<h4>Introduction to RHUMI-1: India's First Reusable Hybrid Rocket</h4><p>India recently marked a significant milestone with the launch of <strong>RHUMI-1</strong>, its first <strong>reusable hybrid rocket</strong>. This innovative vehicle was developed by <strong>Space Zone India</strong>, a startup based in <strong>Tamil Nadu</strong>.</p><p>The primary mission of <strong>RHUMI-1</strong> was to gather crucial data for research purposes, specifically focusing on critical environmental issues such as <strong>global warming</strong> and <strong>climate change</strong>.</p><div class='info-box'><p>The launch involved placing the rocket into a <strong>suborbital trajectory</strong>. It was deployed using a <strong>mobile launcher</strong>, showcasing flexibility in operational capabilities.</p></div><h4>Payload: Cube Satellites and Pico Satellites</h4><p><strong>RHUMI-1</strong> carried a diverse payload designed for various research objectives. This included <strong>3 cube satellites</strong> and an additional <strong>50 pico satellites</strong>.</p><ul><li><strong>Cube satellites</strong> are a class of <strong>nano satellites</strong>. They are characterized by their compact size and typically weigh between <strong>1 to 10 kg</strong>.</li><li><strong>Pico satellites</strong> represent an even smaller category of satellites. Their weights generally range from <strong>0.1 to 1 kg</strong>, making them highly cost-effective for specific missions.</li></ul><h4>Key Features of RHUMI-1</h4><p>The design and engineering of <strong>RHUMI-1</strong> incorporate several advanced features aimed at enhancing efficiency, safety, and environmental sustainability.</p><div class='key-point-box'><strong>Hybrid Propulsion System</strong><p><strong>RHUMI-1</strong> utilizes a sophisticated <strong>hybrid propulsion system</strong>. This system ingeniously combines both <strong>solid and liquid propellants</strong>, leading to enhanced operational efficiency and significantly lower costs.</p></div><div class='key-point-box'><strong>Adjustable Launch Angle</strong><p>The rocket's engine is equipped with an advanced mechanism that allows for precise control over its trajectory. It features an <strong>adjustable launch angle</strong>, which can be set anywhere from <strong>0 to 120 degrees</strong>.</p></div><div class='key-point-box'><strong>Electrically Triggered Parachute System</strong><p>For safe recovery of its components, <strong>RHUMI-1</strong> employs an <strong>electrically triggered parachute system</strong>. This advanced and <strong>eco-friendly descent mechanism</strong> ensures that rocket parts can be safely retrieved, offering both economic and environmental advantages.</p></div><div class='key-point-box'><strong>Environmentally Friendly Design</strong><p>A core principle in the development of <strong>RHUMI-1</strong> was its commitment to sustainability. The rocket is entirely free of <strong>pyrotechnics</strong>, including common explosives like <strong>TNT (trinitrotoluene)</strong>, highlighting its dedication to minimizing environmental impact.</p></div><div class='exam-tip-box'><p><strong>UPSC Insight:</strong> Understanding the features of indigenous space technologies like <strong>RHUMI-1</strong> is crucial for <strong>GS-III Science & Technology</strong>. Focus on the 'why' (global warming research) and 'how' (hybrid propulsion, reusability, eco-friendly design).</p></div>