Working with helicopters in search and rescue

Helicopter search, winching, and extraction are used when a hiker cannot safely reach help, or when time matters. In most cases, helicopters support urgent medical response, assist ground teams, or locate missing people in terrain that is slow or dangerous to access on foot.

For hikers, the priority is simple. Stay safe, follow instructions, and avoid actions that create extra risk for crew, rescuers, or your group. This guide outlines practical behaviours that reduce hazards around helicopters and improve outcomes during a search or rescue.

When a helicopter rescue may be required

Medical emergencies

• Injuries. Serious injuries such as fractures, head trauma, or severe sprains can immobilise a hiker and prevent self-rescue.
• Medical conditions. Sudden illness, altitude illness, or worsening pre-existing conditions can require urgent medical support.
• Exposure. Dehydration, hypothermia, and heat illness can become life-threatening, particularly when movement slows or shelter is limited.

Environmental dangers

• Terrain traps. Getting lost in remote areas, cliffs, steep gullies, or impassable obstacles can prevent safe movement.
• Severe weather. Snowstorms, flash flooding, high winds, or rapidly deteriorating conditions can remove safe options for exit.
• Wildlife encounters. Serious incidents are uncommon, but injury or panic in difficult terrain can contribute to a rescue situation.

Lost, disoriented, or overdue

• Navigation errors. Misreading a map, losing the track, or becoming disoriented can lead to escalating risk as daylight and energy decline.
• Fatigue and low energy. Exhaustion reduces pace, decision quality, and the ability to correct errors.
• Darkness. Being caught out after dark with limited lighting and shelter can quickly become unsafe, even on familiar routes.

Helicopter search and extraction should be treated as a last resort. The best outcome is not needing one. Plan conservatively, carry the essentials, and leave clear trip intentions before departure.

If self-rescue is not possible and safety is at risk, contact emergency services. In Australia, dial 000 and follow instructions. If you have a Personal Locator Beacon, only activate it in a situation of grave and imminent danger.

Landing and take-off safety

If a helicopter is attempting to land, your job is to reduce hazards and do exactly what the crew instructs. Rotor wash can lift debris and destabilise people, and pilots may abort a landing if the site is unsafe or crowded.

• Establish a clear landing zone. If instructed, identify an area around 7 m x 7 m that is free of trees, wires, loose branches, and obstacles. Consider the approach and departure path, not just the touchdown point.
• Secure loose items. Rotor wash can remove hats, jackets, packs, bottles, and ground sheets. Stow gear low and tight, and keep items out of the landing area.
• Keep distance. Stay well back unless directed otherwise. A minimum of 50 m is a good baseline where terrain allows, particularly during approach and departure.
• Do not approach to help. Do not move towards the helicopter unless you are clearly signalled or instructed by crew.

Winching operations

Winching introduces additional hazards including strong rotor wash, noise, reduced visibility, and a moving cable. Treat a hovering helicopter as an exclusion zone unless you are being actively directed by the winch operator or crew member on the ground.

• Crew takes the lead. A crew member may be lowered first to control the site. Follow their instructions precisely and do not approach the aircraft unless told.
• Maintain separation. Keep people and equipment well clear. Avoid moving into the winch area and never touch a cable or hook unless directed.

Being a passenger

If you are directed to board a helicopter, your safety depends on following procedure. Helicopters have multiple hazard zones, and conditions can change quickly due to wind and terrain effects.

• Follow instructions. Listen to crew briefings and follow directions exactly. Ask a question if you do not understand.
• Stay secured. Keep your seatbelt fastened until you are told it is safe to remove it. Sudden changes in altitude and turbulence are normal in helicopter operations.

Around grounded and hovering helicopters

Approaching a helicopter incorrectly is one of the most dangerous things a bystander can do. Always wait for clear direction from the pilot or crew, and keep movement slow and predictable.

• Wait for permission. Do not approach or leave until the pilot or crew signals you to do so.
• Stay visible. Approach and depart from the front where the pilot can see you. Avoid the rear and never walk under the tail boom.
• Manage slope risk. If the helicopter is on a slope, rotor clearance is reduced on the uphill side. Only move as directed and keep your profile low.
• Protect eyes and face. Rotor wash can lift dust, grit, snow, and vegetation. If debris increases, crouch or sit and wait for direction rather than pushing forward.
• Control long items. Keep poles and stretchers low, parallel to the ground, and held firmly. Do not raise items above waist height near a helicopter.

Do not distract aircraft operating nearby

If helicopters or light aircraft are operating nearby but not focused on you, avoid actions that interfere with their task. Assume they are working under time pressure and limited fuel, and that unnecessary signals may distract them from another search.

• Stay calm and do not wave. Unnecessary movement can be interpreted as a distress signal and distract aircrew.
• Observe patterns. If an aircraft circles, it may be checking location or scanning terrain. Watch for any message drops and read instructions carefully.
• Respond accurately. If asked questions, provide clear, factual answers and follow instructions. Do not improvise or guess.
• Prioritise your own safety. Do not chase aircraft or leave your planned route unless instructed. Maintain group cohesion and continue managing risk.

Getting noticed during a search

If you are lost, injured, or sheltering and you believe aircraft are searching for you, focus on clear signals in an open area where safe to do so. Avoid ambiguous gestures and keep signalling consistent.

• Use high-contrast markers. Lay out bright material in an open area. Size matters. Large shapes are easier to identify than small items.
• Use smoke only if safe. A smoky fire can be visible during daylight, but fire risk can be extreme. Only do this where legal, safe, and controllable, and extinguish completely.
• Use clear arm signals. Both arms raised in a V is the standard distress signal. Avoid single-arm waving, which can be mistaken for a greeting.
• Use reflection and movement. A mirror, phone screen, or reflective surface can help. Slow, deliberate motion is more recognisable than frantic movement.
• Use light carefully at night. A torch beam can be effective. Aim slightly above the aircraft and avoid shining directly at the cockpit.
• Do not assume you have been seen. Searchlights and circling can occur without positive identification. Continue signalling until you receive confirmed instructions.

Assisting search efforts

If you have information relevant to an active search, provide it. Accurate, timely information can reduce search time and risk to rescuers.

• Report relevant details. If you have information about missing people, call 000 and ask for Police. Share last known location, time, direction of travel, group description, and any hazards.
• Understand operational limits. A helicopter may not be able to land even if the site looks clear. Fuel load, wind, temperature, altitude, and crew tasking all affect capability. If they cannot land, ground response may still be the safest option.

Final thoughts

Helicopters are critical tools in search and rescue, but they introduce hazards that require disciplined behaviour. Move slowly, follow instructions, and keep people and equipment under control. If you are being rescued, focus on staying calm, staying together, and making yourself easy to manage.

Images: VICSES Bacchus Marsh Unit

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