The Parachute Recovery Systems (PRS) complies with the MoC for mitigation means M2 published by the EASA. It facilitates the implementation of the Specific Operations Risk Assessment (SORA). The M2 MoC demonstrates that the drone has a feature that reduces its impact energy in the event of a crash.

Dronavia Parachute Recovery Systems (PRS), can be used to approve drones weighing between 2 and 8 kilograms for scenario 3 (S3) of the French Civil Aviation Authority (DGAC). The aim of this requirement is to guarantee the safety of people and property on the ground in the event of a critical problem during flights in urban areas or when flying over people, by limiting the impact on the ground to less than 69 joules.

By combining your Parachute Recovery Systems (PRS) and your Flight Termination Systems (FTS), you can obtain an accessories kit enabling you to classify your drone C5 (for all C3 class drones). This EASA-certified accessories kit allows you to fly in the specific category for the STS-01 scenario.

By combining your Parachute Recovery Systems (PRS) and your Flight Termination Systems (FTS), the drone becomes S1/S2/S3 approved by the DGAC.

From 1 January 2024, a new class of drone, Class C5 (for STS-01 flights) will come into force throughout Europe.

The STS-01 scenario concerns direct-line-of-sight flights at an altitude of 120 metres, whether in a populated or unpopulated environment. This flight scenario is virtually the same as the DGAC’s current S3 scenario.

To be able to fly in this scenario in Europe, you need to obtain a C5 marking for your drone. There are two ways of doing this: either the manufacturer develops his drone to meet the requirements of this class, or the drone operator installs an accessories kit on his C3 class drone (DJI Matrice 350 / DJI Inspire 3 ), enabling his drone to be certified as C5 class.

Dronavia is proud to be the first manufacturer to offer accessories kits (consisting of a parachute recovery system (PRS) and a flight termination system (FTS)) compliant EASA regulation, enabling your drone to obtain the C5 class label.

To obtain Class C5 marking for your DJI Matrice 350 and DJI Inspire 3 drone, simply install the accessories kit (PRS & FTS) offered by Dronavia. If you decide you want to revert to the original C3 drone branding, simply remove the accessories kit (PRS & FTS).

To obtain a class C5 marking for your DJI Mavic 3 Enteprise (3E / 3T / 3M) drone, it’s not a question of the operator installing an accessory kit directly, but of a conversion from C2 to C5.

To carry out this conversion, the DJI Mavic 3 drone must pass through our workshop so that our experts can install an internet FTS and PRS.

So, fitted with our PRS and FTS (PRS-FTS-MOC Kronos AD Mavic 3) kit, the DJI Mavic 3E becomes a Kronos AD Mavic 3E and the DJI Mavic 3T a Kronos AD Mavic 3T.

In order to achieve C5 compliance, we started from scratch and checked all the requirements for class C5 for the drone + PRS + FTS package (unlike a kit, for which you only need to check the requirements for the kit alone).

You retain your DJI warranty, simply dismantle the FTS + PRS assembly before sending it in for warranty.

You retain your DJI warranty, simply dismantle the FTS + PRS assembly before sending it in for warranty.

EASA has published a new proposed means of compliance for systems installed on drones to reduce ground impact in the event of a crash. The document is aimed at drone operators who are considering fitting a drone with a parachute or demonstrating that the drone has a feature that reduces its impact energy in the event of a crash. The document is also intended for drone manufacturers and manufacturers of mitigation systems (parachute recovery systems).

The MOC M2 designates the level of robustness required for the safety system in the event of the drone losing control and falling to the ground.

The three key elements of an effective M2 mitigation system are:

• Reduce the effect of ground impact
• Operate reliably in the event of loss of control
• Not introduce any additional risk

UAV manufacturers must declare that they meet these three requirements and provide evidence, in the form of tests, analyses, simulations, inspections, design reviews or operational experience to support these declarations.

Mitigation measures are divided into three stages:

M1 – Strategic mitigation: this stage involves implementing strategies to reduce risks at source. For example, by choosing flight routes that avoid high-risk areas or by using technologies that reduce the risk of accidents.

M2 – Reducing the effects in the event of an impact: this stage aims to minimise the consequences of an accident should it occur. For example, by using containment devices to protect people and property on the ground or by implementing evacuation plans in the event of an accident.

M3 – Emergency plan: this stage involves putting in place protocols to manage the consequences of an accident and ensure the safety of people and property on the ground. For example, by providing emergency communications or establishing working relationships with the local authorities and emergency services.

Each of these steps has a correction value that can reduce or increase the GRC depending on the robustness of the measures put in place. The more effective the measures, the higher the correction value and the lower the GRC. If the final GRC is greater than 7, it is not possible to request a SORA.

Dronavia uses a patented CO2 ejection system for its parachute systems. This ejection system has been tried and tested and used by the majority of French drone operators for over 6 years. Numerous tests and successive improvements have taken this system to levels of reliability never before achieved in a drone parachute recovery systems.

A pressurized gas (60 bars) is released in a fraction of a second to propel the parachute canopy out of its container. The excess gas released (each cartridge contains several litres) is used to accelerate the deployment of the canopy and minimise the loss of altitude when the parachute is triggered.

Dronavia parachutes are designed to be easily integrated, with an installation time of around 5 to 10 minutes (for the first installation) and then only a few seconds. Dronavia provides a user manual and tutorial videos to help drone operators carry out the installation simply and quickly.

Our systems have been designed and developed to be easily transportable and allow drone operators to take off quickly.

Dronavia sells Flight Termination Systems (FTS) with its Parachute Recovery Systems, enabling the engines to be switched off in less than a second. The two systems are paired and coupled in the workshop. If the FTS is triggered, the PRS is triggered automatically and conversely.

Dronavia rescue parachute systems are equipped with an independent 5-hour battery that can be recharged via USB-C. Dronavia also supplies a USB-C cable (connectable to the drone or the Flight Termination Systems) to give the parachute unlimited autonomy.

There are no constraints for drone operators travelling by plane. Most airlines offer the possibility to put your parachute system in the hold or in the cabin with the gas cartridge (16G / 12G / 8G / 4G)

There are two types of maintenance: preventive or post-trigger, but the only operation required on Kronos parachute systems is the replacement of the POD. This is a quick and easy operation, which means that the drone operator never has to bring his drone to a standstill.

An expiry date is indicated on each POD. Dronavia declines all responsibility and cancels the guarantee of your system if your POD has passed this expiry date. 

In both cases, you can either buy a new POD or exchange your POD for a new one at a special price.

Replacing your CO2 cartridge, rearming your parachute, checking the firing pin and spring on your parachute, repacking your canopy… are all operations that can be complex or dangerous.

We recommend that you opt for the manufacturer’s maintenance service offered by Dronavia. If you choose to do it yourself, Dronavia will not accept responsibility for the system and will void the warranty if you decide to reset the system yourself.

Send us your Zephyr parachute systems and our experts will carry out all maintenance work with unique know-how. You will receive your system as new, with the warranty intact. Shipping costs are at your expense.

Replacing your CO2 cartridge, rearming your parachute, checking the firing pin and spring on your parachute, repacking your canopy… are all operations that can be complex or dangerous.

We recommend that you opt for the manufacturer’s maintenance service offered by Dronavia. If you choose to do it yourself, Dronavia will not accept responsibility for the system and will void the warranty if you decide to reset the system yourself.

Send us your IDRsys parachute systems and our experts will carry out all maintenance work with unique know-how. You will receive your system as new, with the warranty intact. Shipping costs are at your expense.