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01-21-2018, 06:48 AM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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[quote=tomww;1233764]Do you really not realise your ground speed and MPG are due to a stonking great tail wind?[/url]
Do you realize those MPG numbers were calculated using TAS, not GS?
If I had used GS, the -9 is over 40 MPG and the -6, with a slight tailwind is at 28.1 MPG.
One other thing I noticef, the -9 is flying at 17.6 DA and the -6 is at 16.6 DA.
Impressive numbers for both aircraft. (Even though the -9 is the better aircraft for high altitude cruising.)
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
Last edited by N941WR : 01-21-2018 at 07:00 AM.
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01-21-2018, 07:11 AM
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Join Date: Jan 2005
Location: Twin Cities, MN
Posts: 1,565
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Quote:
Originally Posted by N941WR
Do you realize those MPG numbers were calculated using TAS, not GS?
If I had used GS, the -9 is over 40 MPG and the -6, with a slight tailwind is at 28.1 MPG.
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Wrong. The EMS-D10 in the -6 computes MPG via groundspeed; it has no access to TAS data.
__________________
Brad Benson, Maplewood MN.
RV-6A N164BL, Flying since Nov 2012!
If you're not making mistakes, you're probably not making anything
Last edited by ChiefPilot : 01-21-2018 at 05:31 PM.
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01-21-2018, 07:11 AM
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Join Date: Feb 2010
Location: Gardnerville Nv.
Posts: 2,828
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Quote:
Originally Posted by snoop9erdog
Regardless of the model or the performance numbers.
Ditch the pole vault nosewheel design and be a real man.
Put the little wheel in the back  ...I changed my mind on my build to tailwheel. Hope I like it.
Uh oh....now I did it.
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Do you have great BIG oversized tires on your truck also to compensate for..... 
__________________
7A Slider, EFII Angle 360, CS, SJ.
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01-21-2018, 07:32 AM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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Stu,
See if you can arrange back-to-back rides in both, if you can find one of each with the same engine - prop combination.
That is the only way you can make an honest assessment of what is best for you.
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
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01-21-2018, 08:12 AM
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Join Date: Oct 2005
Posts: 259
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You guys are great
Well I knew I was headed to forbidden territory with the the tailwheel comment. Serves me right.
But....mission accomplished. I managed to get Captain Avgas to chime in. Nowadays, That's a rare feat.
The reality is that either model is sufficient. I personally prefer a 45 stall speed for various reasons.
I actually drive a piece of junk rusted out Toyota Tacoma that I have to keep the drivers side window cracked open so I can open it up from the inside because both door handles are broken....but that little engine keeps on purring. Not even sure if I could put bigger tires on.
__________________
Ed Avila
St. Johns, AZ (SJN)
N646A RV9
Worlds longest RV build...but getting there
Last edited by snoop9erdog : 01-21-2018 at 09:18 AM.
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01-21-2018, 08:24 AM
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Join Date: Oct 2005
Posts: 259
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I must admit though....I'm puzzled. In your signature, you have an 8 in progress, but you are are asking about a 7 or 9? Are changing?
I think a carbon cub would be fantastic....until you have to travel a long distance..so I hear you on that one.
Do a search on here for videos of a gentleman from Seattle who recently flew his red and white 7 to Alaska. One of the best videos I've seen to date.
__________________
Ed Avila
St. Johns, AZ (SJN)
N646A RV9
Worlds longest RV build...but getting there
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01-21-2018, 10:27 AM
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Join Date: Jan 2015
Location: uk
Posts: 57
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Quote:
Originally Posted by N941WR
......
Impressive numbers for both aircraft. .......
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Especial for the 9 that is going almost but not quite as fast as the 6.   
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01-21-2018, 10:42 AM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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Quote:
Originally Posted by tomww
Especial for the 9 that is going almost but not quite as fast as the 6.   
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More so when you consider that I wasn't at full throttle on that flight.
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
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01-21-2018, 10:55 AM
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Join Date: Apr 2012
Location: West Fargo, ND
Posts: 1,073
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Hindsight, wish I would have gone with a -9 Tailwheel. How about a -9 with a YIO-360-M1B with Smooth bottom cowl, maybe some big tires up front and a baby bushwheel in the back, that would be cool.
__________________
Derek Hoeschen
EAA Tech Counselor
RV-9A #92103 - N803DK
G3X, Superior XO-320, Dual Pmags, Catto 3B
www.mykitlog.com/dbro172/
1974 Bellanca Super Viking - N16AW - Flying
RV-8 #83565 - N184DK - building
1968 Mooney M20C - N6801N - Sold
1956 C-182 - N744W - Sold
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01-21-2018, 02:34 PM
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Join Date: Oct 2015
Location: Indianapolis, IN
Posts: 254
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Quote:
Originally Posted by snoop9erdog
I must admit though....I'm puzzled. In your signature, you have an 8 in progress, but you are are asking about a 7 or 9? Are changing?
I think a carbon cub would be fantastic....until you have to travel a long distance..so I hear you on that one.
Do a search on here for videos of a gentleman from Seattle who recently flew his red and white 7 to Alaska. One of the best videos I've seen to date.
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Long story.
__________________
Stu F.
RV8
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