The YANGDA Sky Whale Professional Long-Endurance VTOL Drone is a heavy-lift, long-endurance electric VTOL drone designed for demanding missions, including LiDAR mapping, cargo delivery, and surveillance. It combines quadcopter-style vertical takeoff with fixed-wing efficiency, offering versatility and reliability in diverse environments. It is engineered to handle both heavy payloads and extended flight times. With its hybrid design of four lift motors and one fixed-wing motor, it ascends vertically like a quadcopter and transitions smoothly into horizontal flight. Its endurance is impressive: it can fly for 3.5 hours carrying 2 kg, 2 hours with 6 kg, and 90 minutes with 10 kg payloads. This makes it suitable for applications ranging from long-distance cargo transport to precision mapping and coastline patrols. Ease of use is a core feature. Thanks to quick-detach technology, the drone can be assembled or disassembled in just three minutes by a single operator. Its quick-release cargo bay allows rapid switching between payloads such as cameras, LiDAR units, or medical supplies. The Sky Whale is also weatherproof (IP54 rated), enabling missions in rainy conditions, and it withstands winds up to 13 m/s, ensuring stability in challenging environments. Additional features include battery hot-swapping, DGPS for compass-free calibration, and optional modules like satcom connectivity, ADS-B integration, and parachute recovery systems. Operators benefit from beginner-friendly ground control software, aviation lights for night missions, and intelligent battery management for safety and efficiency. The Sky Whale stands out as a versatile airborne platform capable of supporting mapping, rescue, surveillance, and delivery operations with industrial-grade reliability.