PST-L4.2

Helicopter rescue and yacht specifics

PST-M4 · Rescue · PST-M4-A Locating devices and pyrotechnics, helicopter rescue, and the superyacht view of PST.

How a **helicopter winching** works from the deck or the raft, the **hi-line**, and how all of PST applies on a superyacht.

Helicopter rescue; yacht specifics

Governing: MGN 161 (M+F), Hi-Line Technique (status to be confirmed); STCW Table A-VI/1-1; REG Yacht Code. Builds on: L4.1.

Helicopter winching

A search and rescue helicopter may lift survivors from the water, a liferaft or the deck. The aircrew run the operation. Your job is to make their job easy and not become a hazard.

Before it arrives

  • Communicate: VHF with the aircraft or via the Coastguard. The noise overhead is extreme; ask for repeats and use handheld radios so the helmsman can hear.
  • Clear the deck in the pickup area: stow or lash cushions, covers, awnings, flags, lines and loose kit. Rotor downwash lifts anything unsecured into the rotors or into people.
  • Lower aerials, flagstaffs and anything that can be lowered near the pickup area.
  • Steer as the pilot asks, often into or near the wind at steady speed. The helmsman concentrates on a straight course and does not look up.
  • Brief the casualty and handlers. Lifejackets on.

Static electricity

A helicopter builds up a static charge. Do not touch the hook, strop or line until it has touched the deck or the water, or an earthing wire has done so. The Yachting Monthly guidance notes an earthing wire is lowered into the water from the main wire before you grab it.

The hi-line

When the aircraft cannot hover directly over a cluttered deck, it lowers a weighted hi-line first, connected via a weak link to the winch hook. MGN 161 sets the rules:

Do Do not
Take up the slack and haul in only when instructed by radio or hand signal Secure the line to any part of the vessel
Have a second person coil the slack into a bucket, clear of obstructions Let the line foul rails, rigging or the propeller
Wear gloves against rope burns Hold on if the aircraft breaks away
Pay out or release the line if the helicopter breaks away Wrap the line around your hand

WARNING — Never make it fast A hi-line tied to a cleat connects a moving aircraft to a moving ship. If either moves unexpectedly, something breaks, and it may be the aircraft.

From the raft or water

  • Keep the raft's entrances clear; the winchman may enter the water beside it.
  • Do not grab the winchman or the wire. Do what you are told.
  • In the strop: arms down by your sides once lifted. Raising your arms can slide you out.

PST on a superyacht

Yacht reality What it means for you
Guests unfamiliar with alarms and kit Your muster duty may be escorting a named guest group
Guest staterooms below decks Stateroom sweeps are drilled under Annex C
Water toys and garages Fire and flooding risks near the waterline; shell doors must be closed at sea
Tenders and rescue boat The first help for people in the water; used at the master's order
Charter itineraries Remote anchorages mean long waits for rescue
Mixed nationalities Emergency instructions must be understood by everyone
Seasonal crew turnover The 25% drill rule applies frequently

TIP — Your part of the muster list Read the muster list on day one and ask what each line means for you. The day it matters, nobody will have time to explain.

PST is the foundation. The next steps are Proficiency in Survival Craft and Rescue Boats for those who will take charge of craft, and the five-yearly update covered in L1.1.

Practice questions

5 questions

recall · core

Under MGN 161, what must you never do with a helicopter hi-line? (a) Coil it in a bucket (b) Wear gloves while handling it (c) Secure it to any part of the vessel (d) Haul it in when instructed

recall · core

When should the hi-line be hauled in? (a) When the helmsman decides (b) Only when instructed by the helicopter crew by radio or hand signal (c) When the winchman is halfway down (d) As soon as it reaches the deck

recall · core

Why is the helicopter's line or hook allowed to touch the water or deck before being handled? (a) To discharge static electricity (b) To wet it for grip (c) To measure the height (d) To test its strength

recall · core

What should be done to the deck before a winching operation? (a) Raise all flags (b) Secure or stow loose items that downwash could lift (c) Open the garage door (d) Rig awnings for shade

scenario · core

A guest on a 70 m yacht needs evacuation by helicopter from the aft deck. The helicopter lowers a hi-line. A deckhand starts to make it fast to a cleat "so it doesn't blow away". What do you do? (a) Stop him: hold the line by hand, take up slack, coil it into a bucket and haul only on the aircrew's signal (b) Cut the line (c) Help him tie it off (d) Tell the helicopter to wait

Independent study. xplor is not an accredited training provider and awards no certificate or Certificate of Competency. The PST certificate of proficiency can only be issued after completing the practical course, including the pool and liferaft exercises, at an MCA-approved (or flag-recognised) training centre. AI-drafted content pending subject-matter-expert review.