MKS HBL669 Standard Tail Servo for Roban 6/7/800 Series Helicopters "90mm" 4 GHz Full Range Radio

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Propeller adapter with 5mm shaft

Glycerin-based "exhaust effect" simulates engine exhaust for added realism

Electric retracts and struts are included

MKS HBL669 Standard Tail Servo for Roban 6/7/800 Series Helicopters "90mm" 4 GHz Full Range RadioHBL669 Standard Tail Servo for Roban 6 7 800 Series Helicopters from MKS MKS HBL669 The MKS HBL669 High Voltage Brushless Titanium Gear High Speed Digital Tail Servo is recommended for helicopter tail applications. The HBL line of servos has been designed exclusively for high voltage applications making them a great match with an unregulated 2S LiPo battery pack. In addition, the HBL series of servo's are lightning fast, extremely strong and operate