Researchers at Polytechnique Montréal have developed a novel parachute made from a plastic sheet etched with a closed-loop kirigami pattern that stabilizes quickly in free fall and avoids the pitching common in traditional designs. The concept merges simplicity with performance: when the weight is attached to the center, the cut sheet morphs into an inverted bell shape, and the parachute follows a strict ballistic descent regardless of its release angle, tells Tech Xplore.
One of the main advantages of this design is consistency. The team notes that the parachute never wobbles or swings, even when released at odd orientations. That reliability could prove crucial when delivering supplies in volatile environments. Another strength is cost: the structure is seamless and attaches via a single suspension line, keeping manufacturing and deployment simple. A laser cutting technique is used, though more basic die-cutting processes could suffice, helping with scalability and accessibility.
The researchers validated their design through simulations, wind-tunnel experiments, lab drops, and outdoor trials from drones. The results indicate strong potential, even if the size scales up. For now, the team envisions immediate use in humanitarian missions: aerial drops of food, medicine, or water to remote or disaster-struck regions. The low cost, compact setup, and stable descent make it ideal for such deployments.
Looking forward, the authors want to push the concept further: developing patterns that let the parachutes spiral, glide, or vary descent profiles based on payload type. They also hint at applications beyond Earth, such as planetfall deliveries on Mars, where a lightweight, robust, and predictable parachute could be a game changer.
Kirigami-inspired parachutes offer a fresh approach: elegant in design, reliable in flight, and promising for use where traditional parachutes struggle.