With the DS-77-DIA HST Schubelerlaunches a completely new jet propulsion system. The system is based on a new12-blade axial compressor wheel which is driven by the all new Schubelerelectronic commutated motor.The 120mm axial compressor generates a surpassing compression ratio and cantherefore be integrated much more efficiently in huge jet models than classicducted fans. The rotational speed level is only 28,000rpm at an impressiveexhaust speed of 102m/s and a thrust of 9,7kg. This high thrust impulse istherefore generated by a high exhaust speed and a high inner efficiency of theaxial fan stage. In figures that mean you can integrate this fan in jets up to11kg and an exhaust diameter of just 99mm. The design of the 12-blade axialcompressor wheel is based on speed ratios which are similar to the ratios of afull scale turbofan. That results besides a high efficiency in a perfectoptical scale appearance and a sound which can only be compared to full scalejet engines. A silent whispering and fizzling of the axial compressor at idlerpm is predominated by an impressive Jetstream noise coming from the exhaust atfull throttle.

Technical data:
DS-77-DIA HST with DSM6730-650

• Inner shroud diameter: 120mm
• Fan swept area: 77cm²
• Weight incl. motor, wires, connectors and secure Fan Fix: 1070g /2lbs. 6oz.
• Thrust range: 57-78N
• Exhaust speed range: 78-90m/s
• RPM range: 21.500-25.500rpm
• Input power: 3,5-5,3kW
• Allowed battery: 11-13S 6000mAh

Overall efficiency: 65-68%