An hour later, Lynn, who had stepped into the Academy of Magic, was warmly welcomed by Vice Dean Tim, and after Vittorio left, he took over as the Headmaster.

When he learns that Lynn is looking for Dennis, Tim is even more bitter.

"Speaker Lynn, you'd better persuade Master Dennis by the way this time, his propeller plane was doing a good job, and the upper limit of the maximum speed was constantly mentioned, and the results were very gratifying, the maximum cruising speed was almost close to four hundred kilometers per hour, but I don't know what was crazy and suddenly turned around to study an explosive propulsion device......"

Originally, the Alchemy Research Institute was supportive of Dennis's new attempt, but Dennis's explosive propulsion device was exactly as its name suggested......

Not a single day in the past year has been spent in the research room assigned to Dennis, from the sound of explosions to the destruction of the laboratory.

Although it is not uncommon for accidents to occur during the study of magic, this is also too frequent!

The constant noise seriously disturbed the research of the rest of the wizards, not to mention, personnel damage was also a big problem, there were more than sixty official wizards injured alone, and the number of apprentices exceeded 100......

You must know that the kingdom is short of manpower now, and it is eager to break every official wizard in half to use, many people wear many hats, and a large number of wizards are injured and affect the progress of a project.

Listening to Tim's constant complaints, Lynn was also quite surprised, even if he was studying jet planes, it would not be such a terrifying frequency of explosions, and now even he was a little unsure of what Dennis was doing.

It was a large workshop, very rudimentary, with only one frame there - according to Tim, there was no need to do too much decoration, as long as the walls were strong enough, and it didn't matter if they were built too beautifully, and they might blow up one day.

Tim's idea was undoubtedly insightful, because as soon as the two of them reached the door of the workshop, a violent explosion came from the inside, and the door exploded directly, and they were greeted by a strong blast shockwave.

A sharp piece of metal was mixed in with the shockwave, speeding towards them at great speed, but the moment it reached them, the speed of the metal fragment suddenly changed from extremely fast to extremely slow, and finally hovered in the air.

Lynn reached out and took the fragment in her hand, then stepped inside.

The interior of the entire alchemy workshop looked smoky, and the surface, walls, and ceiling were already potholed under the influence of the aftermath of several explosions, and the original appearance could no longer be seen.

"Sure enough......" Tim shook his head as Lynn stepped in.

Had it not been for Dennis's outstanding contribution to the improvement of the steam engine, the internal combustion engine, and the propeller warplane, which gave many lawmakers a glimmer of hope for his new achievements, this dangerous research and development project would have been halted long ago.

Due to the explosion that just happened, the entire alchemy workshop was in chaos, but fortunately, there were not once or two accidents, and no one was injured this time.

"Speaker Lynn?"

An alchemist soon spotted Lynn and Tim entering the door, and when he learned of their intentions, he immediately informed Dennis to go.

The two didn't wait long, and Dennis, who received the report, soon led people over, everyone was disgraced, but their expressions were extremely excited.

Dennis, who saw Lynn and Tim, pulled the sleeves of the two of them and said with great joy. "Hurry, hurry, you're just in time! My research was successful, my research was successful! ”

Tim, who was about to make a mocking speech, swallowed the words that came to his lips, and turned into a look of surprise, could it be that Dennis really studied that explosive thruster?

Delighted, Dennis led the two to the interior of the workshop and showed them his new work, a thruster about two meters long and forty centimeters in diameter.

It's just that the middle half of the section is rolled outward like a twist, and the explosion just now obviously came from here!

"That's what you call success?" Tim said with a strange expression, pointing to the badly damaged thruster in front of him.

"Of course it's a success, you know, this time it's been running for a minute, a full minute!" Dennis's pitch rose several degrees, and his excited voice trembled.

This time it didn't explode directly, but it ran up, a breakthrough from zero to one, indicating that they were extremely close to the finished product!

"I think it's still a long way off." Tim was speechless, what was a minute enough? This is simply a waste of precious human and material resources......

Dennis ignored Tim's meaning, and while directing the halfling and the alchemist to inspect the thrusters and summarize the experience of failure, he endlessly explained to Lynn the design concept of the new thrusters.

Conventional propeller aircraft convert engine power into propulsion, and as the propeller rotates, the blades push a large amount of air backwards, creating a forward force on the blades......

However, Dennis decided that relying on wind propulsion was too inefficient, and as the speed increased, he also vaguely sensed the limit, so he decided to turn to a newer propulsion device.

And this time he wanted to take advantage of the shock wave generated by the explosion!

This is not impossible, in fact, they have made extensive use of this power in weapons, such as bullets, artillery rely on the impact force generated when gunpowder explodes to achieve high-speed attack on the enemy, and even the internal combustion engine relies on the internal combustion reaction to provide power.

This fully shows that the explosion is the first driving force!

"You're crazy, Dennis, the fighter plane that comes out of this is a walking bomb! It might be more appropriate to call it a suicide flying machine! Tim rolled his eyes.

"As long as there is a material that is strong enough to withstand high temperatures and impact forces, coupled with a reasonable structure that maximizes this impact force, it will have no problems!" Dennis said firmly.

His experiments undoubtedly verified this, and the propulsion provided by the propeller was simply weak compared to the violent impact force of the explosion!

Dennis pointed to each part of the thruster and introduced it one by one.

The interior of this explosive thruster contains three gas chambers.

The first gas chamber is burned with an alchemy circle that transforms oxygen with magical power, which will continuously produce pure oxygen, and the second gas chamber is responsible for transporting pure hydrogen, which will be sent together into the third gas chamber at a steady speed through the pipeline, and then mixed and detonated, and finally the high-temperature and high-speed explosive air flow will be sprayed from the back end of the thruster to produce terrifying thrust......

"I've experimented with oxygen and hydrogen alone that don't produce combustion reactions, so the first and second gas chambers are safe, and the gas-filled pipes block the way back from the blast stream, so that it can only be ejected through the rear end of the vent......

Dennis elaborated on his design philosophy in detail and quickly, then turned to look at Lynn and said triumphantly.

"How? Speaker Lynn, how is this explosive thruster I developed? ”

"Well, all I can say is ...... Simple, straightforward, and straightforward! After listening to Dennis's description, Lynn forced these words out of his mouth.

Dennis's design principle is actually only four words - force bricks fly!

It's a little too simple!

When he first designed the aircraft, he considered the propeller fighter instead of the jet fighter because the jet engine was very difficult to make.

Before arriving at the Alchemy Research Institute, he was still a little puzzled, how Dennis solved so many problems a year ago, and the result was obvious, Dennis did not intend to solve these problems at all, and the things he created were between jet engines and rocket thrusters.

It's not impossible to use this thing, but as Dennis himself said, how to make a material that can withstand heat and impact is a huge problem.

The power of the hydrogen-oxygen detonation is terrifying, and its danger can be seen from the extent to which this alchemy workshop has been destroyed.

Lynn's compliment obviously made Dennis extremely happy, it was the joy of the achievement being recognized, not to mention the recognition of the magic star.

A group of alchemists, Lydia, Darren and dozens of other halflings were nervously carrying out the final debugging and testing work, and reported from time to time.

"Everything is normal with the hydrogen and oxygen mixed delivery array!" "There are no problems with the first air compartment either." "There was some damage to the inside of the second gas chamber, and it was possible that metal fragments from the explosion had entered the gas chamber......"

"The inner wall of the metal here is seriously damaged, we have used the strongest metal, and we have also blessed the fire protection array, but I didn't expect it to be able to withstand the high temperature and pressure caused by the explosion......" Lydia raised her hand high, her originally fair cheeks were covered with oil and dust, and it looked black.

"Looks like the problem of the last failure should have arisen here!" Listening to the reports of the alchemists, Dennis nodded incessantly, and then continued. "Then this time reduce the fuel delivery speed by 30%, adjust the proportion of hydrogen and oxygen mixed combustion, and try again, we are very close to success!"

Lydia nodded excitedly, although Dennis had said similar things hundreds of times in this time, but the experiment just now was different from the previous failure, because the explosive thruster was indeed working.

Even though it only exploded again in just a minute, at least it saw the dawn of completion!

Dennis took a deep breath and secretly prayed that this time he would succeed, which was the key to the development of the fund and the explosive propulsion in the future......

With the joint efforts of a group of halflings, the cylindrical metal thruster, which was more than two meters long, was quickly reassembled, and then ten alchemists used magic to connect at the joint, put counterweights, and attach the wings, and a most rudimentary mimic flight device was completed.

"The three hundred and sixty-seventh experiment, ready to begin!" Dennis said with great anticipation.

Hearing this, a group of halflings who had originally gathered near the thrusters retreated to the protective wall fifty meters away as fast as possible, and even Lydia, who had become a wizard, and the rest of the alchemists retreated ten meters and blessed themselves with several protective spells.

Dennis was very confident in this experiment, and with the means of self-preservation, he did not move at all.

Lynn didn't back down either, and even if there was an experimental accident, it was impossible to hurt him.

On the side, Tim wanted to hide, but seeing that Lynn and Dennis didn't move, he had to stand where he was, secretly comforting himself that he was a great wizard and should not be blown up......

After everyone was dodging, Dennis pressed the start button, and as the alchemy circle in the thruster was activated, a large amount of magic power was converted into a specific ratio of hydrogen and oxygen, which was poured into the third cylinder and instantly detonated.

An eardrum-shattering roar resounded in the workshop, and the entire thruster shook violently, followed by a hot tongue of fire gushing out from the end of the thruster.

Under the strong impact of the explosion, even the device used to fix it below was creaking, and one of Tim's hearts was directly raised to his throat, for fear that the thing would explode directly.

Lynn's realm had also been expanded, ready to deal with the worst-case scenario, and Lydia and the others were also staring intently at the constantly trembling thrusters.

One second, ten seconds, thirty seconds, sixty seconds......

A minute passed quickly, and although the metal on the outside of the thruster had turned red in the scorching heat, the expected explosion did not occur!

"It worked, we really made it!" An alchemist immediately shouted, his face filled with ecstasy.

The rest of the wizards were also excited, and Lydia cheered with joy.

Dennis was undoubtedly the most excited one, the idea of using the blast wave to propel forward had long been in his mind, and now after a full year and a half of hard work, he finally turned this original idea into a reality!

"What's the speed? What is its speed? Dennis pulled past the alchemist in charge of the inspection and asked eagerly.

A thrust detector is installed underneath the thruster, making it easy to determine the strength of the thrust provided by the thing.

"That's about 700 kilometers per hour!" The alchemist's face was full of surprise.

"It's doubled...... It's doubled! Dennis's left fist slammed into his right palm, muttering excitedly.

Tim's eyes were round, full of incredulity, and Lynn was also amazed, he originally thought that it was too early to make jet planes, but now Dennis taught him a lesson, telling him with practical actions, what is called using magic and alchemy to solve problems!

(End of chapter)