Cargo ships
The maritime autopilot for container ships
Stowage and lashing calculation stays in your class-approved loading computer. Naavra runs the ship around it: reefers, lashing gear, dangerous goods, fire readiness and the records you need when a box is lost or a cargo is claimed.
In the container ship pack
- Reefer log, alarm response and pre-trip register
- Container loss and adrift reports with a full audit trail
- Lashing gear counted and inspected by photo
- Dangerous-goods manifest and segregation by stowage position
- Cargo hold fire readiness and heavy-weather log
14 features for container ships, plus everything every ship type gets. Your colleagues:
A day in the life
Two seats, one day with Naavra
An illustrative day. The colleagues prepare and chase; people decide and sign.
Fleet superintendent, ashore
- 07:45Reefers overnight
Two alarms on one ship were answered within the hour, with the technician's attendance recorded.
- 10:00Lashing gear
Condemned twistlocks from last week's photo inspection are replaced and the inventory is back to plan.
- 13:30A reefer claim
The claims pack is built: temperature history, power logs and photos for the container in question.
- 15:30Hatch covers
A weathertightness test is due on two ships; the jobs come from the hatch-cover library.
Master, on board
- 04:10Heavy weather
Rolling events, course and speed changes logged; container checks after the weather are assigned to the deck crew.
- 07:30Hold fire rounds
Rounds and detection tests done by photo; the firefighting plan by bay is up to date.
- 11:00Dangerous goods
The manifest, declarations and segregation checks by stowage position for the next port.
- 16:45Port stay
Berth waiting and crane productivity recorded, with the just-in-time arrival notice.
What it does
Everything for container ships, grouped by the job it does
Look after the reefers
- Reefer monitoring logTemperatures, set points, alarms and power interruptions per reefer per voyage, from crew rounds by photo or a remote-monitoring export.
- Reefer alarm responseEach alarm assigned, with actions and technician attendance recorded.
- Plug and pre-trip registerPlug count and condition, pre-trip inspection certificates and power capacity checked before loading.
- Reefer claims packTemperature history, power logs and photos compiled per claim.
Keep the stack secure
- Lashing gear inventoryTwistlocks, lashing rods and turnbuckles counted and inspected by photo; condemned gear replaced and recorded.
- Cell guides, lashing bridges and hatch coversMaintenance templates and hatch-cover weathertightness tests.
- Heavy weather and parametric rollRolling events, course and speed changes, and container checks after heavy weather.
- Bay plans and stack weightsFinal bay plans, stack weights and verified gross mass stored per voyage from the loading computer, read-only.
Dangerous goods and fire
- Dangerous-goods manifest and segregationThe manifest, declarations, segregation checks and firefighting information by stowage position.
- Cargo hold fire readinessFire rounds, detection tests, drills and a firefighting plan by bay; misdeclared-cargo incidents recorded.
- Container loss and adrift reportingAn immediate report with position, number, type, dangerous-goods status, weather and drift; a verified final message and an audit trail.
Hire, ports and exhaust
- Liner charter hire and off-hireHire statements, off-hire events, bunker quantities and redelivery condition with the liner charterer.
- Port stay and terminal delayBerth waiting, crane productivity and just-in-time arrival notices, for disputes and emissions.
- Exhaust gas cleaning recordsScrubber operation, washwater and fault logs where fitted.
On every voyage
What every ship type gets
The voyage, performance and records work that tankers, gas carriers, container ships, breakbulk, Ro-Ro and offshore wind vessels all share.
Emissions and performance
- Emissions ledgerCO2, methane and nitrous oxide per voyage from fuel and bunker records; EU ETS, FuelEU, UK ETS and IMO DCS figures, split by charter-party clause, with a CII forecast.
- Speed and consumption claimsNoon reports against the charter-party warranty after good-weather filtering, with a claim or defence pack per voyage.
- Hull and propeller performancePerformance loss trended; cleaning and polishing scheduled on evidence; the biofouling record book.
Reports and evidence
- Noon and event reports by voiceThe Master speaks or photographs the noon data; the report fills itself, is checked against the last one and goes to the charterer.
- Voyage evidence bundleOrders, logs, weather, automation exports and photos, indexed and time-stamped per voyage, ready for a dispute or a P&I claim.
- Cargo claims packShortage, contamination or damage claims built from cargo records, photos and survey reports.
- Charter-party clause libraryWarranties, off-hire, laytime and exclusions read from each charter party and checked against the voyage.
Records the ship keeps
- Bunker quality and quantityDelivery notes, samples, test results and disputes tracked per stem.
- Ballast water recordsTreatment-system operation and faults, the record book, exemptions and contingency measures.
- Mooring line managementThe line management plan, line and tail records, winch brake tests and replacement by rule.
- Cyber resilience registerOnboard IT and OT assets, patches, access and incidents, kept to the class rules for newer ships.
- Vetting question setsSIRE 2.0 chapters, CDI and RightShip in the vetting self-check, with evidence from the daily record.
Regimes covered
The rules and inspections it keeps you ready for
Naavra keeps the records and evidence each of these asks for. The inspection, the certificate and the signature stay with the people and bodies who own them.
Container loss reporting, in force from 1 January 2026.
The dangerous-goods manifest, declarations and segregation by stowage position.
Stored per voyage from the loading computer.
Lashing gear inventory and inspection.
Exhaust gas cleaning records, where fitted.
Emissions from the fuel records, and port stays for just-in-time arrival.
Free tools
Try it on your own ship today
Full answers on screen, no account needed. Keep a result and it lands in a free workspace that grows into your deployment.
CII and EU ETS calculators
Your carbon intensity rating and your EU ETS allowance cost, with every factor named.
Try itDA checker
Paste a disbursement account. See which lines to query, and on what basis.
Try itVoice-to-report
Say what is broken, in your language. Get a clean English defect report.
Try itQuestions
About Naavra for container ships
Does Naavra replace our loading computer?
No. Stowage and lashing calculation stays in your class-approved loading computer. Naavra keeps its final bay plans, stack weights and verified gross mass per voyage, read-only.
How are reefer temperatures captured?
From the crew's rounds by photo, or from a remote-monitoring export where you have one.
What happens when a container is lost?
An immediate report with position, number, type, dangerous-goods status, weather and drift, then a verified final message, with the audit trail kept.
We charter to a liner. Does that fit?
Yes. Hire statements, off-hire, bunker quantities and redelivery condition are kept with the liner charterer on a link.