Mailing List flyrotary@lancaironline.net Message #40519
From: Russell Duffy <rusty@radrotary.com>
Subject: Giving up on single rotor, selling rotary stuff
Date: Fri, 30 Nov 2007 10:28:51 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
Greetings,
 
After fiddling with my stock housing version of the single rotor for almost 3 years now, I'm afraid that I just don't see any future in using it as a replacement for a 912S.   Even with the elusive aluminum side housings, it would be 35 lbs heavier, and still have to contend with all the pulse reversal issues, and rough idle problems that occur with any single chamber engine.  Bottom line, I'm done spending time and money on the single rotor project, and I'll be selling the single rotor engine, or just the shafts (I have two).  How it gets sold really depends on whether anyone else is interested in buying the assembled engine or not.  
 
Aside from the single rotor engine itself, I also have an EC2 and EM2 (small LCD) with all the latest updates, along with the Autoflight redrive that will fit any 13B.  The drive is rated for 160HP, and 6000 rpm, and is about a 2.5 ratio.  It seems well built, and is quite a bit lighter than the Tracy's drive.  It is offset such that the prop can be higher, or lower than the E-shaft, by a few inches, which could be really handy in some installations.  I also have about 2 complete engines worth of usable parts, so I believe I have enough stuff for a complete 2 rotor, 160 HP engine.  
 
My desire would be to keep this all together, as a good package for something like an RV-9, where 160 HP is ideal.  I have to admit, that I'm considering building such a plane myself, but haven't decide if it's something I really want to do.  I had planned on building an RV-12 next, but if I can find a second hand RV project cheap, I might not be able to resist another two rotor RV.  
 
If anyone has a strong desire to purchase any of this stuff, let me know and I'll try to get a better inventory of it all, along with a price.  Anyone purchasing the bulk of the engine parts will have to be close enough to come get them (near Pensacola, FL), because it just wouldn't be worth the cost and effort to pack and ship all the heavy engine parts.  
 
Hopefully, someone REALLY wants the package of stuff for the two rotor engine, so I can forget about throwing together another rotary RV.  Of course, if anyone knows of an RV project for sale cheap, I guess I'd like to hear that as well.  
 
Cheers,
Rusty (unknown future)   
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