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  #1  
Old 02-09-2017, 03:34 PM
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deej deej is offline
 
Join Date: Jan 2005
Location: Brunswick, ME
Posts: 304
Default Electric variable pitch prop?

I have a solid crank Lyc O-320, so I can't use a hydraulic prop. I've been looking around for electric variable pitch props, but at $14k the MT is just ridiculously expensive.

I've found GT propellers.

Are there any other companies that make an electric variable pitch prop for a Lycoming O-320?

Thanks,

-Dj

Last edited by deej : 02-10-2017 at 01:03 PM.
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  #2  
Old 02-09-2017, 04:15 PM
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N941WR N941WR is offline
 
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Location: SC
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Check with Brian Kelly of Radial RV-8 fame. He is running one of their props. Here is the link.

The other option is to find an Aeromatic propeller that will work with your O-320.

I flew behind one on a Fairchild 24W and it was a pretty cool prop! The pitch changed automatically based on air loads. Of course, the F24W is a LOT slower than your RV.
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Last edited by N941WR : 02-09-2017 at 05:06 PM.
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  #3  
Old 02-09-2017, 04:18 PM
moosepileit moosepileit is offline
 
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Location: Floyds Knobs, IN
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Default

I wanted to try the Avia 503AP they had for a few years a decade ago. Saving on a 2 blade Catto.
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  #4  
Old 02-09-2017, 04:24 PM
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rv6ejguy rv6ejguy is offline
 
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Location: Calgary, Canada
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Default Russian Props

These folks are working on an electric VP design: http://propeller.simplesite.com/426017906
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  #5  
Old 02-09-2017, 06:37 PM
h&jeuropa h&jeuropa is offline
 
Join Date: Jun 2008
Location: Kalamazoo, MI
Posts: 199
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I have an Airmaster on my Europa and it works well. But I just had a look at the website and they don't list Vans or Lycoming.

Send them an email - they are good at responding.

http://www.airmasterpropellers.com/

Jim Butcher
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  #6  
Old 02-10-2017, 04:27 AM
n816kc n816kc is offline
 
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Location: Winter Haven, FL
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Default Airmaster

Has been developing a Lycoming version for a while now. They're holding close, may have some news at SnF.
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  #7  
Old 02-12-2017, 02:18 PM
Robert Anglin Robert Anglin is offline
 
Join Date: Mar 2008
Location: houston, texas
Posts: 822
Default Fixed pitch that can change by it's self.

I think you would be looking for a fully adjustable prop, but. You may want to look at one like a Prince "P" tip. We run one on our 8 and it does as it was said, change about 4" of pitch from full low speed coned load "like take-off" to that of cruse up at speed. We set it up as Lycon and Toni Bigalus have recommended, 2,300 RPMs + or - 50 at full static run-up and full rated 2,700 RPMs at 7,500' D.Alt. + or - a little. It comes in at 2-3 mph. of other top brand props on the top end and bites hard for good take-off runs. I like ours, it is very durable with Urethane leading edge protectors. I know I have picked up more than a few good size rocks off our old bad taxi areas. Just two pennies, Yours, R.E.A. III #80888

Last edited by Robert Anglin : 02-12-2017 at 02:22 PM.
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  #8  
Old 02-12-2017, 06:31 PM
David Paule David Paule is offline
 
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Location: Boulder, CO
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Your options would increase if you had a hollow crank. Would the swap be worth it? Of course you'd also need a governor and a governor adapter.

Dave
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  #9  
Old 02-12-2017, 08:27 PM
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deej deej is offline
 
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Swapping engines would cost me way north of the $14k to buy an MT! :-) If I pull the engine, it would only make sense to put in an IO-360, or at the very least an O-340 stroker to replace the O-320. Plus, I'd still have to buy the constant speed prop, which even though hydraulic would still be around $10k.

The GT prop includes the spinner, but not the electric constant speed controller, which would be another $1k, so around $9k total. So far that is the least expensive option sans finding something on the used market, or an announcement at Sun-n-Fun.
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  #10  
Old 02-13-2017, 07:15 AM
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Raymo Raymo is offline
 
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I have a MT electric prop for sale. It needs to go back to MT for repair (prop strike at idle damaged one blade). MT estimated 4500-5k for repair. I'm asking 2k plus shipping as is.

Ping me for details, if interested.

EDIT: This was on a O-235-L2C so it may need both blades replaced, which would likely affect repair cost.
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