Here's the deal.....I took out my caliber 30 today to begin my hover training. I moved the throttle about half stick and once the blades got up to speed the tail just started spinning in one direction. So I thought I might have the rudder servo backwards. Switched it, no changes, still takes full opposite tail (rudder) input to keep the heli centered. I called the guys at heliproz about a week ago to make sure everything was setup right. Something didnt make since to me but I did it the way they told me to. Here is what I think it is. With the nose pointing to the left and tail on my right, the main blades spin Clockwise, and tail rotors spin counter clockwise correct? Could maybe this be backwards? They told me that the leading edge of the tail rotor was facing down (with the tail rotor spinning the opposite direction) I said how is it a leading edge if it faces and spins the other way. They said they knew what they were doing so I did it. Could this be it. Thanks for your help......Feel free to email me....

Mike

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It doesn't matter which direction the tail rotor spins as long as it's spinning so that the 'fan' is blowing 'out' (not against the boom)

Lookin down on the heli the mains spin clockwise. With the nose to the left, the tail to the right and the boom between you and the tailrotor the tail blades should spin clockwise. Or, the tail blade down low will move up and forward. Left rudder input at the tx should move the control arm on the tail gearbox to the rear.
I hope this makes sense.
basmntdweller

Ok, what would make the tail of the Heli spin in one direction? It takes full opposite rudder to keep the thing straight. What could this be?

Thanks

Mike

You need to look closely at the manual and make sure the tail setup is as shown. Make sure the tail blades are mounted correctly and that the tail belt is turned correctly. The tail blades should turn in the direction so the blades closest to themain mast is turning up into the main rotor. This will not fix your porblem but may help. Did you check the reversing of the gyro? Both the rudder servo and the gyro have reversing and need to be correct. The C30 tail is easy to setup, just make sure the servo is centered with no sub trim and no rudder trim on the radio. Place the rudder horn on at 90 deg to the servo body. Adust the rod of the servo mount so the tail pitch slider is in the center of its through which is the same as the arm at 90 deg to the boom. What type of gyro are you using?

Either the gyro is reversed or the servo is reversed. If you are holding full control one direction and it will hold somewhat steady, I would guess that the gyro is reversed. If you check and be sure that everything is like I said in my previous post, about the only thing left is the gyro being reversed. If you have built the heli and mounted all the gear per the instructions, the gyro should be reversed and the rudder setting in the tx should be set to normal(not reversed). Also, neutral on the tail rotor control arm should be square to the boom.
basmntdweller

I have a Futaba 401 Gyro. Ok I went and set the tail back per the instructions. Here is something I noticed, With the rudder servo at 90 degrees to the tail boom, the slider on the tail rotor is centered but there is pitch on the tail rotor which would make it spin in one direction. Correct? If the tail servo is centered should the tail slider be centered with no pitch? It seems as if I have no left control of the rudder. Off the subject, if I need to level out the swashplate at low stick do I do this with subtrim? My swashplate is the slightest bit to the left and a little forward. I know this dosent affect my rudder problem, just another Question. Thanks for the replies. I will not be able to mess with the heli for a few days, I will try it again next weekend. Thanks

Mike

The tail rotor does need to have some pitch to counter the 5 deg of pitch in the main blades during hover. You should lengthen or shorten the rod or move the servo to get both the servo horn and the pitch lever 90 deg to the boom when the sub trim and regular trim are 0. Yes use subtrim to center the servo horns so they are 90 deg when at 0 pitch. With the C30 non adjustable rods there is not much you can do to level the swashplate however when the servos are at 90 the bell cranks should be at 90 and the swashplate should be level. A slight bit of right is needed to counter the p factor of the head.