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  #11  
Old 01-17-2007, 08:04 AM
designerX designerX is offline
 
Join Date: Sep 2005
Posts: 147
Default Phillips Speed Twin

Thanks Kevin for the Phillips Speed Twin picture. An RV-8 version of that craft would look amazing. Perhaps a 912 or 914 hung off of each wing? (that rotax statement is bound to generate some opinions )

Stan
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  #12  
Old 01-17-2007, 08:06 AM
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Mel Mel is offline
 
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Location: Dallas area
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Default

If you do find that RVaitor take a look at the date on the drawing. It's April 1st.
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  #13  
Old 01-17-2007, 10:43 AM
N282RV N282RV is offline
 
Join Date: Sep 2005
Location: Madison Ohio
Posts: 199
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A friend of mine in the military flew Blackhawks and they have a two engine one rotor configuration. When he got out and was looking for flying jobs he found that all his time in the hawk would be considered single engine time as it only has one propulshion (sp) unit. And on top of that his 1500 hrs in type is questioned by some places as it is not a certified aircraft either!!! Military aircraft are not certified aircraft, probably better. He eventually found a job in the DEA flying blackhawks chasing drug runners down in the islands.
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  #14  
Old 01-17-2007, 12:15 PM
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rv6ejguy rv6ejguy is offline
 
Join Date: Mar 2005
Location: Calgary, Canada
Posts: 5,766
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I can't find a single performance twin kit currently available on the market. If Van's wants to work on something after the RV12, they would have the whole market to themselves.

I'm thinking a push pull 4 seater like the Adam with 0-360s (I'd substitute Subes of course) and pressurized please so I don't need to suck on O2. Might cut into Cirrus and Lancair sales a bit plus open the whole twin market. I'd sell my other 2 RVs in a second to build one of these.

Ken and Van must be looking for something more challenging to design by now.

I'd even take fixed gear but need a 250 knot Vne.
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Turbo Subaru EJ22, SDS EFI, Marcotte M-300, IVO, Shorai- RV6A C-GVZX flying from CYBW since 2003- 441.0 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi2.htm


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  #15  
Old 01-17-2007, 02:09 PM
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n468ac n468ac is offline
 
Join Date: Jun 2005
Location: C09 - Morris
Posts: 579
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It would be nice to see a 300kt airplane out of Van's ... maybe a modified 7 or 8
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(This post by: Christopher Checca EAA Lifetime Member #799388)

Allen Checca (father)
Christopher Checca (son)

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  #16  
Old 01-17-2007, 02:20 PM
smenkhare smenkhare is offline
 
Join Date: Jan 2007
Location: Sydney Aus
Posts: 55
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Quote:
Originally Posted by n468ac
It would be nice to see a 300kt airplane out of Van's ... maybe a modified 7 or 8
hack the -10!
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  #17  
Old 01-17-2007, 02:23 PM
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cawmd82 cawmd82 is offline
 
Join Date: Jan 2005
Location: Dallas
Posts: 302
Default Hensley

The only thing close is Hensley's project. I have talked to them numerous times and I have all sorts of doubts about whether it will ever fly.

There is also a fellow in Nashville who has a 337/O-2a related "kit". It uses a carbon body and 337 wing I think. See www.aviationenterprises.us
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  #18  
Old 01-17-2007, 04:19 PM
davidkarlsberg davidkarlsberg is offline
 
Join Date: Mar 2006
Location: LA
Posts: 127
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Zenith was working on a twin kit plane for a while. Not sure if they are still working on it but check it out, looks cool.

http://www.zenithair.com/gemini/
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  #19  
Old 01-17-2007, 04:45 PM
jedimike007 jedimike007 is offline
 
Join Date: Jan 2005
Posts: 29
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Twin engine design driving one prop... first to come to mind is the Learfan. Dual engines geared to one pusher prop. It was also made of all carbon fiber in the 70's. One great looking plane. I believe several were made, however it never recieved certification due to Bill Lears death.

Mike
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  #20  
Old 01-17-2007, 04:51 PM
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fodrv7 fodrv7 is offline
 
Join Date: Feb 2005
Location: Torquay, Victoria, Australia
Posts: 826
Default Lost performance

If you want total performance then a twin is not viable.

You don't gain much for the extra fuel burn in a twin.

If you compare, for example, the speed and payload of a 285HP Bonanza with a Baron with TWO 285HP engines you gain maybe 20KTs and a bit of payload. You need twice the fuel which means you need a bigger wing to lift the extra fuel and the weight of the second engine which means more drag.

The big advantage of the twin over the single is the difference in performance with one engine failed............ but then you have twice the chance of an engine failure.
Pete.
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