Schubeler DS-51-DIA HST w/ DSM4341-1050 CCW

Description

Special Order the Schubeler DS-51 HST EDF with unparalleled performance and craftsmanship.  By purchasing this edf, please allow an estimated 5 weeks for delivery.  The edf units are custom-made per order at the factory and tested.

With the DS-51-DIA HST Schubeler launches a completely new jet propulsion system. The system is based on a new 12-blade axial compressor wheel which is driven by the all-new Schubeler electronic commutated motor.

The 90mm axial compressor generates a surpassing compression ratio and can therefore be integrated much more efficiently in huge jet models than classic ducted fans. The rotational speed level is only 28,000 rpm at an impressive exhaust speed of 93-111m/s and a thrust of 53-70N. This high thrust impulse is therefore generated by a high exhaust speed and a high inner efficiency of the axial fan stage. In figures that means you can integrate this fan in jets up to 90mm. The design of the 12-blade axial compressor wheel is based on speed ratios which are similar to the ratios of a full-scale turbofan. That results in high efficiency in a perfect optical scale appearance and a sound that can only be compared to full-scale jet engines. A silent whispering and fizzling of the axial compressor at idle rpm are predominated by an impressive jet stream noise coming from the exhaust at full throttle.

An extraordinary challenge was the development of an electronically commuted DC motor that perfectly fits the axial fan. The 12-blade compressor demands an impressive torque of 2,2Nm at 28,000rpm which can only be generated by a high torque motor of high diameter and shorter length. Consequently, the new DSM4335 Schubeler motor is fully integrated into the axial fan to assign a huge area for the main airflow. In addition to that, the motor is perfectly aligned and balanced.

The motor is cooled and needs no efficiency decreasing internal ventilator. The motor is based on a four-pole design to allow a flexible fit of the motor characteristics to the needs of the axial fan. Nevertheless, the winding sits in a 12-slot stator to increase the torque and to avoid any winding deformation at high temperatures. The magnet is attached to a sheeted magnet holder and reinforced by a bandage made of IMS carbon fiber which allows a high rpm tolerance. The whole motor design was optimized in respect of excessive heat tolerance and of course a high efficiency even at high currents.

The mechanical design of the Schubeler DSM4335 motor is based on established mechanical engineering and distinguishes itself by a shaft mount consisting of a fixed bearing and a prestressed floating bearing. The result is very high durability in combination with a low mechanical soundscape which allows the whispering of the axial fan to predominate even at idle rpm.

The conjunction between the motor and axial fan is made by 4 handmade carbon stators which also guide the 3 motor phases through the UHM carbon sandwich shroud. The conversion of shaft power to stream power is accomplished by 12 handmade carbon rotor blades which sit form-closed in precision aluminum swivels.

BUILDERS NOTE: REFER TO THE “ELECTRIC SETUP GUIDE” ON THE HOME PAGE TO HELP DETERMINE THE PROPER SETUP FOR THE FAN, ESC, MOTOR, AND BATTERY.

DS-51-DIA HST with DSM4341-1050 Technical data:

Inner shroud diameter: 93mm
Fan swept area: 51cm²
Weight incl. motor, wires, connectors
Secure Fan Fix: 640g
Thrust range: 53-76N/ 11-17lbs (Estimated)
Exhaust speed range: 93-111m/s
RPM Range: 28.000-32.000rpm
Input power: 3.5-6.0kW
Allowed battery: 10-12S 6000mAh
Overall efficiency: 70%

Rotor Rotation: Counter Clock-wise (CCW)

Speed Control Settings:

• ESC Needed: 135HV AMP ESC or higher
• Timing should be 12°-18°
• PWM frequency 14kHz.
• Brake off.
• Motor pole count: 4