The starting of an aircraft engine is complicated.
The engine cannot be turned by itself, even if it is directly injected into the combustion chamber, it will not form enough gas to drive the turbine and then drive the compressor in front.
Therefore, the engine relies on external energy to make the engine rotate by itself.
For fighter jets, this kind of energy is mainly provided by ground power vehicles. After all, fighter jets value their own weight. The lighter the weight, the better. For transport aircraft, there is no such concern. Do you care about an auxiliary power system for a transport aircraft with a total take-off weight of several hundred tons
This auxiliary power unit, called APU, is installed on the transport plane, so the transport plane can be started on its own ability.
Now, Jenny puts her hand on the APU switch and activates the auxiliary power unit.
There is not much noise, except for a slight tremor, there is nothing else, and the activation of this auxiliary power unit can already provide a steady flow of electricity and compressed air.
Then, Jenny put her finger on the engine control knob to the ignition start position, and the main switch was lifted up. In this way, the engine had received the start signal and the fuel supply channel was opened.
Then, the gas provided by the APU is quickly blown toward the starter. This air pressure must be high enough, and every engine is started almost at full speed by the APU.
The starter starts to rotate, and the N2 rotor of the engine is driven by the accessory gearbox and transmission gearbox of the engine, and starts to accelerate.
At this time, the engine under the wing began to emit the peculiar whistle of a turbine, and it had begun to rotate!
Soon, the pointer of the engine's tachometer began to rotate. When the speed reached, flames suddenly appeared at the tail of the engine. A circle of fuel nozzles around the combustion chamber began to inject fuel and the combustion chamber began to work!
At this time, the engine speed continued to increase, and as the roar intensified, the starter and the engine had separated.
"The No. 1 engine started normally and is now in a slow state." Jenny said quietly.
At this time, Nathan realized that Jenny was also a veteran. The commercial aircraft license she had was not just as simple as just passing the exam!
"Have you ever flew a big plane?" Nathan couldn't help asking.
Since you are a veteran, you don't have to worry about it.
"I flew a Boeing 707 several times." Jenny said, "It's our family's own."
Well, it turns out that the big family all have private jets, which are of the same level as Boeing 707. Nathan put down the flight manual. If this is the case, what are you afraid of.
"The four engines have all started." Jenny said.
"The lone ranger called Delta, the lone ranger called Delta, preparing for take-off and landing flight training, requesting approval." Nathan said to the radio.
Just now, I said that for the first time, I should taxi first. Now, since Jenny has already flown the Boeing 707, what are you waiting for? Just go straight to heaven.
"Delta received it and can conduct take-off and landing flight training."
For such a large transport aircraft, the fuel consumption is quite terrible for one take-off and landing, and the most difficult thing to operate the aircraft is take-off and landing. Therefore, they mainly conduct take-off and landing training.
Like now.
"Received." Jenny finished answering, and began to gently pull the throttle levers of the four engines back and release the brakes.
The huge C-5 transport aircraft began to roll slowly on the runway. Although the power of the engine is quite strong, the acceleration capability of this aircraft is very poor due to its heavy weight and bloated appearance.
Judging from Nathan's eyes, there is not even a sense of pushing back.
The transport plane accelerated slowly. Nathan watched the scene change outside the window, and then turned to look at Jenny. At this time, Jenny had a serious expression. This look looked very attractive.
The sun shines through the window, looking at Jenny's lines from the side, she is so beautiful, she is still so charming and lovely.
Jenny had already begun to pull the control panel backwards.
Ordinary fighters, that is the operating stick, are right there, while transport aircraft, almost all have large operating panels, hold them with both hands and slowly pull them back.
The nose of the C-5 transport plane began to lift up, the front wheels were off the ground, and the four engines were still pushing the transport plane forward. It flew for more than ten seconds. Finally, the bloated body lightened and it flew up. Up!
Generally speaking, the high-risk situations like take-off and landing are controlled by the captain, but now, Nathan is looking at Jenny, letting Jenny operate it alone, and if there is a problem, he will take over.
And this take-off is quite perfect, relying on the unique gentleness of women, her movements are very slow, and the huge transport plane is like a diligent old scalper, working hard.
"Four turns, ready to enter the landing route." Nathan said.
Of course Nathan knows this kind of transport aircraft. Once the engine is started, drinking oil is like drinking water, gurgling, and saving a little.
In the pilot’s initial training, after taking off, you can re-align the runway by turning around the airport and making four turns. At this time, in the large cabin, Nathan looked out and looked at the white clouds ahead. Yes, I remembered the days of flying black birds.
My flying career is really colorful. I flew a passenger plane, F4, Tomcat, Blackbird, and now I fly C-5.
If it weren't for that opponent, this time his own crossing should have been plain and plain, right
Nathan thought of the opponent again. Because of the opponent's existence, his crossing has become so exciting. Of course, this matter now has nothing to do with that opponent, and he is absolutely unable to get involved. .
Even if he intervenes, it is only for the layout of the Eagle Claw operation in history. It is absolutely impossible for him to know his current plan. As a later traverser, he is foresight.
This is my biggest advantage.
"I have entered four turns, ready to land." Jenny's voice came from her ears.
Nathan raised his head and could already see the runway in the distance.
"Well, you will also be the one who landed." Nathan said, "Stay steady, as usual."
Compared with take-off, landing is more difficult. A little carelessness, or even a slight posture, may cause plane damage. This requires long-term training.
Although Nathan said so, his hand was still on the control panel. Once Jenny had problems with the operation, Nathan immediately took over control. (End of this chapter)