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11-23-2012, 11:29 AM
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Join Date: Mar 2005
Location: Molalla, Oregon (KOL05)
Posts: 529
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Quote:
Originally Posted by SHIPCHIEF
The O-540 comes in several flavors, and a well selected model, stripped of vacuum pump and sporting a flyweight starter, alternator and a wood prop would take about half the sting out of it.
I advocate lightness and simplicity. The O-540 does not meet the lightness, but a fixed pitch prop does meet the simplicity.
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A fixed pitch wood prop on an (I)O-540 engine with the speed performance range of this aircraft would be a total unknown and perhaps a ticking time bomb. I've seen the results of wood props on 200HP RV applications disintegrate. Both pilot and pax were lucky to walk away from that one. The forward end of the aircraft was substantially damaged all the way back to the fuel tank attach points...
__________________
Joe Blank
RV-6
IO-320-D1A
Advanced Flight Systems
Van's Aircraft Inc. Technical Support-Retired
EAA Tech Counselor & Flight Advisor
www.westcoastravens.com
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12-09-2012, 09:04 AM
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Join Date: Nov 2005
Posts: 358
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I too would like to see Van research, develop, and offer, a RV-14 with a -540
People ask, "Why?"
I'll answer that....
http://flightaware.com/live/flight/N...830Z/KMCW/KEFD
I have always known what my next airplane would be, but since buying my Rocket, I am at the end of the line.... There is no place to go up from the Rocket without having a 70 knot stall speed, and zero tolerance for wing contamination. The Lancair, SX300 and Questair are not acceptable solutions for me....
On a trip like the one above the Rocket is a single place airplane unless you have a small passenger.... I am not commenting on my wife's size, she is not a large person, but she is not going to sit in the back of a Rocket for 3.5 hrs.
Further, am not aware of anyone who has a Rocket with good cabin heat in the back seat....
I would hate to give up the fighter feel and center line seating of the F-1, But if Vans would offer a RV-14+ which was -540/-550 powered and retained aerobatic capability, I would probably have found my next airplane.....
I am not interested in an Super-6/7/14 that was nothing more than a -540 bolted on a stock airplane.... If Mark, or Harmon or someone else engineered a modification, that would be my second choice.....
Tailwinds,
Doug Rozendaal
F-1 EVO
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12-09-2012, 10:52 PM
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Join Date: Feb 2005
Posts: 592
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With the 14 in the final design phase, now would be the time for Van to make the changes needed to give it the option to use the 540/550 engines.
Which makes perfect sense because so many potential buyers have expressed a desire for a -540/-550 powerplants.
Whether Van steps up with a beefed up -14 to handle the extra needs for the bigger engine is not yet known but it would be a very smart move on his part.
Just look at his product successes when he listens more to the market than himself:
RV-4, RV-6, RV-7,RV-8, RV-9, RV-10, RV-12 These models were influenced by market demands but with resistance at times.
But when he gives the market the plane it wants, he is highly rewarded.
The comments writted here prove that there is a demand for a more powerful 2 seater in a side-by-side with all those great RV characteristics.
Upgrading the -14 design for a 540/550 should not be a siginificant undertaking either in design or analysis or money.
And I'm convince the money would follow if the option is made available and will solve all the problems of having people build one on without factory support.
From the Legal/PR stand point, go ahead and beef-up what ever is needed, offer the option and you're in the clear. Sell lots and lots of kits and the various sundrys and make lots and lots of $$$$$$$$$ and live even more happily ever after.
Glenn654
PS Besides some extra power would be very useful in getting Mr & Mrs Bubba
off the ground plus baggage and fuel
__________________
_____________________________________________
RV-4 Sold
N654RV @ MLJ
RV-7 Coming Soon
N987RV Reserved
2015 Donation Gladly Paid
"Maintain Thy Airspeed, Lest the Earth Arise and Smite Thee"
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04-02-2013, 09:06 PM
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Join Date: Dec 2009
Location: Boulder, CO
Posts: 4,435
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The spin characteristics would be significantly different with the 540, due to its extra weight and length and moments of inertia about the aircraft's center of gravity.
And some of these same factors will influence the stability of the airplane, even if the center of gravity is within the range originally specified by Van's.
Like the effects on the structure, these other effects will generally be negative.
Bottom line, if you're serious about this, start studying aeronautical engineering now. There's a LOT to learn.
Dave
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05-13-2013, 06:08 AM
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Join Date: Feb 2008
Location: Pensacola, FL
Posts: 374
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Just for kicks
I have often wondered what a -14 would be like if you put the longer -10 wings on with a 540 in the nose? Somewhat like a large super -9? Obviously not used for aero, but I wonder what the cross country characteristics would be like up high? Would probably see somewhat better range from the increased span, no?
I am planning on building a pretty stock -14, this is just a mental exercise!
__________________
RV-? in planning stages.
RV-14 #140050 SOLD
Permanently willing to contribute fuel for RV rides
Helicopter ATP/CFI(I)
ASEL/AMEL Commercial/Inst/CFI(I)
Aerobatic Instruction available
Atlanta based.
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05-13-2013, 07:20 PM
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Join Date: Jul 2008
Location: Clayton, GA
Posts: 193
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Quote:
Originally Posted by LAMPSguy
I am planning on building a pretty stock -14, this is just a mental exercise!
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I am a disciple of the Van's method, but these "mental exercises" as you call them are fun excursions from reality! Keep dreaming guys. I just build.
Bruce
__________________
Bruce Russell
Clayton, GA
Simultaneous Repeat Offender
RV-14A 140005
N48WT
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05-14-2013, 04:39 AM
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Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,840
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Guys have put Allison V-12's in Camaro's and so on.
An IO-540 in a -14 is not nearly as radical as an IO-540 in a -6. I've flown a couple of Super -6's and it's a blast.
Not everyone likes vanilla.
Done correctly, I'd be a buyer too,
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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05-14-2013, 05:51 AM
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Join Date: Jan 2005
Location: Ontario, Canada
Posts: 1,544
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There are assemblers and there are builders. A builder like Van would look at a Stitts Playboy and think, "how could I make this better"? Would a 540 necessarily make a RV14 better? We will not know until a builder figures it out, flies it and gives a progress report. I suspect we will not have to wait too long for that report.
__________________
Tom Martin RV1 pilot 4.6hours!
CPL & IFR rated
EVO F1 Rocket 1000 hours,
2010 SARL Rocket 100 race, average speed of 238.6 knots/274.6mph
RV4, RV7, RV10, two HRIIs and five F1 Rockets
RV14 Tail dragger
Fairlea Field
St.Thomas, Ontario Canada, CYQS
fairleafield@gmail.com
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07-09-2017, 11:49 PM
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Join Date: Feb 2014
Location: Bellevue, WA
Posts: 6
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Sorry to revive an old thread. For the past few years I've been doing research about building a Super 8 (as documented in articles like this Super 8 FAQ and this flying report). However, recently my wife, aka family CFO, aka "the boss", expressed a desire to see something other than the back of my head when we go flying. Hence, a search for fast side-by-side designs began.
Anyway, after a little searching I found this old thread. It's been more than a few years since the last post...
Has anyone started building a Super 14 yet? Would love to hear details about your ideas, mods, etc.
In an era where a rebuilt 540 costs about the same as a new 390, a Super 14 sounds like a reasonable idea.
Last edited by SSR : 07-09-2017 at 11:56 PM.
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07-10-2017, 12:20 AM
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Join Date: Nov 2010
Location: Boston Area
Posts: 135
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Instead of a Super 14, why not build a two seat version of the 10? Most of the engineering is done already, gives plenty of baggage space, ability for O2 tanks...
Tim
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