Opale Aero System SARL (Opale Paramodels / Opale Parachutes) Parachute de secours Crossfly 7 m2 (OP17114)

The Crossfly 7 m² (OP17114) from Opale Aero System (France) is a rescue parachute with a cross canopy for drones of 4 to 9 kg total weight. Only the parachute is supplied, in a container of 17 x 17 cm; ejection and release come from a separate system.

The manufacturer's table runs from 3.1 m/s and 33 J at 7 kg to 4.2 m/s and 114 J at 13 kg; at 9 kg, the upper end of the range of use, the sink rate is 3.5 m/s. The parachute weighs 308 g. The figures show how strongly energy grows with mass: 114 J at 13 kg against 33 J at 7 kg, although the sink rate rises only from 3.1 to 4.2 m/s.

The Crossfly brings neither ejection nor release and therefore no minimum deployment altitude of its own; that follows from the interplay with the chosen ejection system. For flights over people or in certain scenarios of the Specific category, evidence to ASTM F3322 or EASA MoC Light-UAS.2511 and 2512 may be required; it applies to the complete combination of parachute, ejection and aircraft, not to the parachute alone. The 308 g count towards take-off weight.

With a parachute alone, care is about the fabric: after use, check canopy and lines for tears, chafing, dirt and moisture, store them protected from UV light and wet, and repack as the manufacturer specifies. The container of 17 x 17 cm has to fit the ejection system. Selection follows mass: above 9 kg the aircraft leaves the intended range, although the table runs to 13 kg.