[Claude Parent]

For those familiar with the MicroVib II balancer system, Please have a look at the screen shot showing a solution for the lateral lead lag adjustment and explain how this solution would be applied. I have an idea of what needs to be done but I would like to confirm with people familiar with this system.

[Jared Hartzell]

I'm not familiar with the Microvib balancer but they're functionally all the same on the user-end. If your accelerometer is mounted the same way as the Dynavibe instructions and you're getting .18 ips @ 270 then you should try to remove ~.3 grams from the master blade tip weight (or add ~.3g to the slave) to see if you can get the hover a bit smoother. Though, under .2 ips is generally acceptable to move toward cruise flight adjustments. 

However, if your accelerometer is setup differently because the application notes are different with the Microvib (I don't know), then you would need to use the polar charts produced with those instructions. But, you can always experiment to reduce the ips—it looks like your lead/lag is good at the moment... If you have rotorway-specific instructions and/or polar charts for the Microvib II, feel free to send me a copy and I'll upload them to the documents page as well.

Rotorway Polar charts and instructions for the Dynavibe here for download.

[Homer Bell]

Agree, IF SENSORS ARE MOUNTED THE SAME. Which would be light over the cabin and transducer on passenger side positioned laterally

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My chart says .5 gram actually at .2 ips

[Claude Parent]

Yes, the sensors are mounted in the same position as per Rotorway pictures. I agree with Homer's comment about the weight, I do have the Rotorway polar charts and looked at the the suggested solution of .5g by plotting the .180 in/s @ 269.6, what I am confused about is the difference between the polar chart and the system solution of "maybe"??? lagging the master blade by .090!
looking at the Rotorway polar chart, there is no solution that requires a change of lead/lag when the imbalance is at 90 or 270 degrees and in my case 269.6 .
I am using a Rotorway group file in the balancer however, I did not enter the variables in that group file. I was hoping someone with this DSS system experience could walk me through some of the settings and details on how to decipher and apply the suggested solutions. 

I was reading through the Rotorway Notes on balancing again and I will go back to the start by doing a new Lead/Lag and static balancing adjustment as per the notes and take another balancer reading and see how it compares with my last results.

[Jared Hartzell]

Yes, .4 to .5 is closer to what the chart represents. I just prefer to interpolate into smaller increments when I make adjustments. I also take multiple readings and average them out before I make adjustments as well but it's not completely necessary. Your balancer is indicating an adjustment of .09 "thousandths" which is actually .00009 if that's reading out right. I wouldn't mess with lead/lag, unless you have to later on.

[Homer Bell]

I agree, would not touch L/L if your @.2 now @270. Static L/L is only a ball park adjustment to get you close. Your already close, very fine adjustments from here, track and weight.