DRS-25 parachute recovery product

The DRS-25 is a parachute recovery system for multirotor drones from Drone Rescue Systems, designed to bring an aircraft or payload down at a controlled descent rate after a failure in flight. The maker's page for the 25 kg class (listed as DRS-25R V2, marketed under the SkyGuard name) describes a compact drone parachute that is fitted to the airframe and triggered either by the flight controller or by the remote pilot.

The system is sized by take-off mass. The listed weight range is 15 kg to 25 kg MTOW, which places it in the class of heavy multirotors used for inspection, mapping, cargo and camera work. Drone Rescue Systems offers a family of standard parachutes that are usable on most commercial multicopters, alongside custom parachutes tailored to specific manufacturers and add-on products such as geofencing, a flight termination system and a manual triggering device, so the DRS-25 belongs to a modular range rather than a single fixed package.

The key figures describe what the system adds to the aircraft and what it achieves in use. The complete system weighs about 650 g, so it takes a small share of the payload budget on a 15 kg to 25 kg vehicle. Its housing measures 280 mm in height and 100 mm in diameter, which determines where on the airframe it can be mounted. Deployment takes place within 35 m to 45 m, a figure that tells the integrator how much height the aircraft needs for the canopy to open. The descent velocity is about 3.0 m/s at 15 kg and 4.5 m/s at 25 kg, and the impact energy is about 68 J at 15 kg and about 253 J at 25 kg; these values show how the touchdown loads rise across the mass range and are the starting point for a ground-risk assessment.

For integration, the interface options are MAVLink, PWM or a custom interface. MAVLink lets the parachute be released by a compatible flight controller on a fault condition, while a PWM output provides a simple trigger line for controllers without a MAVLink channel. Optional equipment includes geofencing and an RC trigger (the manual triggering device), which allow release at the boundary of an approved area or by the pilot on a spare radio channel.

On standards, the maker states that the system is eligible for testing according to ASTM F3322 and to EASA MOC-2511 and MOC-2512.

Typical applications are recovery of heavy multirotors flying over people, roads and infrastructure, risk mitigation for operations that require an emergency recovery measure in the approval process, and parachute-equipped cargo or survey drones.