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Search and Rescue: Speed, Distance & Time Calculations for Efficient Rescue Operations

Learn how to use speed, distance, and time calculations to plan and execute effective rescue missions, minimizing risks and casualties. Explore real-life scenarios and apply math skills to coordinate and execute complex rescue operations.

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Search and Rescue: Speed, Distance & Time Calculations for Efficient Rescue Operations

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  1. Speed, distance & time lesson SaRsdt.lgfl.net Objectives: To use speed, distance & time calculations to plan a rescue operation To perform calculations to minimise risk and casualties

  2. Job Requirements Maths required: • Speed, distance & time • Multiplication • Division • Interpreting Data • Converting units Equipment required: • Protractor • Ruler • Pencil • Pen • Rubber • Calculator

  3. Videos • Why are traditional paper charts still used in SaR? Part 2 • How do Coastguard operators get the information they need during a rescue? • What technology is used to help spot casualties? • Can you give an example of the Maths involved in your decisions?

  4. Sikorsky S-92 Bristow's S-92 SAR aircraft are the first in Europe to be certified for night-vision goggles (NVG) and have the first certified NVG-compatible “glass cockpit” . • Air speed: 145 knots (165 mph) • Range: 250 nautical miles • Normal flight crew: 4 • Capacity: 21 persons as required – 3 stretchers, 10 seated persons, additional standing persons • Endurance: over 4 hours • Twin hoist

  5. Atlantic 85 B-Class • Crew: 4 • Max Speed: 35 knots (40 mph) • Fuel Capacity: 210 litres • Range/Endurance: 2.5 hrs • Engines: 2 x Yamaha 115hp • Survivor Capacity: 20 • Length: 8.44m • Beam/Width: 2.85m

  6. Rescuing survivors Sometimes the Coastguard is called out to rescue large vessels with lots of people on board. This adds a lot of difficulty to the Coastguard's job as they have to co-ordinate a multi-vessel rescue with lots of journeys. The next scenarios will require you to apply knowledge of speed, distance and time to solve challenging real world rescue problems.

  7. Example rescue – scenario 1 A passenger ferry has put in a distress call and given its location as shown on the map. The nearest available lifeboat stations and helicopter pads are shown on the map. There are 440 people on board that need rescuing. Plan a rescue operation to get everyone back to shore in the quickest possible time.

  8. Calculating distances and time You know that the helicopter has a max speed of 165mph, and the boats 40mph. You can find the time taken to travel to / from the rescue site: e.g. Boat A: 9/40 = 0.225 hours = 13.5 minutes It takes on average 1 minute per survivor to rescue from a boat. Refuelling takes 5 minutes.

  9. Creating a rescue plan Coastguards need to work out the following when creating their plans: • Time taken to get to site for boats/helicopters • Time taken to rescue people from the vessel • The range/endurance of the helicopters/boats (will they need to refuel?) • Is anyone overboard? If so, they need to act quickly to help them to prevent hypothermia.

  10. Hypothermia

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