drawing.

The aperture leaves room for a propeller of the drawn diameter with adequate tip clearance.

Tested by: A powering estimate fixing the propeller, then clearance rules applied to that propeller.

Validated engineering data

None. No naval architect, model basin or authority has reviewed this hull.

Outstanding before this is a design

A faired lines plan

The hull form itself, in place of a drawn profile and a schematic section.

A weight and center-of-gravity estimate

What the hull must carry, and where.

Hydrostatics

Displacement, draft and trim. The drawn waterline establishes none of them.

Intact and damage stability

Whether the vessel stays upright, loaded and damaged.

Resistance and powering

Speed, the engine and the propeller.

Structural design and scantlings

Plate, frames and a load path, in place of schematic stations and dividers.

Load line and freeboard assignment

The deepest the vessel may legally float.

Classification and flag-state review

Whether an authority accepts the design. None has seen it.

Geometry checks, recomputed from the profile

They catch a drawing error. Passing them says nothing about seaworthiness.

• PassOne body, transom to stem. Every station cuts the outline once: no detached part.
• PassOutline closed and continuous. The lower edge is unbroken and meets the sheer at the stem head.
• PassDeck edge above the drawn waterline. Along the whole sheer.
• PassPropeller clear and submerged. Its disc clears the counter above and the baseline below, under the drawn waterline.
• PassRudder clear of the propeller. The rudder stands aft of the blades, under the counter.
• PassRudder hung from the hull. Its root meets the underside of the counter.
• PassSkeg under the run. From the aperture forward to the flat of keel.
• PassDeckhouse seated. Its feet follow the sheer into the deck.
• PassIntegrated mast seated on the roof. It rises from the roof, inside the house’s footprint.
• PassAft bay from the house to the transom. It stands on the deck from the transom to the house, its cover meets the house’s raked aft face below the roof, and the stern hatch lies under its cover.
• PassStations and dividers span the hull. Each runs from the deck edge to the underside at its station.
• PassSystems inside the vessel. Every physical route lies inside the hull, the house, the integrated mast or the aft bay.