Mailing List flyrotary@lancaironline.net Message #67819
From: Marc Wiese cardmarc@charter.net <flyrotary@lancaironline.net>
Subject: RE: [FlyRotary] Re: Rotary Compression Tester
Date: Thu, 16 Jan 2025 13:33:22 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>

Just remember to disable your FI system before doing the test………..I have a digital tested that only tests one rotor at a time.

Marc

 

From: Rotary motors in aircraft
Sent: Thursday, January 16, 2025 7:33 AM
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: Rotary Compression Tester

 

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



On 16 Jan 2025, at 9:19pm, 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 

 

 

 

 

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