DJI Looking to Win the Race on Drone Racing Propulsion Systems: Brief Review of the DJI Snail Propulsion System
DJI recently unveiled its snail racing propulsion system to the drone racing industry. Designed by its highly meticulous propulsion engineers, the ultra-light weight (27.8g) 2305 motor associated with the Snail propulsion system is said to drive an incredible 1.32kg of thrust (15% higher than current market averages), and top speeds of up to 140 km/h of forward flight speed. Recently, the DRL unveiled its latest Racer 3 racing drone, whose combined propulsion system is said to drive 7.2 kg of thrust. The top speed of the Racer 3 is not known at this moment in time. However, the Racer 3 racing drone is said to reach astonishing speeds of 128 km per hour in under a second. The acceleration speed of DJI's snail racing propulsion system remains unknown at the moment.
Another interesting feature is the time and attention that was dedicated, during wind tunnel tests, to designing and developing an aerodynamic tri-blade propeller with reduced drag and energy consumption and increased forward momentum, rather than the vertical hovering motion normally found in other high speed consumer racing drones, such as the Crusader GT2 200. The extremely compact (3.6 cm) and easily customizable 32-bit high performance 100MHz MCU Snail 430-R electronic speed controller (ESC) with unique drone racing algorithm is said to outperform market averages by 32ms in terms of accelerating, then suddenly decelerating the motor's overall thrust, a feature that is said to significantly increase the racing drone's overall agility while in flight.
DJI the six (6) different propellers associated with the Snail propulsion system each have their own advantages and disadvantages. For instance, the thicker 5048S tri-blade propeller generates maximum thrust and sports a unique quick-release propeller mechanism. For itself, the similar 54038 tri-blade propeller is optimized for standard racing. The dual-blade 5024S offers smoother control. The 6030S is ideal for beginners, the 7027S for aerial imaging, and the 6048 for 3D flight.