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02-12-2013, 06:55 AM
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Join Date: Feb 2011
Location: USA
Posts: 3,179
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Build the RV you want
There is a pretty familiar answer to the question "which RV should I build". For the most part, it comes down to goals and priorities.
I was curious about some of the performance differences between the various models. To that end, I went to the factory website and copied down data from a bunch of pages and here is what I found ...
click either image for larger version
The RV-3, RV-12, RV-14, and RV-10 have been omitted since they do not have a 160HP benchmark provided by Vans Aircraft.
This post is not meant to be a debate about individual aircraft getting better numbers or worse. Nor is it about some airframes take bigger engines. This is just meant to show that Vans Aircraft are pretty similar in the performance category.
Last edited by humptybump : 02-13-2013 at 04:51 AM.
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02-12-2013, 08:47 AM
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Join Date: Mar 2009
Location: Plano, TX
Posts: 2,088
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but, but, but.....you forgot the all-important RV-6 
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Colin P.
RV-6A #20603
Complete 5/10/19
PP SEL / A&P
I donate every year on my B-Day (in Dec), but donated early in Sep'19.
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02-12-2013, 08:53 AM
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Join Date: Sep 2006
Location: Townsend, Montana
Posts: 3,179
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you should add take-off and landing distance, also approximate stall speeds
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Retired Dam guy. Life is good.
Brian, N155BKsold but bought back.
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02-12-2013, 10:00 AM
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Join Date: Jul 2008
Location: NorCal
Posts: 565
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It always seemed strange to me that the -9, supposedly best for cruising, has the smallest tanks of the modern two-seaters and the poorest mpg.
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Ralph Finch
RV-9A QB-SA
Davis, CA
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02-12-2013, 10:06 AM
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Join Date: Feb 2011
Location: USA
Posts: 3,179
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RV-6 is missing since Vans Aircraft no longer lists the data for it.
Interesting suggestion to add the official factory T/O and Landing numbers. I'll see what I can do. (updated original post)
One of the statements for why the RV-9 was introduced was to allow smaller, more frugal engines. Very few build them that way. Similarly, how many RV-8's are build with an O320 ?
Last edited by humptybump : 02-12-2013 at 10:27 AM.
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02-12-2013, 10:18 AM
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Join Date: Jun 2011
Location: Catawba, NC
Posts: 318
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In the archives
Here is the RV-6 link Glen! It's in the archives!
http://vansaircraft.com/public/rv6perf.htm
Dan
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Dan Thompson
RV-6A - N426JM - 180hp / C.S. / dual PMags
NC26 - Long Island Airpark, NC
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02-12-2013, 10:26 AM
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Join Date: Oct 2010
Location: La Feria Texas
Posts: 3,822
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But worst omission of all - was the RV12!
Quote:
Originally Posted by humptybump
There is a pretty familiar answer to the question "which RV should I build". For the most part, it comes down to goals and priorities.
I was curious about some of the performance differences between the various models. To that end, I went to the factory website and copied down data from a bunch of pages and here is what I found ...
The RV-3, RV-12, RV-14, and RV-10 have been omitted since they do not have a 160HP benchmark provided by Vans Aircraft.
This post is not meant to be a debate about individual aircraft getting better numbers or worse. Nor is it about some airframes take bigger engines. This is just meant to show that Vans Aircraft are pretty similar in the performance category.
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02-12-2013, 10:39 AM
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Join Date: Feb 2011
Location: USA
Posts: 3,179
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Quote:
Originally Posted by DonFromTX
But worst omission of all - was the RV12!
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It was not omitted for any other reason than Vans Aircraft does not provide data for a 160HP configuration.
"Build the RV you want" 
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02-12-2013, 02:09 PM
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Join Date: Feb 2011
Location: USA
Posts: 3,179
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Thanks Dan. Added the RV-6 to the table in the OP.
The more data I add, the more amazed I am at how similar the performance is across the platforms and yet how diverse the target audience for the platforms. There are some pretty smart people over at Vans Aircraft !
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02-12-2013, 02:30 PM
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Join Date: Feb 2006
Location: San Diego, CA, U.S.A.
Posts: 770
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The RV-4/6/7/8 are aerodynamically very similar to each other (and to a lesser degree the -9 as well), so it should be no surprise that given the same engine their performance and efficiency numbers are also very similar.
That's why the choice does usually come down to personal preferences and priorities (and unending debates) about the design differences and their relative merits. Among them, approved engine choices, top speed, fuel capacity, cockpit configuration, landing gear configuration, and construction methods (old school RV-4/6 versus matched hole RV-7/8/9). And of course, primer!
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