Static port locations

[dedgemon]

I'm plans building a Patrol and was wondering, what locations work well for the static ports. Any suggestions? Thanks

[Enewton57]

I plan on putting mine (one on each side) in the bay right behind the baggage compartment. That worked well for my Bearhawk and I will doing it on my Patrol this weekend. I will let you know how well it works.

[dedgemon]

Eric, That's sort of what I have in mind, somewhere back on tail on both sides. RV'ish

[marcusofcotton]

I seem to recall Cessna putting them on the sides in front of the doors. Shorter, easier, lighter runs and seems to have worked well for them.
Mark J

[Jflyer]

Piper Pawnee has one on each side of the fuse behind the cockpit area. I always wondered if it is meant to be back there where the fuse tapers in towards to the tail to effect or not effect the draw from outside airflow

[bearhawk2015]

I put mine on the boot cowl like Cessna does, seems to be accurate, I don't see any reason to make it more complicated than it needs to be

[Gavin Chester]

I used a Raven Pitot Static Tube on my BearHawk , and will do the same for my Patrol.

[Battson]

I seem to recall Cessna putting them on the sides in front of the doors. Shorter, easier, lighter runs and seems to have worked well for them.
Mark J

Cessna also puts them down the sides of the fuselage aft of the baggage area too.

From the old Yahoo group - wasn't there some report of someone having trouble with static vents in the boot cowl??

[Mark Moyle]

Tri-Pacer mounts two static ports on the bottom side of the fuselage just ahead of the stabilizer jack screw. My Pacer didn't have a static port. VSI inaccurate as H E double L. Rebuild and recover now...will install. Mark M. Sent from my iPad using Tapatalk HD

[Phil]

Been wondering about this myself since I'm planning to use a Dynon AoA Pitot that doesn't have a static port.
But I've got a long way to go before I get there.

Phil

[whee]

Where did you guys source your static ports? I have been planning on using a pitot/static tube but recently decided to go with a AOA pitot and it appears that non exist with a static port. The static ports I see on ACS aren't really what I'm looking for; they just don't seem right for gluing to the fabric.

Also, I'm under the impression that behind the baggage area is the best/most reliable placement of the static ports. Is this correct? I'd sure rather place the ports on the boot cowl but since I hope to eventually fly in IMC accuracy and reliability are more important that ease of installation.

[jaredyates]

I used a kit from SafeAir, but it seems they might be gone. It was similar to this:

http://www.cleavelandtool.com/Static-Ports-and-Plumbing-Kit/productinfo/SPFKITW/#.WbawdsiGPDc

[Battson]

The info was on the Yahoo group.
I have certainly observed that behind the aft bulkhead is the most reliable, based on reports from other builders. Mine have been very accurate, placed there.

I know Cessna puts theirs on the boot cowl, and some of the Bearhawks which used that location have had trouble. I remember going through this on the Yahoo group when I came to mount mine. I was going to copy Cessna but I got put-off by the bad reports. I was still a Cessna fan-boy at that point - how times have changed!

I put little angles on the stringers and mounted the static ports to those. The angles had a wide flange so I could glue the fabric to them. It worked out very well, and they have not given any trouble.

I know a few guys who've put their static port inside the cabin... it's been well documented that is a bad idea in most any aircraft if you want accurate readings.
Not a bad idea for a back-up static source, if you're expecting to do flight into known icing.....! So not really applicable for a Bearhawk.

[Bcone1381]

This month in KitPlanes magazine there was an article that discussed location of the static port. It said that

"Pressure on the outside of the fuselage varies substantially with position, and often unexpectedly. An ideal location should therefore be in a neutral pressure area, relatively invariant with airspeed, angle of attack, and altitude. Practical static ports may be included in the pitot mast itself, placing them presumably in neutral air."

The article suggested against guessing where a good location might be on the fuselage then drilling a hole for installation. The author did locate his on the fuselage, but made a trial temporary pair of static ports that were attached to fuselage with adhesive tape, It took him I think four tries to get an accurate location.

If one is chooses not to go with the mast in neutral air or with a trial temporary location, it might be best to use one that is known to work like Battson's. The article lead me to believe its not reasonable for us to assume that a Cessna 180 Location is going to work, especially if located closer to the front of the fuselage.

[jaredyates]

I routed the static lines from the port up to the top of the fuselage, to allow them to drain any moisture hopefully. From there they go down under the floor for a trip to the front.