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Tach Calibration

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John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Sat May 12, 2007 4:30 pm Post subject: Tach Calibration

Hi Gang:



Did not take time to calibrate the old tach after installing the new 

912ULS.  Got her dialed in and flew to Lakeland and back.   18.0 hours 

on the new engine today.  Did a tack calibration and was surprised 

that it was off by about 300 rpm.  I thought I was turning 5,400 

static, but was actually turning 5,700.  Like flying with a 5 speed 

and cruising in 4th.  We'll take care of that little problem tomorrow. 

Should be able to pull another 1.5 degrees of pitch into the prop. 

Ought to do wonders for my cruise speed and fuel burn.  We shall see 

what happens during the flight West.  Nothing sorts out an airplane 

and pilot than spending  two, three, four weeks in the cockpit and 

flying a hundred hours or so.  If there is something you want to find 

out about the system, you will find out on a cross country like that.



Two days and counting,



john h

mkIII

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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

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