Hello, I’m Korosuke and I’m rearranging my schedule due to various changes caused by the strongest cold wave.
This job is good because I can get paid without hesitation, but when the weather is rough or other irregularities occur, it is not uncommon for me to have to take a sudden flight the next day, even if I am off.
Before I get to the point: Have you ever wondered how airplanes can park so straight on the tarmac when their tires are so far away from the driver’s seat and the difference between the inside wheels is so great that it cannot be compared to that of a car?
I will explain how it works in this issue, so please read on!
About airplane direction changes and internal differences.
When changing direction, airplanes must take into account a considerable difference in internal wheels due to the large distance between the main tires (main wheels) and the cockpit.
For this reason, passenger planes are equipped with a “tiller,” a handle that allows the nose tire to be turned.
At high speeds, directional control is achieved by moving the rudder (tail) to the left or right, but the Tiller is necessary for large aircraft because the rudder is not effective at low speeds.
The system to park straight (1)
The first representative mechanism is the “Marsheller”.
When an airplane enters the tarmac, the guidance staff uses paddles to send instructions to the pilot to park the plane in a straight line.
It can be parked perfectly when guided by someone who is really good at it.
A system that allows straight parking (2)
The second system that allows aircraft to be parked straight is called the VDGS (Visual Docking Guidance System).
It guides the plane straight according to the type of plane and the respective wingspan.
One caveat to this system, however, is that since it is a sensing system and there is a slight time lag until the display, it is possible to go over the stop line at high driving speeds or to be far off the center line because the machine can no longer detect it.
Be aware that if you go over, you must use a towing car to back it up.
Therefore, when using the VDGS, it is necessary to slow down firmly and head for the tarmac.
Click here to see a video of it in action.
Straightforward parking system (3)
Lastly, we will introduce the “outboard camera,” which is basically equipped on larger and more modern aircraft among passenger planes.
As can be seen on the audience camera, the cockpit can also be driven with an outboard camera.
It is very helpful to be able to see the position of the nose tire, although there is a slight time lag here as well, so care should be taken.As can be seen on the audience camera, the cockpit can also be driven with an outboard camera.It is very helpful to be able to see the position of the nose tire, although there is a slight time lag here as well, so care should be taken.
Summary of the straight parking mechanism
How was it?
The main gear of an airplane, even a small airliner, is at least 10 meters behind the main gear, so it is difficult to get used to ground travel at first.
VDGS and others cannot be seen from the seats. Therefore, try to see them from the observation deck or jetway before boarding.
I have written a few more articles about aviation, check them out.
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