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  • #16
    Kprip

    To get to your original problem, it sounds like the gyro needs to be reversed. With the CSM180, all you do is literally turn it upside down. It's not a bad gyro and is your basic normal mode unit. For learning to hover, it will be fine and even for basic circuits it will also suffice. You will have to learn to drive the rudder as the gyro will only compensate for the rotor torque, but not wind effect. This is the difference between a normal and heading hold gyro such as the Futaba 401. A heading hold gyro will keep the model pointed where you want it to regardless of the wind direction.

    Stick with the CSM 180 and once you're comfortable with handling the model, then look at upgrading to a HH unit. The 401 is a good gyro, but don't discount the CSM gyros. I've got a CSM400 in my MD500 and a 560SL in my standard R60 and have had no problems with either unit.

    Contact the BMFA regarding a club in your area.

    That's my penny's worth
    Ant
    Pilot of scale earth repelling objects

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    • #17
      thanks for the info antsis
      that has helped me tons the csm 180 is upside down on the heli(writing that is)just by turning it around will solve the problem,does anything else need turning after i have turned the gyro around.also with a better csm gyro's i take it i don't need to mess with the receiver as its tuned the csm gyro's anyway.
      regards
      kprip

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      • #18
        First thing to do before starting the heli is to check the rudder direction. the rudder servo is connected to the gyro which in turn is plugged into CH4 on the receiver. Unplug the gyro and plug the rudder servo into the receiver. CSM recommend setting about 8 degrees of right rudder with the stick at neutral. Looking at the heli from the tail, see which way the leading edge of the bottom tail blade is angled. It should be angled to the left. Move the rudder stick and check that the tail blades are moving in the correct direction. If not it can be reversed in the transmitter. I suspect this would have been done when the model was built ,but it's a good idea to check it anyway.

        Once you're happy, the rudder is going in the right direction, reconnect the rudder to the gyro and the gyro to the receiver. Switch on and grab the model by one of the main blade grips. Quickly rotate the model to the left and watch which way the rudder servo moves. if it goes right, then the gyro is in the correct orientation. Once you have the model started and in the hover, it might be necessary to adjust the gyro gain depending on whether the heli slowly rotates to the left or you get tail wag.

        If you are trying this on your own and are not fully confident, I strongly suggest you find a nearby club that might have an experienced heli pilot to check your model out.
        Ant
        Pilot of scale earth repelling objects

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        • #19
          thats gone right over my head (lol)
          i'll join a club,ive printed your reply so i can learn from it.
          many thanks pal
          kprip

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