DJI E800 Tuned Propulsion System
DJI has released E800 Tuned Propulsion Systems for multirotors. These advanced motor packages represent the latest generation of propulsion systems and have been fine-tuned to deliver excellent performance for a range of platforms
The DJI E800 Tuned Propulsion System for Quadcopters provides an all in one solution for the quadcopter builder. The DJI E800 system delivers greater aerodynamic efficiency and a higher thrust-to-weight ratio from the 1345 propellers, while increasing the reliability, stability and agility of a quadcopter system. The E800 system is compatible with all 550 sizes multi-rotor quadcopter platforms and above. The E800 kit is suppled with the 620S's ESC's which are 20 Amp rated, these ESC's have an efficient and quick response algorithm allowing for extra maneuverability and stability in windy conditions or in a rapid descent. The 620S ecs's have an EMF sheilding on the power cables, which means that the EMF is reduced through the use of coaxial-cable power cable to the ESC's. The reduction in EMF gives a better environment on the airframe for the systems to function.
The DJI 620S ESC's are the most advanced ESC in multirotor industry today because they use a much more efficient sine wave driver which has replaced the traditional square wave driver found in other ESC’s. The addition of a high performance MCU and extra bus communication allows the 620S ESC’s to control the motor in a “closed loop”, while monitoring the health and condition of the system in real time with DJI's "Smart ESC interface". The 620S ESC’s have an anti-spark circuit that is used to protect the circuit and the connectors during removal and connection of power to the ESC. The 620S's also have an active braking and energy recovery system that allow for additional manoeuvrability; this also helps to save precious battery power at the same time. The 620S ESC's have a built in LED to help with navigation at longer distances and to communicate the ESC status. DJI have added a data port to the ESC which will allow for future firmware updates online.
The 3510 motors found in the E800 Tuned Propulsion System feature the precise single strand winding; this gives the motors an ever higher slot fill factor in the stator. The single strand winding saves space and allows better air circulation in the motor, these factors combine to significantly reduce the motor temperature and increases the maximum thrust and operation time from a motor which has the same size as previous motors in the DJI range.
The E800 kit has the self-tightening propeller design seen on other systems from DJI like the Phantom series, this prevents incorrect installation of propellers and contunually applies pressure to the blades to keep them in place, no more propeller nuts coming off in flight.
The E800 Tuned Propulsion System comes with: