Mailing List flyrotary@lancaironline.net Message #67818
From: Stephen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Rotary Compression Tester
Date: Thu, 16 Jan 2025 21:32:48 +0800
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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I used a Micromite to sample a similar automotive  pressure transducer but didn’t calculate rpm which I should have.
I recall at the time checking the response time of the transducer but cant remember my findings.
I plotted the data in Excel to compare with latter tests. I didn’t calibrated the data. Just wanted it for comparison.

Steve Izett
Rotor #1 5 Aug 2016.jpeg

On 16 Jan 2025, at 9:19 pm, Finn Lassen finn.lassen@verizon.net <flyrotary@lancaironline.net> wrote:

Looks similar to the one I made with a spare pressure sensor and Arduino.
<gjd00XfzDt1JsoQU.png>
But after that I just used he prop to pull it through the six compressions.

Looks like I could improve my software to not require crank position sensor.

Finn

On 1/15/2025 10:36 PM, Doug Lomheim rv9flyer13b@gmail.com wrote:
Curious what brand of compression tester you all use on your rotary?  

I found this one and thought I might order it, unless you all know of a better one to buy?

Thx!


Doug 




Image
Rotor #1 5 Aug 2016.jpeg
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