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  #11  
Old 11-04-2018, 09:39 AM
gasman gasman is offline
 
Join Date: Mar 2007
Location: Sonoma County
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There is an app for that...... A good one is Clinometer + bubble level by plaincode.
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  #12  
Old 11-04-2018, 10:04 AM
larosta larosta is offline
 
Join Date: Dec 2010
Location: Redlands, CA
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You may need to check the calibration of your bubble level. A web search for “how to calibrate a spirit level” should return several written and video procedures. If your level is out of calibration and Unless your level is a expensive engineers machinists level you will probably just want to replace it.

-larosta
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  #13  
Old 11-04-2018, 12:37 PM
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joedallas joedallas is online now
 
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Default Level

Set the level on any close to level surface and mark the location of the level.
Rotate the level 90° in the same location and the bubble should be in the exact location it was in the first test, if it is the level is ok.

A easy test the level hold the level on the wall with the bubble between the lines then draw a line on the wall.
Rotate the level 90° and check the line, if it is not level then draw a new line with one end on the first line.
Level is a line in the center of the distance between the two lines drawn.
A good idea if you are married put a piece of paper or removable tape on the wall first.

Joe Dallas

Quote:
Originally Posted by larosta View Post
You may need to check the calibration of your bubble level. A web search for “how to calibrate a spirit level” should return several written and video procedures. If your level is out of calibration and Unless your level is a expensive engineers machinists level you will probably just want to replace it.

-larosta
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  #14  
Old 11-04-2018, 01:22 PM
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Piper J3 Piper J3 is offline
 
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Originally Posted by joedallas View Post
A good idea if you are married put a piece of paper or removable tape on the wall first.
Excellent...
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  #15  
Old 11-04-2018, 01:27 PM
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tomkk tomkk is offline
 
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Quote:
Originally Posted by AirHound View Post
Hi Tom, Yes. Bubble is off to the right when calibrated/digital reads 0.0. How can that be?
Is the bubble an actual spirit level? My digital level has a bubble but it's just an electronic picture of the digital readout, not a spirit level that's independent of the digital value. If my bubble was different than the digital readout I'd figure it was defective.
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  #16  
Old 11-04-2018, 02:14 PM
rvbuilder2002 rvbuilder2002 is offline
 
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Location: Hubbard Oregon
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Quote:
Originally Posted by AirHound View Post
Hi Tom, Yes. Bubble is off to the right when calibrated/digital reads 0.0. How can that be?
Most digital levels have a calibration function.
If your bubble turns out to be accurate but the digital value is not, perhaps you accidentally recalibrated when it wasn’t actually level.
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  #17  
Old 11-04-2018, 06:23 PM
AirHound AirHound is offline
 
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Location: OFallon IL now, everywhere before
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Quote:
Originally Posted by rvbuilder2002 View Post
Most digital levels have a calibration function.
If your bubble turns out to be accurate but the digital value is not, perhaps you accidentally recalibrated when it wasn’t actually level.
Scott,
I’m fairly confident I have her set at 71.4 w/i .1.

Say, is it possible at 71.4 to get a high MP alert on climb out and it goes away at initial cruise?

Thanks,
Doug
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  #18  
Old 11-04-2018, 08:02 PM
hook hook is offline
 
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Location: Niceville, FL
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Originally Posted by AirHound View Post
Scott,
I’m fairly confident I have her set at 71.4 w/i .1.

Say, is it possible at 71.4 to get a high MP alert on climb out and it goes away at initial cruise?

Thanks,
Doug
The few in our fleet do this regularly.
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  #19  
Old 11-04-2018, 08:50 PM
AirHound AirHound is offline
 
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Location: OFallon IL now, everywhere before
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Default Any info/historical facts on Effects of high MAP an ROTAX 912s

Quote:
Originally Posted by hook View Post
The few in our fleet do this regularly.
With respect to MAP, I know what overboosting an C/S prop’d engine is and what it can lead to rather quickly. Any stories out there about effects on fixed pitched ROTAXs? Any more info out there other than it should be avoided..? If 27.5” is high on the meter, then is there a too high number for short durations like climb out?
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  #20  
Old 11-04-2018, 09:19 PM
DHeal DHeal is online now
 
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See: https://legacy.rotaxowner.com/si_tb_...912-016-r1.pdf

That is ROTAX's Service Letter SL-912-016R1.

Section 3.1.3 pertains to MP and appropriate operating limits.
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Last edited by DHeal : 11-04-2018 at 09:21 PM.
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