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  #1  
Old 11-02-2018, 04:24 PM
Stockmanreef Stockmanreef is offline
 
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Default 390 Engine Question

I plan to put dual PMags on the IO 390 with a Hartzell constant speed prop. Is there any issue with this setup from an FAA point of view. A person in the UK indicated that he would not be allowed to use that setup since that particular setup has not been tested over in the UK.

I can change to regulator Mag and a PMag at this point if need be.

Thanks
ken
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  #2  
Old 11-02-2018, 04:56 PM
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DanH DanH is offline
 
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Quote:
Originally Posted by Stockmanreef View Post
I plan to put dual PMags on the IO 390 with a Hartzell constant speed prop. Is there any issue with this setup from an FAA point of view.
There is no FAA issue.
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  #3  
Old 11-02-2018, 05:13 PM
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schristo@mac.com schristo@mac.com is offline
 
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Default That's what I have...

The P-mags have seasoned well and are a mature product at this point.
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  #4  
Old 11-02-2018, 05:32 PM
Chris Cooper Chris Cooper is offline
 
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Hartzell say they havenít tested with electronic ignition. Iím guessing they donít mean p-mags?
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  #5  
Old 11-02-2018, 05:48 PM
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DanH DanH is offline
 
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Originally Posted by Chris Cooper View Post
Hartzell say they havenít tested with electronic ignition. Iím guessing they donít mean p-mags?
They most definitely mean p-mags.
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  #6  
Old 11-02-2018, 06:06 PM
Chris Cooper Chris Cooper is offline
 
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  #7  
Old 11-02-2018, 06:33 PM
Stockmanreef Stockmanreef is offline
 
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should I post this on the general forums to get a broader audience to chime in?
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  #8  
Old 11-02-2018, 06:53 PM
Kyle Boatright Kyle Boatright is offline
 
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Quote:
Originally Posted by Stockmanreef View Post
should I post this on the general forums to get a broader audience to chime in?
No need. It is an experimental airplane. For ignition, you could legally install a big sparkler and the FAA wouldn't interfere.
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  #9  
Old 11-02-2018, 06:57 PM
Stockmanreef Stockmanreef is offline
 
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OK--point taken, but what about the Hartzell note below. Is this just a CYA for Hartzell?
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  #10  
Old 11-02-2018, 07:51 PM
Kyle Boatright Kyle Boatright is offline
 
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Quote:
Originally Posted by Stockmanreef View Post
OK--point taken, but what about the Hartzell note below. Is this just a CYA for Hartzell?
I think their point is "We haven't tested it." (And we're not going to guess.)

So probably, but vibration is a weird thing. As far as I know, experience in the field doesn't seem to show any ignition driven problems with the props.
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