Author Topic: Does everyone use the Prather pitch gauge? (Read 512 times)

Steve Fitton · « **on:** April 14, 2011, 06:39:21 PM »

I'm guessing everybody does, but it seems awfully difficult to use and certainly not accurate to be reporting pitch to the certainty that seems to be required to accurately use setup data posted by people. Frankly, I don't see how a number like 3.75 is even remotely accurate. And, no, my vision is just fine.

Is there a better way?

Dave Adamisin · « **Reply #1 on:** April 14, 2011, 08:08:01 PM »

I even made a pusher scale by scanning the scale as is and flipping it around printing it out and gluing it to the back side of the scale plate. Then I just bolt it on backwards. The numbers are all backwards but it works great. I also had Big make a longer "t" block to make it more stabil. I mis My Hooptee gage (John Kilsdonk). I actually produced those for John, so he gave me one. I think it's at Big's house. I was working on reverse engineering at Ford. I had a couple props scanned and was going to try to use the scans to get more accurate numbers but I retired and lost my scanner......

Bill Little · « **Reply #2 on:** April 15, 2011, 12:11:49 AM »

HI Steve,

Don't know about everyone, and I sure ain't no expert, nor any engineering experience, but we have been using the Prather since the early '90s. I don't know about "everyone", but a better guide (available from Randy) does help, and I always use it upside down. Turning it over just makes it easier for me to read when holding it up to the light...... You can get very repeatable readings from prop to prop even if they do not match someone else's readings.

Bill

Author Topic: Does everyone use the Prather pitch gauge? (Read 512 times)

Steve Fitton

Does everyone use the Prather pitch gauge?

Dave Adamisin

Re: Does everyone use the Prather pitch gauge?

Bill Little

Re: Does everyone use the Prather pitch gauge?