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HelicopterMain Discussion › Average TR pitch at hover? & OS32 max pitch in climb?
03-10-2006 04:52 AM  11 years agoPost 1
dustyattic

rrApprentice

Castle, Oklahoma

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I'm making the final radio and linkage setup on a Century Hawk Pro. I have 2 things here that experience would make easier than trial and error. Heres my questions:

1. I am using a JR piezo gyro set to rate mode. Since I am not using heading hold, it's best to set up Revo Mix, correct? Or should I inhibit or set to 0% and let the gyro hold it. I'm under the impression that with proper revo mix, the gyro won't be as "busy" making corrections. It seems to me that no revomix could be accurate in all collective settings and conditions, and they gyro is pretty much full on busy all the time anyway. So, use Revo Mix or not? AND.. IF SO, approximately how much pitch should I be seeing on the tail rotor blades at idle, hover, and full throttle. Sitting on the bench that is, without gyro input.

2. I am using stock wood blades, OS32- 15% nitro. I am currently set up on collective at about +10 / -10 in stunt and +10 / -2 in normal mode. I was wondering if that seems about right or is it a bit much for the 32? Whats the max pitch that little motor can handle?

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03-10-2006 05:37 AM  11 years agoPost 2
SteveH

rrProfessor

Texas

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I would guess the .32 won't pull 10 degrees. More like 8, but it might pull 9.

On the tail, without a heading hold gyro, yes use the tail mix. A good rule of thumb, looking from the back of the heli, at half stick hover, the tail rotor blade when at the top of the arc, should be able to sight down the blade at the flybar paddle on the right with the main blades parrallel to the tail boom. That should give you a good starting point for tail pitch. Set your mix so when you give throttle above that point, the tail pitch increases, lower throttle and the tail pitch decreases.

The government cannot give you anything without first taking it from someone else.

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03-10-2006 09:12 PM  11 years agoPost 3
helichulo

rrApprentice

Queens, New York

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If you are a newbie you should not go higher than +9 degrees pitch on the stick, your pitch should be -3 at the bottom of the stick, +5 on the middle and +9 on top. That is a good starting point for a beginner. If you are using a Non-Heading Hold Gyro you must set up the Revo_mix. If you are using a HH Gyro you take it off completely. The geometry on the tail should look like this when the tail servo is in the middle (That is> no input): the tail linkage should be at a 90 deg. angle to the boom. When you hover the helicopter in normal mode (Which is all you should be using) the model should not drift either left nor right, if it drifts adjust the tail linkage or even use the trim on the radio if it's non HH, if it's HH then adjust the linkage only and leave the trim alone. I hope you understand and that it makes sense to you.

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03-11-2006 01:09 AM  11 years agoPost 4
dustyattic

rrApprentice

Castle, Oklahoma

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Yes helichulo I understand. As far as collective pitch goes I was mostly wondering how much this little motor would handle. Seems everyone around me is flying a hopped up Raptor 50 or better so I can't use thier pitch settings as a standard.

SteveH, I appreciate the tail pitch tip, and will also set collective for +/- 9 degrees and see if it will swing it well. Many thanks.

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HelicopterMain Discussion › Average TR pitch at hover? & OS32 max pitch in climb?
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