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RV-6A G-loads

 
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sarg314(at)gmail.com
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PostPosted: Sun Jun 20, 2010 8:48 pm    Post subject: RV-6A G-loads Reply with quote
One more airworthiness issue: I'm typing up the operating limitations document.  My Van's construction manual specifies +6g, -3g limits for the 6A at aerobatic weight of 1385 lbs, but it never mentions G-load limits for a plane at nominal gross weight.   I could scale these G loads down by dividing by the ratio of  gross weight/1375, I guess.  Is there a more official value for this?

Thanks,
--
Tom Sargent

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Kellym



Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ
PostPosted: Sun Jun 20, 2010 9:01 pm    Post subject: RV-6A G-loads Reply with quote
Use what is official for certified planes in Part 23 for your normal
category gross wt. Off the top of my head, 3.8 positive, somewhere
around 1.5 negative. I'm pretty certain Van's designed for the normal
Part 23 limits for their recommended gross wt. You may want to see what
your empty wt comes in at before deciding whether you want to use the
recommended gross or something a bit higher.
On 6/20/2010 9:44 PM, thomas sargent wrote:
Quote:
One more airworthiness issue: I'm typing up the operating limitations
document. My Van's construction manual specifies +6g, -3g limits for
the 6A at aerobatic weight of 1385 lbs, but it never mentions G-load
limits for a plane at nominal gross weight. I could scale these G
loads down by dividing by the ratio of gross weight/1375, I guess.
Is there a more official value for this?

Thanks,

--
Tom Sargent
*
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Kelly McMullen
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pitts_pilot(at)bellsouth.
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PostPosted: Mon Jun 21, 2010 3:34 am    Post subject: RV-6A G-loads Reply with quote
Tom, you're making this too difficult.  You don't care about the limits at Gross .... because you shouldn't be doing aerobatics that weight.  Scaling doesn't work either because of the engineering math involved.  My advice is to just don't go there.
Linn

thomas sargent wrote: [quote]One more airworthiness issue: I'm typing up the operating limitations document.  My Van's construction manual specifies +6g, -3g limits for the 6A at aerobatic weight of 1385 lbs, but it never mentions G-load limits for a plane at nominal gross weight.   I could scale these G loads down by dividing by the ratio of  gross weight/1375, I guess.  Is there a more official value for this?

Thanks,
--
Tom Sargent

Quote:


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sarg314(at)gmail.com
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PostPosted: Mon Jun 21, 2010 5:48 am    Post subject: RV-6A G-loads Reply with quote
No, I'm not actually interested in pulling G's or even doing aerobatics at all.  It just seems like the G-load figures at ma gross should be in the operating limitations.

On Mon, Jun 21, 2010 at 4:29 AM, Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)> wrote:
Quote:
Tom, you're making this too difficult.  You don't care about the limits at Gross .... because you shouldn't be doing aerobatics that weight.  Scaling doesn't work either because of the engineering math involved.  My advice is to just don't go there.
Linn




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Tom Sargent
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