Be A Lord Starting Today

In this constant stalemate, the guards led by Francis withstood the first day's attack.

Seeing the templars and mages retreating from the city wall, Francis did not heave a sigh of relief.

Because he knows that this war has just begun.

In less than a month, facing the attack of the Templars, he still needs to persist for less than a month.

As long as he persists, he will win.

Slanting Moon City.

While the courier sent by Francis was still on the way, Don Juan entered my world on the side of Slanting Moon City, and entered a test site hundreds of miles away from the smelter cluster and the redstone machinery workshop cluster.

The experimental site of the Mechanical Engineering Group.

"Okay, let's experiment with the power of this propeller engine."

Engineer Smith held a notebook holder and a pencil in his hand, and was recording something against a steel creation in front of him.

This steel creation is not small as a whole, with a height of about 1.5 meters and a density of 2 meters.

This steel creation is square, with a pair of propellers facing the front.

This is exactly the redstone engine of the aircraft built by the mechanical engineering group.

After Don Juan told Smith the principle of the aircraft, the mechanical engineering team went to conduct the experiment.

In fact, the principle of the aircraft is also very simple.

The take-off of an airplane depends on the pressure difference of the air flow velocity between the upper and lower sides of an airplane.

And this pressure difference is generally above and below the wing.

The top and bottom of the flat wing will produce different air flow speeds under the action of the engine propeller.

The air over the wing moves faster because drag puts less pressure on the top of the wing.

On the contrary, the air flowing under the wing is slow, and it will exert a greater pressure just like the top of the wing.

When these two pressures finally cross flow at the rear end of the wing, a pressure difference will appear at this time, and then the most important thing for the aircraft to be able to fly off the ground in the early stage of flight will appear, that is, the lifting force, which is also the upward force. The thousand five.

Up and down, two different pressures of different pressures are intertwined, forming a pressure difference behind the wing, and then generating a lifting force. At this time, due to the existence of lift, the aircraft can leave the ground for flight.

The direction of gravity is opposite to that of lift. As we all know, gravity is a downward force produced by the influence of the earth's gravity.

The gravity of the aircraft is affected by the weight of the aircraft itself and the amount of fuel it carries.

The pull produced by the engines propels the aircraft forward through the air.

Generally speaking, the greater the output power of the engine, the greater the backward thrust generated, and the faster the aircraft will fly.

When the aircraft is flying in the air, it will be hindered by the atmospheric molecules in the air, and this obstacle will form a resistance opposite to the direction of the pulling force, and this force will also limit the flight speed of the aircraft at the same time.

That is to say, if the flight speed that the theoretical engine can achieve is limited by various situations in the actual flight into the sky, the flight speed of the aircraft will be much lower than the power of the real engine.

Even calm and windy, even headwind and tailwind will affect the take-off of the aircraft.

If it is against the wind, then when the aircraft takes off, the air flow speed above and below the wings will be accelerated, so the distance that the aircraft needs to roll and take off on the ground will be shortened, and it can be lifted into the air with a shorter distance and less time.

But if there is a tailwind, the plane will take off slower than usual, and the distance on the ground will be relatively longer.

The principle of the aircraft is that simple.

Although the principle of an airplane is simple, it takes a lot of effort to manufacture it.

Don Juan stood aside and looked at a three-winged wooden plane on the concrete road not far away.

This wooden plane looks like a cross from the sky.

Three huge polished identical wooden boards are arranged horizontally in parallel in the middle and bottom, and then the main body of the aircraft is placed vertically in the middle of the bottom wooden wing, and the upper and lower wooden wings clamp the main body of the aircraft, just like A sandwich was average, with a third wing on top.

The reason why it is three-winged is also more sophisticated.

Many experiments have been done before, because of the size of the redstone engine, the lift of the aircraft is not enough for take-off, and the biplane, or even the triplane, can maximize the lift due to its structure.

Therefore, the power requirements for the engine are not as harsh as those of a monoplane.

Although the mechanical engineering team can make the redstone engine achieve the purpose of increasing power by increasing the function of redstone.

But in that case, the size of the engine must be greatly modified.

But the aerodynamic design of the huge aircraft, every part of the aircraft has to be designed perfectly, which is too difficult.

Therefore, the design of the earliest human triplane was adopted.

And today is the day when the engine is installed.

After some work by the mechanical engineering team, this not small engine with a power no stronger than that of an armored combat vehicle was installed on a triplane wooden aircraft.

At this time, Don Juan stepped forward wearing enchanted armor. He looked at Smith, who was a little surprised, and stopped the test pilot who was about to board the plane to test the ability to lift off, and said: "I'll come, my armor enchant can guarantee me Landing at a height of less than 100 meters is safe."

"I know that for the first time to test the aircraft, it will not be too high if it successfully flies into the sky, a distance of one or two hundred meters, and as I said."

"At a distance of one or two hundred meters from the ground, the test pilots may not be able to parachute in time under panic, which will cause casualties.

"But I won't, I can assure you I'll be fine."

Don Juan said.

"this."

Smith hesitated very much. (Qian Qian is good) Tang Juan is very aware of the importance of Slanting Moon City, although he knows what Don Juan said is true, but for the sake of Don Juan's safety, he is very reluctant to let Don Juan go up there.

"This is an order."

Don Juan took a deep breath and said.

"This, okay."

Under Don Juan's repeated insistence, Smith could only compromise.

Finally, under Smith's repeated insistence, Don Juan put on the parachute and sat on the cockpit of the fighter plane.

Before coming again, Smith had explained to Don Juan how this aircraft operates.

"Ready, engine on, ready to take off, clear ahead."

Hearing the voice of Smith shouting not far away, Don Juan took a deep breath, and finally, once, traveling to this world until now, he finally boarded the plane once.

"First test flight, here I come!"

Don Juan stretched out his hand and started the engine!.