SJM 400II Extreme 3D RTF (v2) 72mHz
SJM 400II Extreme 3D RTF (v2) 72mHz
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SJM 400II
The SJM 400II is a purpose built 3D beast of a helicopter. With its unique rotor head design, milled and machined alloy parts and extensive use of carbon fiber, this heli will satisfy even the fussiest of pilots!
PACKAGE CONTENTS:
SJM400II kit x1
25A ESC x1
Lipoly 2200mAh 3S1P 20-30C x1
3800kv Brushless motor x1
9g servo x4
Gyro x1
6 channel remote controller AND receiver (72mHz / Mode 2) x1
KIT:
Kit weight (W/O main blade)F235g
RTF weight: 595g
Main rotor diameter: 655mm
Main rotor specificatio: F305~30mm
Flybar ro: F210~1.5mm
Flybar rod specificatio: F58~30mm
Tail rotor diamete: F110mm
Tail rotor specificatio: F45~18mm
Main shaft diamete: F4mm
Tail rotor shaft diamete: F2mm
Tail boom diameter (outer)11mm
Drive belt specification302MXL, width 2.5mm
Main rotor has changeable screw distance
Adjustable mixing control;
Flybar in ball shape
Direct connected flybar control rod
Revolving swash plate: ccpm120 degree
Tail rotor blade Anti-shake bearing Gearbox
Main drive gear M0.4 180T
Tail drive gear M0.4 36
Speed ratio of main and tail drive gearF1F5
36 race bearings in total
The whole heli is made of alloy, carbon fiber, and fiberglass material. All alloy parts are machined with CNC mills and lathes.
