aircraft static wick

Aircraft Static Wick - This article needs more references for verification. Please help improve this article by adding citations from trusted sources. Non-original material may be challenged and removed. Find Sources: "Static Discharger" - News Newspapers Books Scientist JSTOR (December 2009) (Learn how to remove this template message and how to delete it)

Static discharge wicks, also called static discharge wicks, are devices used to discharge static electricity from an aircraft in flight. They are shaped like small sticks that point back from the wings and are installed on almost all civil aircraft.

Aircraft Static Wick

Static precipitation is an electrical charge on an aircraft caused by flying through particles of rain, snow, ice, or dust. Charge also builds up due to friction between the airship and the air. Because the air charge is so good, it comes from the surrounding air. In addition to stationary spark gaps, the charge exits in large groups through the pointed ends of the aircraft, such as antennas, wingtips, vertical and horizontal stabilizers, and other protrusions. This discharge causes a wide range of radio interference from DC to 1000 MHz, which can affect communication with the aircraft.

Safeway Aviation Static Wick Protector Pn 7101 5

To control this discharge, in order to ensure the continuous operation of the radio communication system and systems, stationary dischargers are installed on the next sides of the aircraft. These include ailerons (electrically driven), elevators, rudders, wings, horizontal and vertical tips. Fixed spark gaps are high voltage devices (6-200 MΩ) with low corona discharge power and sharper ends than the surrounding flat design.

Static arresters are not lightning arresters and do not affect the likelihood of an aircraft being struck by lightning. They will not work if they are not properly secured to the aircraft. There must be a pipeline from all parts of the aircraft to the arresters, otherwise they will be useless. Access panels, doors, hoods, road lights, antenna mounts, control panels, etc. can generate static noise if they cannot be routed through a fixed cable.

Section "static discharger" of the aircraft. Pay attention to two sharp metal tips and protective yellow plastic.

The first static dischargers were developed by a joint Army-Navy team led by Dr. Ross Gunn of the Naval Research Laboratory and installed on military aircraft during World War II. In 1946, a group of US Army Air Corps led by Captain Jones showed that they worked well in harsh weather conditions. Ernest Lynn Cleveland. secret spraying program using commercial aircraft (i.e. "chemical trail" theory).

Safeway Aviation 7101 6 Static Wick Protector

However, these are static electricity cables, short pieces of wire attached to the wing that emit direct current. Without these wires, static electricity can build up on the wing, and uncontrolled sparks can interfere with communication and navigation equipment.

The transmitted image has a very stretched appearance. The filaments appear to run the entire length of the wing, but they actually run a few meters from the tip of the wing. The cables are not visible in many of the 747-8F photos because the plane is so big and the cables are small.

Here is the copyright for the constant string. It is essentially a piece of plastic-coated stranded steel wire less than half an inch thick.

In fact, there is only one "nozzle" in the picture, a place for dumping fuel. Due to the power view, it appears to be in the middle of the wing, but is actually closer to the end (with strings).

Aviation Static Discharger Wick

The spirit is at work here. Sometimes jets have to drain fuel when they have to return after takeoff (or land in the middle of their destination) due to an emergency.

And here is an image of the fuel injection with the fixed lines visible, giving a good sense of scale. We are talking about 777.

I found these little tubes that were discussed on the forum in 2009, this photo was discussed.

Prodiax: These fixed cables have also been controversial. The man spied on the aircraft during maintenance and claimed that the system was indeed used to release the product. Information from an outside source I researched the static cables and was directed to the Boeing PDFs to find the relevant supplier, HR Smith (Technical Developments) Ltd., and a link to the product page.

Static Discharge Wicks

Thanks to @Fin for the original questions. I'm going to grab the OP for a detailed and helpful explanation/exposure.

From the Airbus manual. This shows where they are and how many of them are missing or usable. Airbus calls them "static dischargers".

Gridlock said: Not many things on the plane can be lost by 1/5 part .... Interesting, thanks. Click to expand...

It depends on the aircraft. Somewhere I have a diagram of what the A-10 was designed without. It's... It's instructive.

M9129/01 02 M91290102 Aircraft Aviation Static Discharger Wick New Surplus And Other Used Motorcycle Parts

The aircraft is designed to fly with one engine, one tail, one elevator and one wing half. Information from an external source https://en.m.wikipedia.org/wiki/Fairchild_Republic_A-10_Thunderbolt_II

Mick West said: And this is a photo of a fuel dump with cables intact, which gives a good sense of scale. It's 777. Click to expand... I found the closest parts in my iPhoto library. Taken December 6, 2011 from United Airlines Flight 935: Stack Exchange is a Q&A site for pilots, mechanics and enthusiasts. Registration takes only a minute.

Recently I saw the SU-27 in the face of the Ukrainian Air Force. I saw some noticeable features on his tail and I'm wondering what they are called and what they do?

I believe it's static wires. You can see cables of a similar size/shape on the 1/32 scale model SU-27 as discussed here, but more importantly, you can find them marked 53 in the picture below. The symbol is spelled Static Arresters, which, according to Google Translate, is a "static discharge arrester" (or static discharge wick).

Damazio Family's Rv 10 Project: Aileron Static Wicks

They differ from the cable structure used in most US GA aircraft (just a straight wire that may have some fluid around the base), but as noted by Aerospaceweb, the shape of the string (especially the twisted one). the cone shape shown here) contributes to an increase in the speed in the electric field from the tip to the base of the coil. This encourages the collected charge to return to space from a controlled location and reduces interference with electronic and radio equipment.

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