Rainbow‑7 stealth drone completes first flight, marks major breakthrough
China's Aerospace Science and Technology Corporation has announced that the Rainbow‑7 high‑altitude, high‑speed stealth drone successfully completed its maiden flight at an airfield in northwest China. This achievement places the country among the few worldwide capable of mastering large flying‑wing stealth UAV technology.
Unlike earlier members of the Rainbow drone family, the Rainbow‑7 adopts a distinctive flying‑wing layout. Its highly integrated wing body features ailerons, flaps, and a zigzag horizontal tail extending from the wingtips to the rear fuselage. This tail, nicknamed the "beaver tail," helps counter turbulence caused by vertical gusts at low altitude and shortens the glide distance required before takeoff.
The drone's aerodynamic design emphasizes stealth. The engine air intake is positioned above the fuselage, while the tail nozzle uses a semi‑hidden design. Combined with a smooth exterior and stealth coating, all access hatches, landing gear covers, and bomb bays have been treated to reduce radar visibility. These measures give the Rainbow‑7 excellent low‑detectability performance.
Performance specifications are impressive. The Rainbow‑7 has a wingspan of 27.3 meters (about 90 feet), a maximum takeoff weight of 8 metric tons (about 17,600 pounds), a cruising speed of Mach 0.5 (subsonic), and a service ceiling of roughly 16,000 meters (52,500 feet). It can remain airborne for up to 16 hours, penetrating deep into hostile air defense systems without detection.
Experts note that the drone's combination of high‑speed penetration and strong stealth capabilities allows it to relay battlefield intelligence to manned aircraft in the rear or to long‑range strike forces. It can also provide target guidance at the front line, making it a versatile platform for modern combat scenarios.
The Rainbow series of drones is developed by the 11th Research Institute of the China Aerospace Science and Technology Corporation (CASC), one of the country's leading aerospace organizations. CASC is a state‑owned enterprise responsible for China's space programs, satellite launches, and advanced aviation projects. Founded in 1999, the corporation has played a central role in both civilian and military aerospace development, and its Rainbow UAV family has become a cornerstone of China's unmanned aerial capabilities.
