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Stowage solution · LCT (landing craft)

LCT stowage and loading plan software

Plan LCT loads of mining equipment, fuel trucks, project materials and inter-island supplies. Roll-on and roll-off order over the bow ramp, axle loads on the ramp and deck, and the draft and trim for beaching are checked on every change. The LCT module is part of the first rollout wave.

Rollout wave 1Plan Cargo. Balance Vessel. Sail Safer.

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Vessel Planner · Demo vessel Illustration
  • Discharge order matches the ramp
  • Cargo CoG close to target
  • Stability & strength from the deterministic engine
Illustration with a fictional vessel and sample data — not a stability calculation result. Shore-side planning & decision support. The class-approved onboard loading computer remains the official reference.

Problems it solves

Discharge order ends up reversed

On an LCT the last vehicle on is the first off. A wrong order forces heavy equipment to be shuffled on a narrow deck after the craft has beached.

Ramp and axle loads go unchecked

Excavators and loaded trucks can exceed the ramp limit or the per-axle deck load. These figures are rarely calculated before vehicles drive on.

Beaching trim decided on site

Too much forward draft keeps the ramp from reaching the shore. Adjusting ballast and cargo positions on site wastes the tide window.

Used by: LCT operators and mastersMine site logistics teamsContractors on remote islandsMarine superintendentsHeavy equipment forwarders

What is modelled

  • Open well deck with load zones (t/m²) and axle load limits
  • Bow ramp with load and angle limits
  • Vehicle lanes and clearance to the side walls
  • Fore and aft ballast, fuel and fresh water tanks
  • Lashing points for vehicles and loose cargo

Checked on every move

  • Ramp load

    Vehicle weight and the heaviest axle load are compared with the ramp limit as each vehicle drives on or off.

  • Axle and deck load

    Load per axle or per track footprint is compared with the zone deck limit; tracked equipment uses its real footprint.

  • Roll-on and roll-off order

    Cargo for the first discharge point sits closest to the ramp; vehicle heading is recorded so units can drive off without turning.

  • Beaching draft and trim

    Forward and aft drafts are calculated for the arrival condition and compared with the target forward draft entered for the beaching site.

  • Stability

    GM, heel and the vessel’s applicable stability criteria are computed from imported hydrostatics and KN, including tank free surface corrections.

  • Clearance and lashing

    Gaps between vehicles and to the side walls are checked to leave room for lashings, crew access and escape routes.

Shore-side planning & decision support. The class-approved onboard loading computer remains the official reference.

Workflow

  1. Model the LCT

    Start from an LCT template, fill in dimensions, well deck, load zones, ramp and tanks, then import hydrostatics from the stability booklet.

  2. Enter vehicles and cargo

    Record each unit’s weight, dimensions, axle spacing and loads, and discharge point; manufacturer specs can be imported from Excel.

  3. Arrange order and positions

    Place units in lanes by discharge order; the right panel shows drafts, trim, GM and any ramp or deck load warnings.

  4. Check arrival and approve

    Check the beaching trim at every discharge point, adjust ballast if needed, then send the plan to the master for approval.

Outputs

  • Well deck layout with vehicle order and heading (PDF)
  • Load list per discharge point
  • Axle loads against ramp and deck limits
  • Departure and arrival conditions: drafts, trim, GM

Example scenario

Illustration — fictional vessel, not a customer case study

Illustrative 60 m LCT to two beaching sites

Situation

Illustration with a fictional 60 m LCT carrying 2 excavators of 20 t, 3 fuel tank trucks, 1 motor grader and foundation materials to two beaching sites on different islands.

Steps in the planner

  1. 01The planner enters axle loads from manufacturer specs; one fully loaded tank truck is close to the ramp limit and is flagged.
  2. 02Units for the first site go nearest the ramp and units for the second site behind them, all facing the ramp.
  3. 03The arrival condition at the first site shows a forward draft above target; forward ballast is reduced so the craft trims further by the stern.
  4. 04After discharge at the first site, the next leg is recalculated and still meets the criteria.

Result

Illustrative result: no unit needs shifting on site, the forward draft is below target at both sites, and every axle load is within limits.

Illustration with a fictional vessel and sample data — not a stability calculation result. Shore-side planning & decision support. The class-approved onboard loading computer remains the official reference.

See it with your vessel data

A demo video is coming. Meanwhile we schedule a live demo with a demo vessel or your own vessel data.

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Frequently asked questions

Do LCTs and barges use the same module?

Both share the same core (Vessel Builder, cargo, voyage, constraints, stability). The LCT module adds the ramp, vehicle lanes, roll-on/roll-off order and beaching trim checks.

What about voyages to several islands?

A voyage can hold a rotation of several discharge points. Each leg is calculated in sequence after the previous point’s operations, so stability is visible on every leg.

Does this replace the LCT’s stability booklet?

No. Results are shore-side planning and decision support. The class-approved stability booklet and loading computer remain the master’s official reference.

Can it be used where there is no signal?

Plans can be reviewed on board in offline mode and synced when back online, with conflict detection if the office changed something.

Other vessel types

Plan Cargo. Balance Vessel. Sail Safer.

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