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09-18-2012, 05:46 AM
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Join Date: Sep 2009
Location: Daytona Beach, Florida
Posts: 121
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W&B Observations
My 7A and most I have seen sit nose high and require about an inch under the main scales to level. I know this won't effect the empty weight, but will render W&B info useless.
It looks by the camber angle of your main gear that you placed the plane on the scales with a jack, if that is the case you should roll the plane back and forth on the jacks to relax the mains. The side loads on the jacks could reduce accuracy. Gene
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09-18-2012, 07:22 AM
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Join Date: Jul 2011
Location: Port Townsend, Washington
Posts: 77
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Quote:
Originally Posted by Alex_K
I've weighed my completed and painted RV-9A. Its empty weight is 1190 lbs. I've been quite unpleasantly surprised. So, the maximum empty weight stated by Van's is 1075 lbs. Please, share by your experience with the weight of RV-9A.

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I noticed from your picture that wing root fairness and wheel fairings are not installed. Are they included in your weight. Also, when I weighed my 9a, I had to block the main gear up about an inch and a half to level the plane. That made a significant difference in the distribution of weight between nose gear and mains. Hence a big shift in CG.
Was your plane leveled for weighing?
Mine was 1071 lb.. IO320, Dynon 180, classic aero seats on Vans foam with Classic baggage and forward carpet. Sensenich FP. Polished with all fiberglass parts finish painted. All fairings installed and 8 qt. oil on board. Headsets were on the seats. I don't think that 1075 is a Vans max wt. They give a range, but of course they don't load their demos up with a lot of stuff, and I believe that Van's philosophy is simple and light.
__________________
John O
RV9a N709RV
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09-18-2012, 10:20 AM
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Join Date: Mar 2011
Location: Milwaukie, OR
Posts: 3
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Quote:
Originally Posted by rockwoodrv9
I would be very interested in the weight of each piece of the airframe. Any builders that have a scale and could weigh the
VS
HS
Rudder
Elevator
Wings
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I weighed some of this stuff using a nice fish scale and a bathroom scale for the wings. Keep in mind I don't have some of the parts for the wings installed yet. ie push-rod and control surfaces. A good fish scale always adds a few pounds when measuring fish and subtracts a few when measuring airplane parts...
all internals primed, no fiberglass, lead counterbalance installed
Right elevator = 7.2 lbs
left elevator = 9.0 lbs
Vertical stab = 7.5 lbs
Rudder = 8.6 lbs
Horiz = 19.7 lbs
Left wing = 51.0 lbs (no flaps, no ailerons, no tips.)
This wing with both skins was weighed.

Last edited by Frez1001 : 09-18-2012 at 03:28 PM.
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09-18-2012, 12:01 PM
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Join Date: Aug 2010
Location: Moscow, Russia
Posts: 44
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Quote:
Originally Posted by GeneL
It looks by the camber angle of your main gear that you placed the plane on the scales with a jack, if that is the case you should roll the plane back and forth on the jacks to relax the mains. The side loads on the jacks could reduce accuracy. Gene
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I didn't use that jack. I lifted the wing up by my back and used assistance of my buddy
Thank you guys for your kind response to my question and for valuble information! It's seemed I have the heaviest 9A. Probably there is a lot of stuff inside my bird and it's painted heavy with a good layer of lacquer.
Now, I have to scratch my head well to decide what could be thrown out of the plane  I don't know...
__________________
Alexander Kochetov
RV-9A
Flying
Last edited by Alex_K : 09-18-2012 at 12:03 PM.
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09-18-2012, 12:30 PM
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Join Date: Dec 2010
Location: Vacaville, CA
Posts: 167
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Don't feel too bad. My 9a with a Subaru engine weighs 1187. The builder used 1850lbs for a gross weight. Having a heavy airplane is not ideal but yours looks beautiful and will still perform very well. Enjoy!
-Andy
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09-18-2012, 01:23 PM
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Join Date: Sep 2008
Location: Christchurch, New Zealand
Posts: 187
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Videobobk,
In your post you mention using a carbon fibre canopy. By this do you mean you used cf as an alternative where fibreglass would normally be used, or is there more to it than this?
Thanks.
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09-18-2012, 01:23 PM
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Join Date: Dec 2005
Posts: 319
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Your plane is beautiful
You have a beautiful airplane and you will enjoy it a ton. The weight is what it is so go fly safely. Have you upgraded to the lightweight starter?
N942WG came in very light at 1047 pounds with paint, sparse interior, virtually seat and back cushions only, Lycoming O-235, 118hp with Catto fixed prop and a functional but simple all electric panel. Here are a few pics to show how simple it is.
[IMG]  [/IMG]
[IMG]  [/IMG]
N942PT, is heavier with paint, full Flightline interior, Lyc O-320, Sensenich prop, complex all electric panel. 1099 pounds. Did not use clear coat on either plane.
[IMG]  [/IMG]
[IMG]  [/IMG]
Again, you have a beautiful airplane which you will enjoy completely. I personally like your creature comforts.
Pat Garboden
RV9A N942PT (Reserved)
Working on FAA inspection paperwork
Katy, TX
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09-18-2012, 03:15 PM
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Join Date: Oct 2008
Location: Boston area
Posts: 128
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Using electronic bathroom scale, I got pretty close others on tail:
18 vs, rudder, fairings, assembled
40.5 hs,elevator, fairings, assembled
No paint, trim servo,electric, etc.
__________________
Richard
RV9: tail complete
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09-18-2012, 10:49 PM
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Join Date: Oct 2007
Location: Beaverton, OR
Posts: 232
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To stir the pot once more.
Right aileron 7
Right Flap 7.1
Right Wing 75
Right Wing Tip 4.75
Right Wing Tip Light 0.2
Left aileron 7
Left Flap 7.3
Left Wing 73.5
Left Wing Tip 4.75
Left Wing Tip Light 0.2
Vertical Stabilizer 7.44
Rudder 16.3
Rudder Light 0.1
Horizontal Stabilizer 19.25
Horizontal Stabilizer Tip
Right Elevator 5.75
Right Elevator Tip 0.81
Left Elevator 6.31
Left Elevator Tip 0.81
Fuselage 251
Nose Landing Gear 19.125
Right Landing Gear 26.625
Left Landing Gear 26.5
Canopy 17.25
Top Cowling 5.69
Bottom Cowling 8.5
Total 598.26
Two scales 1. fish scale 0-50 lbs 2. Digital 0-440 lbs rigging as best I could.
All parts assembled per vans plans and unfinished. W&B Rev 0.
__________________
whd721
RV9A
Sherwood, Oregon
As Bill Stout (designer of the Ford Trimotor) used to say, ?Simplicate and add Lightness?
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