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02-04-2013, 06:12 PM
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Join Date: Jan 2013
Location: Na
Posts: 2
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Rans S19 and Van's RV-12
I've compared the rans to the vans and cannot figure out why the rv12 won't cruise at 136 mph as the rans does. Same engine, same wing loading, roughly the same height, width and wing span but the rans is 100 lbs heavier. Obviously, I'm not an aeronautical engineer. Any advice? I can't make up my mind between the two on a purchase decision. Thank you
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02-04-2013, 06:21 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,420
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Welcome to VAF!
Jay, welcome to VAF.
Are these speed numbers for the Rans from advertising literature, or from actual flying aircraft you know of??
Vans is usually a bit conservative with their speed numbers.
Sounds like a question for the factory to me.
Good to have you here.
__________________
Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011 
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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02-04-2013, 06:56 PM
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Join Date: Dec 2005
Location: San Pedro
Posts: 1,013
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I Haven't looked it up
But I'm pretty sure that Van's advertised an actual top speed of 120 Knots. If I did the math right, 120 K = 138 MPH.
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Building finally
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02-04-2013, 07:04 PM
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Join Date: Jan 2011
Location: Barneveld, NY
Posts: 189
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http://www.vansaircraft.com/public/rv12perf.htm
Actually Vans says 135 MPH
I agree that those numbers have so many variables as to be not real useful. I have flown both aircraft and I think they both fly very similarly. I didn't go for a max speed run on either so I can't talk to that. I really love the S-19 and the useful load is the primary reason I am building a RV-12.
Carl
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Private Pilot
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02-04-2013, 07:10 PM
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Join Date: Mar 2009
Location: Rochester NY
Posts: 669
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Van's says top speed for the RV-12 is 135 mph. The S-19 claims 136 mph. The 138 mph (120 kts) is the Light Sport aircraft limitation.
I read it as pretty evenly matched.
Dan
__________________
RV7A (N7101) - Flying 10/2008
CFI- SE/ME/Inst
A&P
KC2ZEL
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02-04-2013, 11:34 PM
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Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 2,820
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So we are arguing about less than 5 minutes on a trip to the $100 hamburger?
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02-04-2013, 11:59 PM
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Join Date: Dec 2005
Location: San Pedro
Posts: 1,013
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I'm glad that you are looking for the best ELSA
Jay, please attempt to get a demo ride in both aircraft and then decide. If you, like me, are going to spend north of 60K, then the comparative costs of getting a demo ride are relatively small. It may be that one or the other is more attractive to you for purely subjective reasons. I did not fly the R-19, I am told that it is a really good airplane. I think that the RV-12 appears to be a little 'stubbier' than the R-19 but after I took a ride in the RV-12 and 'felt' how wonderfully it flew, the decision was pretty well made for me. The RV-12 is an awesome aircraft.
Incidentally, I really like the removable wings - I thought that I would build a trailer and move my RV-12 between my garage and the airport. It seems that almost no one has used this option except to transport their RV-12 to the airport for finishing construction, etc. I am told that I will probably 'park' my RV-12 inside of a hanger that I share with other airplane owners. I have a great deal of respect for those who already are aircraft owners so I give that advice a great deal of credence.
I suggest that you do more home work as suggested above and also post a 'like' question on the R-19 forums. The answer from those on the R-19 forums might be about the same as mine - to paraphrase others here ' build the aircraft that you want to build'.
You might want to check out the various internet forums such as this VAF and see how much help you might get in answering your questions via the internet. The expertise on the VAF (here) is amazingly thorough and experienced.
Final words tonight - there are over 600 tail kits sold by Vans and over 200 flying RV-12s. Not bad. I have no idea how many 'new' ELSAs there in America but I would bet that a very high percentage of them are Van's RV-12s - for very good reasons I think.
Incidentally, you might want to also check out the 'Sling' - is is a really good looking low wing aircraft too. And they also have a kit for sale. Good hunting!!!
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Building finally
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02-05-2013, 12:17 AM
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Join Date: Feb 2010
Location: Perth, Western Australia
Posts: 1,647
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The POH gives a top speed on 117kts or 119kts depending on loading. Presumably this is without the optional wheel pants, which seem to add another 3-4 kts. As both aircraft are designed to the same 120kt sea level LSA limit, you wouldn't expect to see much difference, so neither plane is likely to overtake Strega in the circuit at Reno. Although maybe a one-class competition like they have for yachts might be interesting, where the skill and cunning of the pilot is the main differentiator.
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rgmwa
RV-12LR 912ULS
120346
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02-05-2013, 04:22 AM
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Forum Peruser
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Join Date: Jan 2005
Location: Austinville, Alabama
Posts: 2,458
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Speed not an issue!
Quote:
Originally Posted by RFSchaller
So we are arguing about less than 5 minutes on a trip to the $100 hamburger?
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Where's the LIKE button?
__________________
Don Hull
RV-7 Wings
KDCU Pryor Field
Pilots'n Paws Pilot
N79599/ADS-B In and Out...and I like it!
?Certainly, travel is more than the seeing of sights;
it is a change that goes on, deep and permanent, in the ideas of living." Miriam Beard
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02-05-2013, 05:07 AM
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Join Date: Feb 2010
Location: Perth, Western Australia
Posts: 1,647
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Quote:
Originally Posted by RFSchaller
So we are arguing about less than 5 minutes on a trip to the $100 hamburger?
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Could make all the difference if they're down to their last few hamburgers 
__________________
rgmwa
RV-12LR 912ULS
120346
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