Overview
Sentry is a tethered quadcopter system that delivers indefinite flight endurance for persistent overwatch, event security, border monitoring, and tactical operations. Ground-based power supply pushes 600V over a fiber-reinforced micro-tether; flight time is limited only by station power and operator endurance. Designed for incident commanders who need a 100-meter “Mast on Demand” they can deploy from the trunk of a vehicle in under two minutes.
Mission Profile
- Persistent event security (stadiums, parades, public gatherings)
- Border monitoring and critical-infrastructure overwatch
- Long-duration incident command (active scenes, hostage, wildfire)
- Tactical communications relay (combined with GRD-K19)
- Industrial site security
Key Specifications
| Parameter | Value |
|---|---|
| Takeoff weight | 6.8 kg (aircraft only) |
| Diagonal wheelbase | 720 mm |
| Operating altitude (tether) | up to 100 m AGL |
| Max flight time | Indefinite (tethered); 18 min on battery (failsafe) |
| Tether voltage / capacity | 600 VDC, 2.5 kW continuous |
| Max wind resistance | Level 7 (17.1 m/s) |
| Setup time | ≤2 minutes from case |
| Operating temp | -20 °C to 50 °C |
| Ingress rating | IP55 |
Camera & Sensors
- Garudeus Pan-Tilt EO/IR/Zoom payload
- EO: 4K/60fps, 60× optical zoom
- IR: 1280×1024 cooled thermal (MWIR) or 640×512 uncooled (cost-down option)
- Laser rangefinder (eye-safe), digital compass
- Optional radar payload bay (X-band micro-radar, see GRD-G20 docs)
Propulsion
- Brushless 4214 motors, 380 KV, US-wound
- 80A automotive ESCs, US-assembled
- 17” carbon-fiber folding propellers
Flight Controller & Avionics
- Garudeus Atlas-Tac Pro — triple-redundant STM32H753, US-assembled
- Triple-redundant IMU, triple barometer, dual magnetometer
- Multi-band GNSS + SAASM-ready
- AeroLink OS-Defense with auto-station-keep and gust rejection
- Onboard tether-controller microprocessor (US-fab)
Tether System
- 100m fiber-reinforced Kevlar-jacketed micro-tether (5.5mm dia)
- 600 VDC ground PSU, 2.5 kW continuous, auto-retract
- Fiber data path for encrypted video
- AC mains (110/220V) or generator input; 48V DC vehicle option
Communications
- Encrypted fiber-optic data over tether (primary)
- Garudeus AeroLink Defense RF as backup (AES-256)
- 10 km RF range in failsafe / mission-extend mode
Compliance & Certifications
- NDAA Section 848 compliant
- Blue UAS Cleared listing in progress
- FAA Tethered UAS exemption (107.51 altitude waiver pathway)
- FCC Part 15, UL-tested ground PSU
- Assembled in Moreno Valley, California
Operating Envelope
24/7 operation. -20 °C to +50 °C. IP55. Auto-RTH on tether fault. Battery failsafe carries 18 minutes of flight to land safely if tether is cut or PSU loses input.
What’s in the Box
- Sentry aircraft
- Garudeus 600V Ground Power Station (wheeled, rugged case)
- 100m Sentry tether (factory-spooled)
- Garudeus RC-Command operator station with twin 10” displays
- 2× TB85 Smart Batteries (failsafe, hot-swappable)
- Rugged transport cases (3-piece)
- Garudeus Mission Planner — Persistent edition (2 seats)
Available Accessories
- 50m extension tether: $1,999
- Vehicle 48V DC integration kit: $899
- Garudeus Relay payload integration: $1,499
- Cooled MWIR upgrade (1280×1024): $4,999