Chapter 1198： Lightning bomber taking off (1/2)

The two quickly got into the cabin and prepared for takeoff in an orderly manner.

Kregel flipped the switches one by one, and then his eyes looked at the engine of the left wing.

”Oh, hum.” A burst of black smoke came out, and the engine roared.

This did not start the engine, but only started the two-stroke engine in the ”bullet” cone in the middle of the engine's air intake.

The jet engine cannot be turned on its own. It must be driven by other power to reach a certain speed before it can be started. The current way of starting the jet is to use this special starting engine.

During the roar of starting the engine, the fuel pump began to pressurize, and the highly efficient aviation fuel was pumped to the six independent combustion chambers in the middle of the engine. At the same time, the 8-stage axial compressor in the engine was rotating and began to continuously Agitate the air into the combustion chamber.

When the engine had been driven to three thousand revolutions per minute, Kröger toggled the ignition button. In an instant, fuel was ejected from the independent combustion chamber. When the spark plug ignited, it burned. High temperature and high pressure gas, Push the unipolar turbine behind, and then spray out from the tail nozzle.

The ground crew was observing from a distance, the inner flame was orange red, and the outer flame became lighter. This is normal.

”Left hair is normal.” The ground crew shouted on the radio.

Kröger continued to start the right engine. A few minutes later, the engine on the right also burst into flames, and both sides started normally!

After receiving the confirmation from the ground crew, Kruger observed that the various instruments were normal, and then pushed the throttle sticks on both sides forward together.

The turbojet engine made a peculiar whistle. This sound made Klergel very intoxicated every time. He stared at the dashboard in front of him. The engines on both sides had reached the maximum speed of 9,000 rpm. At that time, the thrust on both sides exceeded one ton.

The whole plane was shaking, it seemed to be able to fly at any time.

Kröger relaxed his breath and shouted on the radio: ”Lightning Seven, request to take off.”

”You can take off, I wish you all the best.”

Klegel released the brakes and simultaneously pressed the four linkage buttons on the side of the operating lever together.

Below the wings on the outer side of the engine, there are two external hanging points, which are specially prepared for the Walter 109-500 take-off booster rocket.

As he pressed the button, the booster rockets ignited violently. Each booster rocket can burst out 500 kilograms of thrust. With two engines, a total of four tons of thrust can propel an eight-ton aircraft. Glide quickly on the track.

(Explain, the unit of force should be Newton, and ton is the unit of mass, but in many terms, I like to use how many kilograms of thrust to express. In fact, it should be multiplied by 9.8 to get the thrust value. It is not a layman in East China. That’s what everyone calls it.)

The lightning bomber began to roll on the runway, faster and faster.

In fact, even if there is no booster rocket, the lightning bomber can fly, but that requires a longer runway. After all, the jet needs a very high take-off speed, and the addition of booster rockets can effectively shorten the take-off distance of the aircraft. , Reduce fuel consumption and extend the range of the aircraft.