Today's Message Index:
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1. 02:49 PM - Performance data for N519PJ (Deems Davis)
2. 03:54 PM - Re: Performance data for N519PJ (Robin Marks)
3. 05:44 PM - Machined step bushing to cure wiggly step syndrome (Bob-tcw)
Message 1
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| Subject: | Performance data for N519PJ |
With the wheel pants & leg fairings installed, I set out this am to
record some speed/performance data. Here's the results. I haven't
validated the IAS so I don't know if there's an error in the static
ports. After paint they are essentially flush with the skins, and I
understand that can be a problem.
I'm not sure how this is going to format so I'm also attaching a
spreadsheet version of the data.
Deems Davis
N519PJ
>
> Set 1
>
>
> Set 2
> Heading GPS TAS IAS
> Heading GPS TAS IAS
> 360 178.0 172.0 153.0
> 360 166.0 164.0 145.0
> 270 182.0 174.0 154.0
> 270 161.0 162.0 145.0
> 180 181.0 174.0 155.0
> 180 166.0 164.0 144.0
> 90 185.0 175.0 155.0
> 90 175.0 164.0 145.0
> Average (Knots) 181.5 173.8 154.3
> Average (Knots) 167.0 163.5 144.8
> Average (MPH) 208.9 200.0 177.5
> Average (MPH) 192.2 188.2 166.6
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> Flight Conditions
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> Flight Conditions
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> RPM 2450
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>
> RPM 2350
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> MP 24.5
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> MP 23.5
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> Fuel Flow 16.5
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>
> Fuel Flow 15.4
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> OAT 18C
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>
> OAT 18C
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> Baro Presure 29.88
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> Baro Presure 29.88
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> Pressure Altitude 6500
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> Pressure Altitude 6500
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> Set 3
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>
> Set 4
> Heading GPS TAS IAS
> Heading GPS TAS IAS
> 360 171.0 168.0 149.0
> 360 164.0 159.0 141.0
> 270 165.0 164.0 148.0
> 270 158.0 162.0 144.0
> 180 166.0 166.0 143.0
> 180 166.0 162.0 144.0
> 90 172.0 167.0 145.0
> 90 166.0 162.0 144.0
> Average (Knots) 168.5 166.3 146.3
> Average (Knots) 163.5 161.3 143.3
> Average (MPH) 193.9 191.3 168.3
> Average (MPH) 188.2 185.6 164.9
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> Flight Conditions
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> Flight Conditions
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> RPM 2350
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> RPM 2350
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> MP 22.5
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> MP 21.5
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> Fuel Flow 13.9
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> Fuel Flow 13.1
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> OAT 18C
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> OAT 18C
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> Baro Presure 29.88
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>
> Baro Presure 29.88
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> Pressure Altitude 6500
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>
> Pressure Altitude 6500
>
>
Message 2
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| Subject: | Performance data for N519PJ |
Thanks Deems!
Good stuff. Now I don't have enough time on my -10 to make an
informed statement (that never stops me) but I know my little 6A loved
higher. I flew to Cottonwood the other day at 11,500 GPS = 197.00 Kts.
Now we all find a tail wind once in a while so I don't put ANY weight
into that number but I believe that 6,500 is still less than ideal for
optimizing speed in our similarly configured planes (BPE, SJ, Portly).
Regardless solid numbers for a wonderful design & your beautiful build.
Robin
Message 3
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| Subject: | Machined step bushing to cure wiggly step syndrome |
When I did my step installation I machined aluminum blocks that provided
a clamping structure for the step bolt to work against. I detailed
the installation on our web site. I've had enough folks ask to make
these machined bushings available, so we are adding them to our
available products at TCW Technologies.
Here's a direct link to the details, scroll to the bottom of the page
for the step bushings:
http://www.tcwtech.com/RV-10-construction-project.htm
Bob Newman #40176
TCW Technologies, LLC.
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