Rainbow CH-804 Small Long-Range Reconnaissance Drone

The ch-804 is based on the ch-803 uav system, which optimizes the power system and aerodynamic shape to greatly improve the endurance performance. The ch-804 is a short-range vehicle-mounted unmanned aerial vehicle (uav) system with features of easy to use, long flight time and high reliability, which can be used for battalion-level day and night air reconnaissance, air surveillance and counter-terrorism operations. It can also be used in such civil fields as environmental monitoring, aerial surveying and mapping, pipeline patrol, urban security and defense, with international advanced level.

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The CH-804 is a cutting-edge small, long-endurance unmanned aerial vehicle (UAV) system engineered to deliver extended-duration intelligence, surveillance, and reconnaissance (ISR) at the tactical edge. With an exceptional flight endurance of up to 12 hours, a quiet electric propulsion system, and a total system weight under 6 kg, the CH-804 enables dismounted units to maintain continuous situational awareness over critical areas — day or night — without revealing their position.

Featuring a high-aspect-ratio wing design and ultra-efficient aerodynamics, the CH-804 glides silently at low speeds, minimizing acoustic and visual signatures. It is hand-launched or rail-assisted, operates fully autonomously, and lands via GPS-guided parachute or soft belly touch-down, making it ideal for operations in rugged terrain, urban canyons, or dense forest environments.

Powered by high-density lithium-polymer batteries and equipped with a stabilized electro-optical payload, the CH-804 provides real-time HD video streaming over a secure digital datalink, enabling persistent monitoring of enemy movements, border activity, disaster zones, or infrastructure sites.


Key Features

  • Ultra-Long Endurance: Up to 12 hours of continuous flight — among the longest in its class.
  • Low Observable Design: Quiet brushless motor, low RPM propeller, and high-wing configuration reduce noise and visibility.
  • Man-Portable & Rapid Deployment: Entire system fits in a backpack; ready for launch in under 3 minutes.
  • Lightweight & Durable: Total UAV weight: 4.2 kg; constructed from carbon fiber and composite materials.
  • Stabilized EO Payload: HD daylight camera (1080p) with 10x digital zoom on 2-axis gimbal; optional thermal imager (384×288).
  • Secure Digital Datalink: AES-256 encrypted COFDM transmission (C/L-band), anti-jamming, frequency-agile, range up to 50 km LOS.
  • Autonomous Operation: Fully automatic takeoff, waypoint navigation, orbit, return-to-home, and emergency auto-landing.
  • GPS-Denied Navigation: Inertial Navigation System (INS) + Visual Odometry (VO) support for indoor or signal-degraded environments.
  • All-Weather Capability: Operates in light rain and wind up to Beaufort 4 (55 km/h).
  • Operator-Friendly GCS: Rugged handheld tablet or smartphone app with intuitive touchscreen interface and pre-planned mission templates.
  • Multiple Recovery Options: Parachute descent, net capture, or soft ground landing with skid.
  • Swarm-Ready Architecture: Open API supports future integration into coordinated micro-UAV swarms.
  • Low Logistics Footprint: No fuel required; rechargeable battery (2–3 hour charge time); minimal maintenance.

Technical Specifications

Parameter

Specification

System Designation CH-804 Small Long-endurance UAV System
UAV Type Fixed-wing, high-aspect-ratio monoplane
Wingspan 3.2 m
Length 1.6 m
Height 0.45 m
MTOW (Max Takeoff Weight) 4.2 kg
Empty Weight 2.8 kg
Payload Capacity Up to 0.8 kg (internal bay)
Propulsion Electric brushless motor, pusher configuration
Battery High-capacity LiPo (22,000 mAh, 22.2V)
Cruise Speed 60–80 km/h
Max Speed 110 km/h
Stall Speed 45 km/h
Service Ceiling 5,500 m (18,000 ft)
Operating Altitude (AGL) 50 – 5,000 m
Wind Resistance Up to 55 km/h (Beaufort 4)
Flight Endurance 8–12 hours (payload-dependent)
Control Range (LOS) Up to 50 km
Communication Link Dual-band COFDM (C/L-band), frequency-agile
Encryption AES-256
Navigation System GPS/BeiDou + GLONASS + MEMS INS
Autonomous Functions Auto takeoff, waypoint nav, orbit, RTL, auto-land
Launch Method Hand-launched or short rail launcher (optional)
Recovery Method Parachute + soft skid / net capture
Ground Control Station (GCS) Rugged handheld tablet or smartphone app
Crew 1 operator
Power Supply Battery-powered (rechargeable)
Operating Temperature -20°C to +55°C
System Deployment Time < 3 minutes
Transportability Fits in standard military backpack

Operational Roles

  • Close-Range ISR: Persistent surveillance for infantry squads and special forces.
  • Border & Perimeter Monitoring: Long-duration patrol of remote fences, checkpoints, or river crossings.
  • Urban Reconnaissance: Overhead view of buildings, alleys, and rooftops during clearing operations.
  • Disaster Response: Search and rescue coordination, damage assessment after earthquakes or floods.
  • Critical Infrastructure Inspection: Power lines, pipelines, railways, and communication towers.
  • Communication Relay: Temporary UHF/VHF or LTE node extension in mountainous or obstructed areas.
  • Training & Simulation: Low-cost platform for UAV tactics development and crew training.

Support & Export Configuration

The CH-804 is designed for global deployment with minimal logistical burden:

  • Training program (basic flight, maintenance, mission planning)
  • Spare parts kit (propellers, motors, sensors, batteries)
  • Field charging unit (vehicle or solar-compatible)
  • Mission planning software (Android/iOS app + PC version)
  • Optional upgrades: Thermal camera, laser rangefinder, lightweight SAR module
  • Civilian variant available for environmental monitoring, agriculture, and wildlife conservation

Available in:

  • Standard ISR Configuration (EO only)
  • EO/IR Dual-Sensor Version
  • SATCOM Backup Option (for BLOS missions)
  • Swarm Control Kit (manage up to 6 drones simultaneously)

Ideal for nations and agencies seeking a silent, persistent, and soldier-carried ISR asset that delivers unmatched endurance in a compact form factor.

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