REFLECTOR: IVO prop Motor Current

Brian Michalk michalk at awpi.com
Thu Feb 20 16:51:21 CST 2014


One other thing.

You'll need to make sure the acme threads that the spool runs on are 
clean and well lubricated.  Me and Mike Deeter both have experienced a 
failure of the prop to move to full fine or full coarse because of dirty 
threads.  This will throw off your calibrated current measurement.

On 2/20/2014 4:39 PM, Hiroo Umeno wrote:
> For IVO prop owners out there...
> Do any of you have data on the current draw by the prop pitch adjust 
> motor?  The way it is set up, when the prop is at either end of 
> travel, the motor bottoms out and pops the CB.  I would like to 
> incorporate a little more intelligent control into my version 3 
> electrical annunciator and distributor panel such that it will sense 
> the rising current draw to determine the end of travel before the CB 
> pops.  Additionally, I can use the input from p-lead to determine 
> engine RPM and run the prop more like a CS prop.  The processor for 
> the annunciator panel has a plenty of processing power to handle extra 
> bits like this.
> Hiroo
>
>
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