2026 SOLAS V/19, Heel Angle, Roll Amplitude, Roll Period, Roll Rate, Angular Acceleration, Cargo Shift, Lashing Margin & VDR Integration

Ship Electronic Inclinometer, Roll Motion, Cargo Shift & Lashing Risk Tool

Convert electronic-inclinometer roll data into an owner/operator risk picture. Screen the new SOLAS carriage requirement, IMO instrument performance, roll-period resonance proximity, peak roll rate and angular acceleration, motion-derived transverse cargo acceleration, friction and lashing demand, cargo-shift margin, overturning margin, threshold exceedance cycles, VDR interface readiness and the potential value of earlier operational intervention.

Currency
Currency selector changes display only. No exchange-rate conversion is performed.

2026 SOLAS Applicability

SOLAS V/19.2.12 applies to qualifying new containerships and bulk carriers. The tool distinguishes that statutory carriage question from the separate cargo-risk calculations below.

The new carriage rule applies to ships constructed on or after 1 January 2026.

Electronic Inclinometer & IMO Performance Inputs

± degrees. MSC.363(92) requires ±90° measurement capability.
s.
s. IMO minimum measurement range is 4-40 s.
± degrees.
± seconds.
Hz. MSC.363(92) calls for at least 5 Hz to other systems such as VDR.
± degrees. IMO requires actual heel analogue indication through ±45°.

Live / Representative Roll Event

degrees, absolute magnitude used for current-heel screen.
degrees.
degrees.
s, peak-to-peak on the same side.
s. Used only for resonance-proximity screening.
degrees.
degrees.
Used for simple growth-rate screen.
minutes.

Advanced Roll Event Register

Compare multiple observed or simulated events. Each row can use a different amplitude, period, encounter period, duration, cargo mass and cargo CG height. The worst risk score is brought forward automatically.

EventAmplitude °Period sEncounter sDuration minCargo tCG h m

Roll & Resonance Alert Thresholds

degrees. This is an owner / ship-specific operational threshold, not an IMO universal alarm angle.
degrees/s.
g at cargo CG, screening threshold.
%. Flags encounter-period ratios near 1.0 or 0.5.

Cargo Shift & Lashing Risk Screen

This section converts roll motion to a transparent rigid-body screening load. It is intentionally separate from approved container-lashing software, grain stability, IMSBC cargo-shift analysis or the Cargo Securing Manual.

t represented by this securing group.
m.
m transverse footprint for overturning screen.
Use the approved / tested cargo-deck interface value.
kN for the represented cargo group.
% of entered MSL.
m for overturning resistance screen.
Resistance / transverse demand.
% operational action threshold.

Equipment / Integration Cost & Cargo Exposure

Selected currency per material incident.
%/year, user assumption.
%. Do not attribute this to the sensor alone unless supported by fleet data.

2026 Electronic Inclinometer Readiness

Navigation / cargo-risk screening only: This tool is not an approved stability computer, Cargo Securing Manual calculation, container-lashing solver, grain-heeling calculation, IMSBC cargo-shift assessment, second-generation intact-stability assessment, VDR type-approval test or ship-specific heavy-weather guidance. The motion-derived cargo acceleration combines peak gravity and roll-angular-acceleration terms as a transparent conservative screen. Actual cargo securing loads depend on six-degree-of-freedom ship motions, phase relationships, cargo geometry, vertical acceleration, elasticity, impact, lashing stiffness and approved class / flag methods.
2026 regulatory / technical basis: SOLAS V/19.2.12 requires containerships and bulk carriers of 3,000 GT and upwards constructed on or after 1 January 2026 to carry an electronic inclinometer, or other means, to determine, display and record roll motion. The requirement does not apply to cargo ships only occasionally carrying dry cargo in bulk or general cargo ships carrying containers on deck. IMO Resolution MSC.363(92) requires reliable heel angle, roll amplitude and roll-period determination, ±90° heel / roll-amplitude measurement capability, a minimum 4-40 s roll-period range, specified angle / period accuracy, bridge display, at least 5 Hz instantaneous-heel interface to systems such as VDR, recorded sensor position and main + emergency power. ISO 19697:2026 is the current international standard for electronic inclinometers. IMO's adverse-weather guidance recognizes synchronous and parametric rolling as dangerous phenomena, and the CSS Code notes that predominantly transverse ship accelerations create many cargo-securing problems. The statutory electronic inclinometer is a navigation / dynamic-situation device; this ShipUniverse cargo-risk layer is a separate screening calculation.
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