Ship Design MBL, 60% Brake Render, 80% Design Holding, Drum-Layer Derating, Hydraulic Jack Pressure & Annual Brake Test
Mooring Winch Brake Rendering, Drum Layer & Brake Test Tool
Calculate the brake torque and hydraulic test pressure behind a safe mooring winch setting. Screen the MEG4 60% operational rendering target, 80% design holding reference, split versus undivided drum layers, line WLL and LDBF hierarchy, measured brake-test pressure, over-tight and under-holding brakes, annual test due dates and deck-wide winch results.
Currency
Currency selector changes display only. No exchange-rate conversion is performed.
Mooring Line & Strength Basis
Brake rendering should remain tied to Ship Design MBL, not increased simply because a stronger replacement line is fitted.
kN.
kN.
% of Ship Design MBL.
MEG4 recommends 60% SDMBL.
MEG4 design reference.
% SDMBL project / class screen.
±% of target.
Drum Geometry & Layer
mm.
mm.
kN.
Hydraulic Brake Test Kit
mm.
degrees to lever arm.
cm².
bar.
bar.
bar, 0 = none.
±%.
months.
Multi-Winch Brake Test Register
Measured jack pressure is converted to first-layer equivalent and actual rendering at each entered operating layer.
| Winch | SDMBL | Drum D | Line d | Layer | Lever | Jack area | Measured bar |
|---|
Annual Test Campaign Cost
%.
hours.
Selected currency/hour.
MEG4 / SIRE Readiness
Screening only:
This is not a maker brake-test procedure, class approval, mooring analysis, brake-band friction calculation or authorization to change a brake setting. Use the approved winch test kit and current vessel MSMP / LMP. A brake set too high can remove weak-link protection; a brake set too low can render prematurely.