The combination of slow flight and small size has never been realized in an R/C airplane like this! Tsuyoshi Hamazaki

WEB:
I can't believe you managed to squeeze 2 servos, receiver and an amp in that space!


Hamazaki:
Finding the smallest design for each part and combining components into a single unit was the key. Also, the shape of the servo meant the servo horn had to be made large so there was enough travel for the main wing (control angle). But doing that made it too large so we developed a sliding horn that maintained the amount of movement close to the end point of the control angle.

The sliding horn delivers plenty of stroke and great control response. We did it all in a lightweight one-piece unit.
 
■Size has been mastered. Scale detail of the Centurion

WEB:
What does the 6mm motor have in common with a mobile phone?


Hamazaki:
It's the same motor used to generate the vibrating ring in a mobile phone. Its light but generates a good amount of torque (pardon the pun) and it is very efficient when it comes to power consumption. Add a gear reduction unit to drive the 95mm propeller. At first we went with a higher geared 2.5:1 ratio and a smaller propeller, but it couldn't produce the slow flight we were looking for. Through trial and error we found the optimal gear ratio and propeller size we have now. The servos also use an even smaller version of the same motor.

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