In modern drone design and applications, payload capacity, endurance, and stability are undoubtedly key factors determining performance. At ZHT Aero, we emphasize another critical dimension—modularity and lightweight design. Building on the modular philosophy of the KEEL series, heavy payloads can also be handled with ease and efficiency. Modularity enables exceptional performance, allowing users to quickly adjust or replace components to meet varying mission requirements, thereby achieving greater operational efficiency. The KEEL Plus can be deployed by a single person, while the 50-100kg models can be deployed by two people instantly.