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11-16-2012, 10:07 PM
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Join Date: Nov 2011
Location: Lewiston, NY
Posts: 35
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Super 14
I would like to start a discussion on the viablity of this option. I understand that folks have been dropping IO 540s in previous RVs with great success so would the RV14 not be a suitable candidate. 
I have read Vans article about VNE, larger engines and High speed flutter but if a closer eye is paid to the ASI so as not to exceed VNE then wouldnt this concern be alleviated.
What I am also interested in is the extra strenght needed to the structure and how that would be accomplished..I understand that with the Harmon Rocket and F1 Rocket this is done by purchasing a third party kit but would a regular builder be able to fabricate the necessary hardware/components to accomplish this.
ps..I do realize that no one has seen any of the plans or construction manuals yet so we would of course be speculating on all this. 
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RV7 Empennage
Paid VAF 10/12
Last edited by RVguy : 11-17-2012 at 08:09 PM.
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11-16-2012, 10:21 PM
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Join Date: Nov 2011
Location: Lewiston, NY
Posts: 35
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Quote:
Originally Posted by gasman
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Thanks Warren, will do. 
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RV7 Empennage
Paid VAF 10/12
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11-17-2012, 05:14 AM
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Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,840
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Steve, it's a TAS matter, NOT an indicated airspeed matter.
Van wrote an article entitled, "The gauge that lies" and was directly addressing VNE issues and that they're related to TAS.
A search should turn up the article.
Best,
__________________
Pierre Smith
RV-10, 510 TT
RV6A (Sojourner) 180 HP, Catto 3 Bl (502Hrs), gone...and already missed
Air Tractor AT 502B PT 6-15 Sold
Air Tractor 402 PT-6-20 Sold
EAA Flight Advisor/CFI/Tech Counselor
Louisville, Ga
It's never skill or craftsmanship that completes airplanes, it's the will to do so,
Patrick Kenny, EAA 275132
Dues gladly paid!
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11-17-2012, 11:13 AM
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Join Date: Jan 2005
Location: Sherwood, Oregon
Posts: 981
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VNE
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Jerry Cochran
Sherwood, Oregon
RV-7a 707DD Bot from David Domeier 12/01/11
Lycoming IO-360 Catto 3 blade Panel upgrade in progress
RV6a 18XP 1st flite 03/21/07 sold to Dale Walter 10/22/2011
Superior IO-360, Hartzell Blended, GRT/Dynon
Happily "autopaying" DR
"Suppose you were an idiot, and suppose you were a member of Congress; but I repeat myself."
Mark Twain
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11-17-2012, 01:35 PM
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been here awhile
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Join Date: Dec 2004
Location: North Alabama
Posts: 4,301
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Quote:
Originally Posted by RVguy
I would like to start a discussion on the viablity of this option. I understand that folks have been dropping IO 540s in previous RVs with great success so would the RV14 not be a suitable candidate. 
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The question begs to be asked..........WHY?
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11-17-2012, 02:26 PM
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Join Date: Jan 2005
Location: Broomfield, CO
Posts: 639
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Quote:
Originally Posted by Sam Buchanan
The question begs to be asked..........WHY?
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Why would someone want to take a perfectly good Stits Playboy and:
-Replace the 75hp engine with a 125hp engine
-Redesign the cowl
-Enclose the open cockpit
-Replace the original externally strut braced wings with aluminum cantilever ones.
Hmmm....only an old fool would try and modify an experimental airplane. 
__________________
RV-7 Flying since 2004
1,100 hrs+
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11-17-2012, 05:48 PM
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been here awhile
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Join Date: Dec 2004
Location: North Alabama
Posts: 4,301
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Quote:
Originally Posted by tobinbasford
Why would someone want to take a perfectly good Stits Playboy and:
-Replace the 75hp engine with a 125hp engine
-Redesign the cowl
-Enclose the open cockpit
-Replace the original externally strut braced wings with aluminum cantilever ones.
Hmmm....only an old fool would try and modify an experimental airplane. 
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Aw come on....I think we are beyond trite statements like that.
The RV-14 isn't even available and we are at least a year from a customer plane flying......even an experimenter needs to wait until the plane has field history before we talk about its "deficiencies".
My question of WHY still stands.
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11-17-2012, 06:53 PM
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Join Date: Jun 2005
Posts: 3,275
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Quote:
Originally Posted by Sam Buchanan
My question of WHY still stands.
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Sam, you ask WHY?
I ask...Why not?
It does not have to mean that there is a deficiency in the stock RV-14.
We have some guy building a twin engine RV-6A. Not my cup of Classic Coke, but as long as he does it with sound construction considerations, why not?
We have a guy who wants to build an A model and operate off a grass/dirt strip with gopher holes. In my opinion, that is a tip-over waiting to happen.
Is a properly constructed Super 14 a safety issue?
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11-17-2012, 07:36 PM
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Join Date: Jan 2005
Location: Broomfield, CO
Posts: 639
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Quote:
Originally Posted by Sam Buchanan
I think we are beyond trite statements like that.
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Nothing trite about my post Sam. Hypocrisy, now there's something we can talk about. Folks praise Vans all the time for what he's brought to the experimental world and he started this process by tinkering and modifying. In the case of the Stits, we're talking major modifications. But many of these same folks scoff at others when they want to modify their own RVs in ways that others may not agree with. It's experimental aviation for goodness sakes!
Quote:
Originally Posted by Sam Buchanan
even an experimenter needs to wait until the plane has field history before we talk about its "deficiencies".
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According to whom? And I don't think the original poster said anything about "deficiencies". He said "I would like to start a discussion on the viablity of this option."
In my personal opinion folks who experiment with their RVs are paving the way for the rest of us. Early RV-3 builder Art Chard's efforts led Van to the RV-6 and what about the pioneers of constant speed props and IFR cockpits. Vans never encouraged those things early on. Over the years there have been many "mods" to RVs that came from folks out in the field operating completely independent of the company and doing what Vans himself did back in the 1960s and many of these mods ended up benefiting all of us. Its good for our industry and its part and parcel to the spirit of experimental aviation.
__________________
RV-7 Flying since 2004
1,100 hrs+
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