Runway service. Determination of the airfield runway capacity for servicing two types of aircraft. Thus, the repair work carried out by the Aerodorstroy company helped extend the life of the canvas by several

While the passenger is indignant and languishing in anticipation of the detainee due weather conditions flight in the waiting room a large number of the employees and technical facilities of the airdrome are thrown to minimize their suffering (passengers) and send them on the road as soon as possible. I propose to see what happens at the airport while you call the administrator, demand immediate explanations, try to catch a taxi to Los Angeles, or just sit down in an armchair or on a free piece of floor while waiting for a flight.

To combat snow and ice, Domodedovo Airport has a fleet of more than 40 cars. It has graders and combines for cleaning runways, taxiways and aprons, machines for distributing reagents, devices for checking adhesion to the coating of the strip, platforms for processing aircraft from icing (deicers).

Deicers (foreground), graders, combines ...

The working body of the snow harvester.

Graders have so many details that they ask me to take them off. :)

Brushes!

This machine usually closes the parade of harvesting equipment and checks the adhesion of the coating on the runway. If the coefficient does not meet the requirements, the processing is repeated.

Traction coefficient is checked with this trailer. Two different wheels on the same axle: this is what you need here.

Snow harvester in action.

And here I am invited to the cabin of one of the graders!

Meanwhile, one of the runways of the airfield is closed for cleaning and the column of cleaning equipment is put forward for processing. Closing the lane will not affect the operation of Domodedovo Airport, as there is a second lane.

The "cleaning equipment parade" begins: cars clean and blow snow from the strip.

Sometimes you think like this: whether to give up all this creativity and go to the drivers of a snowplow? :)

Snow dust pillar.

This machine distributes reagents across the runway.

Elena Galanova, head of the press service of Domodedovo Airport. You could often see her on TV.

And we move to the parking lot, where the aircraft are awaiting treatment with an anti-ice reagent. Processing is carried out immediately before departure, since it is at the time of take-off and climb that the icing of the wings and tail are highly dangerous.

The ice crust is able to change the geometry of the wing, it will lose its lift force and ... well, you understand that it is extremely undesirable to allow this. Here for this and produce processing. Processing is done after the crew has entered the plane, passengers and all cargo has been loaded, that is, the plane is prepared for departure.

Here is the Yak42D, now deisers will begin processing.

Processing begins. There are special antennae sensors at the end of the boom so as not to damage the skin: if the antennae touches the body, the boom will stop immediately and the operator will be notified of this trouble.

Two machines work to speed up the process.

The anti-icing liquid is inside the machine with a temperature of more than 80 degrees, this creates steam, which is especially enchanting in the dark. :)

The board treated with anti-icing fluid is towed to the runway: passengers can be calm, icing does not threaten the aircraft.

Of course, the most effective thing is that deising looks in the dark :). They are handling an Emirates aircraft.

And this is the board of Cathay Pacific. In the background is the newly crafted Emirates.

Such a sur.

Emirates A340, meanwhile, is already waiting for permission to take off.

Later, Cathay Pacific also leaves for him. Also, probably somewhere in a warm country where there is no snow and the need for deysing.

The airfield in the dark is especially beautiful.

Actually it was darker: probably, cats and other nocturnal predators see something like this in the dark. Well, the cameras at a shutter speed of several minutes.

And a little more aero-surrealism :).

But this could not be conveyed as enchantingly as in life - especially since the lights also flashed with an interval of 2 seconds.

I express my gratitude to the press service of Domodedovo Airport for the possibility of filming.

Taken from docent inFighting Domodedovo Airport with snow and ice

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UDC 338.47

ANALYSIS OF PERSPECTIVE TECHNOLOGIES FOR MAINTENANCE OF Airstrips of airfields

S. L. Parshina *, I. O. Knyazev, D. V. Makarenko, M. V. Safronov Scientific adviser - G. A. Karacheva

Siberian State Aerospace University named after academician M.F. Reshetnev Russian Federation, 660037, Krasnoyarsk, prosp. them. gas. Krasnoyarsk Worker, 31

* E-shaI: [email protected]

The most difficult and critical period of operation of civil aviation airports in many countries is winter. This article discusses promising technologies for cleaning runways of airfields, as well as analyzes to identify the most promising method for cleaning runways.

Key words: runway, cleaning technology, maintenance of airfields.

ANALYSIS OF PERSPECTIVE AERODROMES RUNAWAY MAINTENANCE

S. L. Parshina *, I. O. Knyazeva, D. V. Makarenko, M. V. Safronov Scientific supervisor - G A. Karacheva

Reshetnev Siberian State Aerospace University 31, Krasnoyarsky Rabochy Av., Krasnoyarsk, 660037, Russian Federation * E-mail: [email protected]

Winter is most difficult and responsible period of operation civil aviation airports in many countries. This article represents prospective technologies for cleaning runways of airfields, also the analysis is made to identify the most promising method for cleaning the runway.

Keywords: runway, cleaning technology, airfield maintenance.

In almost the entire territory of Russia, negative temperatures prevail during the winter period, which are a potentially dangerous factor for civil aviation. During this period, the basis of flight safety is the preparation of airfield coatings, namely the elimination of snow and ice formations on the runways of airports. In order to ensure a safe landing and dispatch of aircraft, you need to make a large amount of effort and money.

Elimination of weather precipitation must take place very quickly and efficiently, which is why snow-removal equipment during the snowfall and after it works without stopping. In any weather, the runway should have good adhesion to the aircraft, so the runway cover should be thoroughly cleaned at the time of takeoff and landing of the airliner.

Various technologies are used to clean snow on the runway, such as: cleaning the runway mechanically; thermal runway cleaning and chemical runway cleaning using chemical reagents. Next, we will conduct a comparative analysis of the advantages and disadvantages of existing technologies for cleaning the runway, which are presented in table 1.

The first technology to clean the runway is to remove snow mechanically. This method is applied as soon as on the surface of the runway

Section "Innovative Economics and Management"

there is snow accumulation. As noted in the order: “Snow is removed over the entire width of the runway cover with plow-brush snowplows. Their work should be organized in such a way that the machines sequentially moving one after another at a distance of 30-35 meters, with the overlapping of the previous row by 30-40 centimeters. "

Table 1

Comparative analysis of the advantages and disadvantages of existing cleaning technologies

runway

Ways to clean the runway Advantages Disadvantages

Mechanical method 1. Rotary milling machines are able to clear a large layer of snow. 2. Special the equipment works up to - 40 C. 3. Inexpensive maintenance special. technicians. 4. Safe for the environment. 1. Cleaning can be carried out only after the snowfall. 2. Cleaning only fresh snow.

Chemical method 1. Chemical reagents do not allow ice to form again. 2. The fast melting of ice. 3. The ability to fly in any weather conditions. 4. Long-term preservation of the effect of chemicals. 5. High melting ability. 1. Chemical reagents cannot be used on new (up to 2 years) surfaces. 2. Reagents in liquid state can lead to even greater icing.

Thermal method 1. Thermal machines melt ice. 1. Expensive maintenance of heat engines. 2. There is a risk of overheating of the coating and blowing out of the joint filler. 3. Large energy intensity. 4. Very slow. 5. High fuel consumption.

In parallel with the plow-brush snowplows, milling-rotor cleaners work, which are used to move snow shafts at a distance from the runway. Further, snow collected in shafts and piles must be removed in a timely manner. As stated in the instruction manual civil airfields : “Snow is loaded into dump trucks with snow loaders or rotary snow blowers equipped with a snail. To increase the volume and carrying capacity of the dump truck body, it is recommended to equip it with removable sides with a height of at least 600-1200 mm. ” The disadvantage of this cleaning technology is that cleaning can be carried out only after the end of the snowfall, and it is made only of freshly fallen snow.

The next technology is thermal runway cleaning. This technology requires high costs to service equipment and has many technical issuestherefore not very common. Thermal melting of ice formation in comparison with the mechanical cleaning method is also uncompetitive, since their productivity is relatively low. The cost of fuel is high, and it is believed that the cost of installation cannot be reduced until such a system is more widely used with a subsequent reduction in the cost of its manufacture.

In some countries, turbine engine exhaust jets are used at military airfields. Such a method of cleaning the runway from winter weather conditions is extremely slow and maintenance of airfield equipment requires a large fuel consumption and heat loss. Using this cleaning method in most cases leads to damage to the artificial coating due to careless exposure to heat.

The latest technology for cleaning the runway is snow removal by the chemical method, using chemical reagents in solid and liquid state. With this method, extreme caution must be exercised, since many chemical

katas have strong corrosive properties to metals or have a harmful effect on materials used in aircraft manufacturing.

For the distribution of chemicals, special equipment is used - spreading and trailed machines. The fuel consumption for such units is not very large and depends on the speed and adjustment of the spreading or spraying device. Reagents in solid state are stored in special bins. Aqueous solutions of chemical reagents are prepared in tanks of special or irrigation machines.

Based on the analysis of runway cleaning technologies, it can be seen that on this moment there is no such cleaning technology that would fully meet all the 100% technological and functional requirements for runway cleaning, but nevertheless, the method of removing ice and snow with chemical reagents, in our opinion, is most effective in comparison with other technologies. The speed of the means for distributing chemical reagents and removing ice melting residues is 5-6 times higher than that of heat engines.

Thus, the best method is not to fight ice, but to try to prevent its occurrence by distributing chemicals that have a number of the most important advantages and advantages in our opinion: high melting ability; minimal impact on environment; efficiency with low temperatures. Spreading reagents before ice formation is the safest and most effective method of dealing with ice on runways.

1. Order of the Ministry of Industry and Trade of the Russian Federation No. 1215 “On approval of regulatory methodological documents governing the operation and operation of experimental aerodromes // from 30.12. 2009 year

2. Operation manual for civil aerodromes Russian Federation// S. 9.

3. Guide to airport services // 2016. S.7-3.