I have the total installed and was wondering if anyone has had experience in setting the pitch in the propeller. I don't seem to be able to maintain 5200 RPM and the engine seems little underpowered at high-altitudes. The pitch is currently set the full maximum and I want to back it off. How much is too much...........
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Prop pitch advice
- Thread starter sdixon
- Start date
Jetguy
Well Known Member
Just a few points
What does this mean, "I have the total installed"?
Any ways adjust your prop to achieve 5000 RPM on the ground at your airport during WOT static runup. WOT means Wide open throttle. That will be a good staring point. Then you may have to fine tune from that point. By the way you didn't say what you field elevation was? Good luck!
What does this mean, "I have the total installed"?
Any ways adjust your prop to achieve 5000 RPM on the ground at your airport during WOT static runup. WOT means Wide open throttle. That will be a good staring point. Then you may have to fine tune from that point. By the way you didn't say what you field elevation was? Good luck!
At the top of the page showing this post, click on the "RV-12" part of this element:
VAF Forums > Model Specific > RV-12
Then on the right near the top, click on "Search this forum."
In the pop-down, type in prop pitch then select GO
Read through the results for highly experienced and detailed help, including pictures, for your answer! Seriously, the detailed info is all there, built up over much time and experience, much more comprehensive than how people could possibly provide by replying to a new post asking about the same topic.
VAF Forums > Model Specific > RV-12
Then on the right near the top, click on "Search this forum."
In the pop-down, type in prop pitch then select GO
Read through the results for highly experienced and detailed help, including pictures, for your answer! Seriously, the detailed info is all there, built up over much time and experience, much more comprehensive than how people could possibly provide by replying to a new post asking about the same topic.
Jetguy
Well Known Member
More Prop Pitch Info
Here is a nice long thread from a few years ago with some good info.
http://www.vansairforce.com/community/showthread.php?t=59682&highlight=prop+pitch
Here is a nice long thread from a few years ago with some good info.
http://www.vansairforce.com/community/showthread.php?t=59682&highlight=prop+pitch
Steve, the best advice I can give you is to fabricate the jig in Jetguy's post (made by Tony T.) and get a digital protractor. Take good notes on your prop rpm and blade angles. Some guys are using 5000 static and some as low as 4900. I have tried them both and settled for 4950. You don't want to lug the Rotax with low rpm to get more speed.
http://www.harborfreight.com/digital-angle-gauge-95998.html
The protractor listed above has also worked very well.
http://www.harborfreight.com/digital-angle-gauge-95998.html
The protractor listed above has also worked very well.
