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Heat stroke is a severe and potentially life-threatening condition characterised by the body's inability to regulate its internal temperature. It occurs when prolonged exposure to high temperatures overwhelms the body's cooling mechanisms, leading to a dangerous rise in core temperature. Common symptoms include confusion, rapid heartbeat, nausea, and hot, dry skin. Heat stroke requires immediate attention, as it can result in organ damage or failure if left untreated. It is a critical condition that demands swift intervention, including moving to a cooler environment, hydration, and, in severe cases, emergency medical assistance.

As you can imagine, we as glider pilots face unique challenges when navigating the skies. One of the often-underestimated risks is heat stroke. Soaring at high altitudes exposes pilots to intense sunlight and temperature variations that can lead to heat-related illnesses. To ensure a safe and enjoyable flight, it's crucial for glider pilots to be aware of the risks and take preventive measures against heat stroke.

Pre-Flight Preparations:

  • Hydration: Begin the hydration process well before taking flight, this begins during the week while at work and planning your weekend of soaring. Consume plenty of water (including electrolytes) in the hours leading up to your flight, and avoid beverages with caffeine or alcohol, as they can contribute to dehydration.  Personally, I’ll have one 50:50 mix of a 600ml bottle of Powerade: water before launch, plus the water I feel I need.
  • Proper Clothing: Choose lightweight, breathable clothing that covers your skin to protect against direct sunlight. Our typical gliding hat and sunglasses with UV protection are essential accessories to shield your face and eyes from the sun's intense rays too.
  • As best you can, stay cool and out of the sun pre-launch.  Prepare for your flight in the cooler temperatures of the morning.

In-Flight Strategies:

  • Cockpit Ventilation: Ensure proper ventilation within the glider cockpit. Utilize vents to stay cool.  Adding a cool wet towel around your neck can help too, as when the breeze flows over it, it’ll cool with evaporative advantages.
  • Monitor Body Signals: Pay attention to your body's signals during flight. If you start feeling excessively hot, dizzy, or fatigued, it's crucial to respond promptly. Start (or keep) drinking more water, tell your airborne friends your condition and location, and listen to their advice. Find a safe landing spot, call emergency services or someone on the ground to meet you, then go to hospital.

Post-Flight Care:

  • Rehydration: After landing, prioritize rehydration to replenish fluids lost during the flight. Water and electrolyte-rich beverages help restore the body's balance and prevent dehydration. Cool Down: If you experience any symptoms of heat stroke post-flight, take immediate steps to cool down. Seek shade, use cold compresses, and avoid vigorous physical activity until your body temperature returns to normal. If it’s a severe case, then call emergency services and get yourself to a hospital ASAP.

Continuous Awareness:

  • Weather Monitoring: Stay informed about the weather conditions before and during your flight. High temperatures, combined with low humidity, can increase the risk of heat-related illnesses. Stay flexible with your plans and be prepared to alter your route or landing time if needed.
  • Training and Education: Glider pilots should undergo training on recognizing, preventing, and responding to heat-related illnesses. Understanding the unique challenges of soaring in various weather conditions is essential for maintaining safety in the air. If you’re not a local to the hot area or new to soaring, always ask a local for advice.

Photo by Sean Franke

Adam Woolley  Adam Woolley was born into the gliding world, being the 3rd generation in his family. Going solo at 15, his thirst for efficiency in soaring flight & quest for a world championship title to his name has never wavered. One big passion is sharing his experiences & joy with other glider pilots all around the world. Adam is an airline pilot in Japan on the B767 & spends his off time chasing summer around the globe. He has now won 7 national Championships & represented Australia at 5 WGC's & 1 EGC.