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  #1  
Old 05-04-2015, 07:19 PM
thoma015 thoma015 is offline
 
Join Date: Apr 2015
Location: Oklahoma
Posts: 114
Default -7 Empennage for a -8

So I ordered the preview plans for a 7 which should arrive tomorrow. I plan to order the Emp kit by the end of the month, but im second guessing myself whether to build a -7 or -8. Looking at the price difference for between the two empennage kits, im assuming one won't work for the other.

I was hoping to make up my mind during the build process of the emp kit. Can anyone confirm my suspicion?
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  #2  
Old 05-04-2015, 10:12 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 3,947
Default Emp difference

Hawk
The two have some parts shared but not all. I don't think they can be swapped.
If you post your concerns, I'm sure someone will help you decide.
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Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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  #3  
Old 05-05-2015, 12:30 AM
xblueh2o xblueh2o is offline
 
Join Date: Apr 2011
Location: SF East Bay
Posts: 852
Default

The rudder is different for sure. The horizontal stab is also slightly different. Not sure about the vertical stab or elevators.
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RV-8 with the Showplanes Fastback conversion
Emp completed except for glass work
Wings completed except for bottom skin and glass work
Fuselage underway
N18451 reserved
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  #4  
Old 05-05-2015, 05:10 AM
David-aviator David-aviator is offline
 
Join Date: Feb 2005
Location: Chesterfield, Missouri
Posts: 4,514
Default

Quote:
Originally Posted by thoma015 View Post
So I ordered the preview plans for a 7 which should arrive tomorrow. I plan to order the Emp kit by the end of the month, but im second guessing myself whether to build a -7 or -8. Looking at the price difference for between the two empennage kits, im assuming one won't work for the other.

I was hoping to make up my mind during the build process of the emp kit. Can anyone confirm my suspicion?
I've built the 7 and the 8. If sitting side by side is not an issue, go with the 8. It is more fun to fly.

Seems to me, without looking it up, as tail feathers go, the 9 uses .016, the 7 .020 and the 8 .032. I could have had a dream though so don't quote me on it. My brain is full of numbers that need be confirmed.
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  #5  
Old 05-05-2015, 07:21 AM
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
Posts: 5,516
Default

Quote:
Originally Posted by David-aviator View Post
My brain is full of numbers that need be confirmed.
THAT is funny . . . and familiar
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RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
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  #6  
Old 05-05-2015, 08:22 AM
thoma015 thoma015 is offline
 
Join Date: Apr 2015
Location: Oklahoma
Posts: 114
Default

Quote:
Originally Posted by wirejock View Post
Hawk
The two have some parts shared but not all. I don't think they can be swapped.
If you post your concerns, I'm sure someone will help you decide.
My concerns are really just my inability to make a decision and stick with it. The wife says she wants to sit next to me but she doesn't really care for flying anyhow. I love the centerline seating of the -8 and stick in right throttle in left hand.
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  #7  
Old 05-05-2015, 08:46 AM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 3,947
Default Wife

Easy
How important is it to have a happy wife beside you? Lots of us made the same choice.
My wife loves to fly and wanted to sit beside. Happy wife.
You could fly from the right seat.
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Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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  #8  
Old 05-05-2015, 11:59 AM
thoma015 thoma015 is offline
 
Join Date: Apr 2015
Location: Oklahoma
Posts: 114
Default

Larry,

you are correct...Happy wife, happy life.

I can alway build a -8 down the road.
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  #9  
Old 05-05-2015, 02:51 PM
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Raymo Raymo is offline
 
Join Date: Nov 2014
Location: Richmond Hill, GA (KLHW)
Posts: 2,189
Default

Nice thing about the 7 is that you can fly from either side and training is easier, IMO.
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RV-7A - Slider - N495KL - First flt 27 Jan 17
O-360-A4M w/ AFP FM-150 FI, Dual PMags, Vetterman Trombone Exh, SkyTech starter, BandC Alt (PP failed after 226 hrs)
Catto 3 blade NLE, FlightLines Interior, James cowl, plenum & intake, Anti-Splat -14 seat mod and nose gear support
All lines by TSFlightLines (aka Hoser)
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  #10  
Old 05-05-2015, 06:29 PM
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s10sakota s10sakota is offline
 
Join Date: Feb 2005
Location: Westland, MI
Posts: 311
Default

I originally bought an RV-8 tail kit because I liked the centerline seating and the more 'fighter jet' feel.

My -8 tail kit was delivered and before I even opened it, I decided to go with the RV-7 because of the side-by-side seating. My dad is not a pilot, but absolutely loves flying with me in my other homebuilts (and now my Cherokee).

So the more I thought about it, I wanted him beside me so he could see the panel, flip switches, play with the GPS, etc...

Plus, something else I discovered I really like about having another seat beside me is that since I fly 90% of the time by myself, I always seem to take a cooler of food with meals, snacks, etc... I like having the other seat as an area to put my food, charts, and what ever else.

I ended up selling the -8 tail kit at a $500 loss, and bought the RV-7 tail kit.

If I ever build another RV (which is likely) I'll build the 8.
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