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  #11  
Old 09-12-2017, 02:34 PM
BobTurner BobTurner is offline
 
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Location: Livermore, CA
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I'm a bit curious about your numbers: 700 lbs plus yourself? Either you have a very light -10, or are planning on less-than-full fuel?
Either way, approach aft cg with caution. Remember that you have to come back to land, and as you burn gas the cg will move further aft.
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  #12  
Old 09-12-2017, 02:43 PM
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JackinMichigan JackinMichigan is offline
 
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Location: Canton, MI
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Hey, what do you know. You're right. I apparently forgot something in my initial calculations.

2700 - 1673 (empty wt) - 360 (60 gal fuel) - 250 (my butt) = 417 lbs.

That's a little more manageable. Thanks for catching that.
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  #13  
Old 09-12-2017, 03:29 PM
BobTurner BobTurner is offline
 
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I strongly urge all -10 owners to write or obtain an Excell or similar spreadsheet for weight and balance. The issue is CG. There are a lot of -10's out there that can exceed the aft limit when loaded unless care is used. And, as I noted, you can start out okay but go out of limits during the flight due to fuel burn.
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  #14  
Old 09-12-2017, 03:39 PM
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Auburntsts Auburntsts is offline
 
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Quote:
Originally Posted by BobTurner View Post
I strongly urge all -10 owners to write or obtain an Excell or similar spreadsheet for weight and balance. The issue is CG. There are a lot of -10's out there that can exceed the aft limit when loaded unless care is used. And, as I noted, you can start out okay but go out of limits during the flight due to fuel burn.
This. I copied an Excel W&B sheet and modified for my plane. It has 2 separate graphs-- takeoff and landing. I run both to insure I'm good to go as I burn fuel.
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  #15  
Old 09-12-2017, 04:10 PM
jwilbur jwilbur is offline
 
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Quote:
Originally Posted by BobTurner View Post
I strongly urge all -10 owners to write or obtain an Excell or similar spreadsheet for weight and balance. The issue is CG. There are a lot of -10's out there that can exceed the aft limit when loaded unless care is used. And, as I noted, you can start out okay but go out of limits during the flight due to fuel burn.
I also noticed recently when I did my W&B that a lot of the reported numbers for wheel positions from the datum were exactly the same as what Van's publishes in their example sheet. My main wheels were something like 1.5" different from that (and I checked these measurements multiple times). I contacted Van's about the difference and they told me the published numbers are from the RV10 prototype and that our kits may very well be different.

I suspect there may be some 10's out there where the CG is not where expected even when doing the math correctly.
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Last edited by jwilbur : 09-14-2017 at 10:05 AM.
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  #16  
Old 09-12-2017, 08:55 PM
bob888 bob888 is offline
 
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Kitty litter
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  #17  
Old 09-14-2017, 09:44 AM
Dorfie Dorfie is offline
 
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Location: Lexington, KY
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Default Kroger water bottles packs of 24

I used the 24 packs of water bottles from Kroger. They weigh about 25lb each. The plastic wrap is pretty strong. 5 in the luggage compartment, 5 on each rear seat. The rear seatbelts holds them together well. Then have observer pilot with me, full tanks and I was at gross weight and not full rear CG.
Will still use the water later!
Johan
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  #18  
Old 09-14-2017, 09:55 AM
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aturner aturner is offline
 
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My wheels also differed from the published datum.
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  #19  
Old 09-14-2017, 04:47 PM
DRMA DRMA is offline
 
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If you have Foreflight on your iPad, you can use the W&B portion to give you a plot that shows your CG with both full fuel and empty.
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  #20  
Old 09-14-2017, 05:34 PM
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Auburntsts Auburntsts is offline
 
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Quote:
Originally Posted by DRMA View Post
If you have Foreflight on your iPad, you can use the W&B portion to give you a plot that shows your CG with both full fuel and empty.
GarminPilot does it too.
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