WingtraRAY Heavy-Flyer Add-On The WingtraRAY Heavy-Flyer Add-On is a comprehensive extended-flight field operations kit designed for large surveying, mapping, and inspection projects that require multiple flights in a single day. Built for maximum uptime and operational efficiency, this portable hard-case bundle provides the power, spare parts, and field accessories needed to keep missions running continuously in demanding environments. Designed for uninterrupted all-day operation, the Heavy-Flyer Add-On includes three additional sets of flight batteries , field charging equipment with car battery connection capability, two SD cards, one anemometer, three pairs of propellers, two landing gear fins, one tail bumper, one winglet pair and a screwdriver for drivetrain and parachute replacement. Key Features • Includes 3 extra battery sets for extended multi-flight operations • Complete field charging equipment with vehicle battery connection support • Supplied with essential spare propellers, landing gear fins, and maintenance tools • Rugged all-in-one hard case for organized transport and deployment