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Cleveland static port.

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flysrv10(at)gmail.com
Guest

Posted: Thu Sep 03, 2015 2:35 pm Post subject: Cleveland static port.

Hi,

Anyone using Cleveland's static ports?  Is accurate?  If so, how did you determine that it is accurate?



Thanks. 



Do not archive. 



Rob Kermanj 

Sent from my iPad

Tim Olson

Joined: 25 Jan 2007
Posts: 2872

Posted: Thu Sep 03, 2015 2:51 pm Post subject: Cleveland static port.

I have the rounded Cleveland ports. They are pretty accurate. I think 

mine read about 2kts low

in cruise.  The other ones I had were off by 8kts.   You have to fly the 

3 or 4-way GPS

course to determine if they're accurate and know the OAT and everything.



Kevin Horton has a good spreadsheet on that.  Here are some links.  The 

3rd link is

the spreadsheet.

http://www.kilohotel.com/rv8/



http://www.vansairforce.com/community/showthread.php?p=1009217



http://www.kilohotel.com/rv8/rvlinks/GPS_PEC.XLS



Tim



On 9/3/2015 5:31 PM, Rob Kermanj wrote:

 	  Quote: 	
		   



 Hi,

 Anyone using Cleveland's static ports?  Is accurate?  If so, how did you determine that it is accurate?



 Thanks.



 Do not archive.



 Rob Kermanj

 Sent from my iPad

carl.froehlich(at)verizon
Guest

Posted: Thu Sep 03, 2015 3:51 pm Post subject: Cleveland static port.

I had the old Cleveland ports on the RV-8A - the version that was flush with

the outside skin.  Like Tim they were well off in airspeed.  I ended up

fixing the problem by drilling a 1/16" hole in the center of a 3/16" round

head rivet, cutting the head off and then using epoxy to glue the head on

the Cleveland static port.  This provided enough height to solve the

problem.



On the RV-10 I just used a couple of 3/16" rivets for the static port

(AN470AD6-14 from Van's).  I drilled a small hole all the way through the

rivet (get a handful of rivet as it is not easy to keep the hole centered

the whole way through the rivet).  The drilled rivets are mounted through

3/16" holes in the fuselage in the standard spots with a touch of pro-seal

(or epoxy of your choice).  On the inside of the fuselage skin is a 1"

diameter 1/8" thick piece of aluminum (with the same 3/16" hole in the

center) that is pro-sealed over the rivet shank and to the inside of the

fuselage skin.  This provides a rigid mount for the rivet and attached

tubing.  A 1/4" nylon tube slides over the rivet shank, with more pro-seal,

to make the connection.



The static ports proved to be very accurate.



Carl



--

flysrv10(at)gmail.com
Guest

Posted: Thu Sep 03, 2015 6:20 pm Post subject: Cleveland static port.

Thanks guys for the answers. 



I have the Van's method with the rivet head as the static port. At altitude, if I open the vents, the plane loses a few feet of altitude. My pitot/static connections are tight and I can only attribute the issue to a leak right at the rivet head. The RTV method of attaching the tubing to the rivet might be the case. It looks visually good but I don't dare tug on the connection. 



Cleveland's port might be the fix. 



Do not archive. 



Rob Kermanj 

Sent from my iPad



[quote] On Sep 3, 2015, at 6:48 PM, Carl Froehlich <carl.froehlich(at)verizon.net> wrote:

 

 

 

 I had the old Cleveland ports on the RV-8A - the version that was flush with

 the outside skin.  Like Tim they were well off in airspeed.  I ended up

 fixing the problem by drilling a 1/16" hole in the center of a 3/16" round

 head rivet, cutting the head off and then using epoxy to glue the head on

 the Cleveland static port.  This provided enough height to solve the

 problem.

 

 On the RV-10 I just used a couple of 3/16" rivets for the static port

 (AN470AD6-14 from Van's).  I drilled a small hole all the way through the

 rivet (get a handful of rivet as it is not easy to keep the hole centered

 the whole way through the rivet).  The drilled rivets are mounted through

 3/16" holes in the fuselage in the standard spots with a touch of pro-seal

 (or epoxy of your choice).  On the inside of the fuselage skin is a 1"

 diameter 1/8" thick piece of aluminum (with the same 3/16" hole in the

 center) that is pro-sealed over the rivet shank and to the inside of the

 fuselage skin.  This provides a rigid mount for the rivet and attached

 tubing.  A 1/4" nylon tube slides over the rivet shank, with more pro-seal,

 to make the connection.

 

 The static ports proved to be very accurate.

 

 Carl

 

 --

flysrv10(at)gmail.com
Guest

Posted: Thu Sep 03, 2015 6:22 pm Post subject: Cleveland static port.

Thank for the links Tim. Might have to this route. 

Do not archive

Rob Kermanj 

Sent from my iPad

 	  Quote: 	
		   On Sep 3, 2015, at 5:48 PM, Tim Olson <Tim(at)MyRV10.com> wrote:

 I have the rounded Cleveland ports. They are pretty accurate. I think mine read about 2kts low

 in cruise.  The other ones I had were off by 8kts.   You have to fly the 3 or 4-way GPS

 course to determine if they're accurate and know the OAT and everything.

 Kevin Horton has a good spreadsheet on that.  Here are some links.  The 3rd link is

 the spreadsheet.

 http://www.kilohotel.com/rv8/

 http://www.vansairforce.com/community/showthread.php?p=1009217

 http://www.kilohotel.com/rv8/rvlinks/GPS_PEC.XLS

 Tim

> On 9/3/2015 5:31 PM, Rob Kermanj wrote:

> 

> 

> Hi,

> Anyone using Cleveland's static ports?  Is accurate?  If so, how did you determine that it is accurate?

> 

> Thanks.

> 

> Do not archive.

> 

> Rob Kermanj

> Sent from my iPad

glastar(at)gmx.net
Guest

Posted: Thu Sep 03, 2015 9:48 pm Post subject: Cleveland static port.

On 04.09.2015 00:48, Tim Olson wrote:

 	  Quote: 	
		   



 I have the rounded Cleveland ports. They are pretty accurate. 

 ................. and know the OAT and everything.



very nice information Tim, on that item, where did you put your OAT to 
	


get accurate readings?



Cheers Werner

Tim Olson

Joined: 25 Jan 2007
Posts: 2872

Posted: Fri Sep 04, 2015 3:42 am Post subject: Cleveland static port.

It's out under the wing, next to one of the inspection panels, far enough to be out of the prop wash.  In the shade too.

Tim

 	  Quote: 	
		   On Sep 4, 2015, at 12:45 AM, Werner Schneider <glastar(at)gmx.net> wrote:

> On 04.09.2015 00:48, Tim Olson wrote:

> 

> 

> I have the rounded Cleveland ports. They are pretty accurate. ................. and know the OAT and everything.

 very nice information Tim, on that item, where did you put your OAT to get accurate readings?

 Cheers Werner

whodja

Joined: 27 Jan 2014
Posts: 50
Location: Apex NC (near Raleigh)

Posted: Fri Sep 04, 2015 4:00 am Post subject: Re: Cleveland static port.

I spoke with SteinAir this week about the new heated AOA and in discussion I learned that when installing a static port it cannot be flush or you will get false readings. The port must be proud even if a fraction.



Tal Holloway

RV-10 Empennage comp

QB wings and fuselage

glastar(at)gmx.net
Guest

Posted: Fri Sep 04, 2015 5:35 am Post subject: Cleveland static port.

Thanks Tim!



do not archive



On 04.09.2015 13:38, Tim Olson wrote:

 	  Quote: 	
		   



 It's out under the wing, next to one of the inspection panels, far enough to be out of the prop wash.  In the shade too.

 Tim



> On Sep 4, 2015, at 12:45 AM, Werner Schneider <glastar(at)gmx.net> wrote:

>

> 

>

>> On 04.09.2015 00:48, Tim Olson wrote:

>> 

>>

>> I have the rounded Cleveland ports. They are pretty accurate. ................. and know the OAT and everything.

> very nice information Tim, on that item, where did you put your OAT to get accurate readings?

>

> Cheers Werner

>

>

flysrv10(at)gmail.com
Guest

Posted: Sat Sep 05, 2015 11:40 am Post subject: Cleveland static port.

Thanks Tal. Makes sense some Cleveland revised their design to make it project beyond the skin. 



Do not archive. 



Sent from my iPhone



 	  Quote: 	
		   On Sep 4, 2015, at 6:00 AM, whodja <whodja(at)gmail.com> wrote:

 

 

 

 I spoke with SteinAir this week about the new heated AOA and in discussion I learned that when installing a static port it cannot be flush or you will get false readings. The port must be proud even if a fraction.

 

 Tal Holloway

 RV-10 Empennage comp

 QB wings and fuselage

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=446784#446784

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