Dr.Ben rrProfessor Location: Richmond, VA, USA
My Posts This: Topic Forum | Consider the t/r disk. If the disk is horizontal and viewed from the right side of the model, the blade closest to the nose of the model should be advancing into the downwash from the mainrotor. The t/r disk should turn counterclockwise when viewed from the right side of the model.
Now, consider the belt coming off the front pulley before you twist it. The left side leg of the loop (when viewed from overhead with the model's nose facing AWAY from you) should be flipped 1/4 turn clockwise so that the left loop overlays the right leg of the loop. The quarter twist in the manner assures the t/r will rotate CCW when the mainrotor turns CW. Note that in the book the arrow direction showing the pulley as turning CW is as viewed from the BACKSIDE of the pulley/LEFT side of the model.
Of course, as just noted, make sure the relationship pitch the pitch slider and the balls on the pitch arms of the t/r blade grips is correct. When the t/r servo draws the pushrod towards the nose of the model, the pitch in the t/r blades should increase towards the direction of the tail boom.
Ben Minor
Representing MRC Hirobo Helicopters and Team Futaba for Radios Morgan Fuels OS Engines |