Riggers in shipbuilding, recruitment, certification, and the lift plan

A rigger slings the load, signals the crane, and lands the lift. On a hull-block move from the assembly hall to the slipway, the rigger crew runs the show. The crane operator follows the rigger's signals. In a Croatian shipyard a short rigger panel means stopped block moves, and a stopped block move at the wrong week of the campaign cascades through three subsequent trades.

What a rigger actually does

The rigger reads the lift plan, inspects the rigging gear (slings, shackles, spreader bars, hooks), calculates load weight and centre of gravity, attaches the gear, signals the crane operator through the lift, and lands the load. On a hull-block move, the rigger crew of 4-6 works under a lead rigger who carries the lift plan. The crane operator does not move the hook without the lead rigger's signal.

Three categories of lift run through a shipyard each week:

Hull-block moves, a 60-tonne block from the assembly hall to the slipway. Slow, planned, often multiple times per week. The yard's lifting-operations supervisor signs off the lift plan and the rigger crew briefs in advance.

Outfitting lifts, engines, gearboxes, tanks into the hull. Heavier, slower, sometimes through narrow openings. The rigger calculates the rigging geometry for clearance.

Daily-operations lifts, pipe spools, scaffolding sections, heavy tools. Lighter loads, multiple per shift, less formal lift plans. The rigger crew handles these on a roster.

A 200-worker shipyard typically runs 6-10 riggers across all three categories. A larger yard with simultaneous block-assembly and outfitting can run 15-20.

The certification stack

Croatian shipyards run rigger certification against several converging standards. The exact pack depends on the yard's client base and the work category.

LEEA (Lifting Equipment Engineers Association, UK) is the rigging-gear certification authority Croatian shipyards most commonly accept for European work. A LEEA-certified rigger has completed the General Rigging Awareness module plus the practical assessment on rigging-gear inspection and lift planning.

OPITO (Offshore Petroleum Industry Training Organization) governs offshore-sector rigging. Croatian yards that build offshore-support vessels or work on platform refits run OPITO certification on the rigger panel.

OSHA-equivalent training (US-derived, often issued by IADC or NCCER programmes in the Gulf) covers basic rigging awareness. Filipino, Indian, and Nepali riggers trained in the Gulf typically hold OSHA-equivalent plus the IADC rigger-signal-person certificate.

Croatian local competency, the yard runs its own induction-day rigger orientation, covering yard-specific lift routes, local hand-signal conventions (which differ subtly from the IADC standard), and the yard's permit-to-lift document. One-day overlay at arrival regardless of corridor.

For a foreign rigger panel, we screen against the yard's stated standard pack. Most Croatian Adriatic yards accept LEEA or OPITO as primary. OSHA-equivalent gets re-certified through LEEA within the first 60 days at the yard's training contractor.

Where the corridors are strong

Philippines is the strongest rigger corridor for Adriatic shipbuilding. The Filipino Gulf-trained cohort runs deep on rigging skills; the Aramco-side refinery rigging market in Saudi Arabia has trained thousands of Filipino riggers across two decades. The Filipino with five years of Gulf rigger work carries the LEEA + OSHA-equivalent stack and slots into a Croatian yard with one day of local-overlay.

India runs second. The Mumbai-based rigging cohort sits in offshore-sector work for the GCC and Southeast Asian markets. Pay band 0.7-0.9x Croatian baseline. Mobilisation 6-8 weeks ready-pipeline.

Bosnia and Serbia carry domestic riggers from the heavy-industrial steel sector. The certification stack runs differently (local DIN or EN ISO standards) and the LEEA conversion is a 5-day course at arrival. Pay band 0.9-1.1x, mobilisation 4-6 weeks.

Nepal runs lighter on riggers. We source from the Gulf-returned cohort. Volume is lower than welder or scaffolder volume.

For more on the corridor mix across shipbuilding trades and how the rigger panel sits inside the bigger campaign, the shipbuilding workforce master guide covers the full corridor picture.

The trade test for riggers

The rigger trade test is more about safety judgement and lift-plan reading than rope-handling skill. Inside the screening booth, the candidate gets:

A lift plan diagram with a 20-tonne load, four sling points, and a centre-of-gravity offset. The candidate calculates the sling tension, identifies the appropriate sling SWL (safe working load), and explains the rigging geometry. The grader scores against the plan's correct answer.

Then a hand-signal demonstration. The grader runs through 12 standard signals (boom up, boom down, hoist, lower, swing left, swing right, dog everything, stop, emergency stop, slow, retract, extend). The rigger demonstrates each and the grader scores on accuracy and clarity.

Then a gear-inspection round. The grader presents 6 pieces of rigging gear, two with defects (a sling with a cut strand, a shackle with deformed pin). The rigger identifies the defects and explains the rejection criteria.

The full test runs 90 minutes. A clean rigger passes all three rounds; a weak rigger fails the gear inspection. The screening filters about 25% of the applicant pool.

Why riggers never deploy solo

A rigger crew on a Croatian shipyard works in cells of 3-4. The lead rigger carries the lift plan, the bansman (signal-person) signals the crane, the slingers attach and detach gear. The yard does not put a solo rigger on any lift above 5 tonnes.

We deploy in 3-rigger cells matched to the yard's expected lift workload. A yard running 8 lifts per day needs 6-8 riggers across day-and-night shift. A yard running 4 lifts per day needs 4-5. Corridor mix can vary within the cell (a Filipino lead, two Indian slingers, a Bosnian bansman is operationally normal). Cell composition is fixed at deployment, not improvised at the yard.

The safety standards article covers the broader safety regime the rigger operates under.

What the deployment delivers

For each rigger on the panel, the yard receives: certification documents (LEEA or OPITO primary, OSHA-equivalent secondary), employment history with verified references from Gulf or offshore work, trade-test results, medical fit-certificate, safety competency record. The yard's lifting-operations supervisor reviews and signs off on the panel before visa stamping.

The first-week induction at the yard covers local-overlay items: hand-signal convention adjustments, the yard's permit-to-lift document, the gear store location, emergency stop locations on the slipway cranes. By end of week one, the rigger crew is on the rate-floor.

If you are scoping a shipyard rigger panel (headcount by lift category, corridor preference, certification target), the corridor-fit conversation runs 20 minutes. The number sits on the Zagreb branch page.