Looking at those slightly questioning and questioning eyes, Roland thought that this guy looked quite cute when he was blamed...... When she is in a good mood, she rarely calls her brother, and she will only talk about her brother in front of outsiders or when she is annoyed, which makes people feel that they can't help but want to deliberately tease her.

Ahem, no, now is not the time to think about that...... He coughed lightly and pulled his thoughts back on track, "The plane is not fully finalized yet, so every part has to be made by Anna and Zoroya. Now that the war on the front lines is imminent, you should know better than most how heavy the work is on their shoulders. Although I completed the design drawings early, I couldn't have done it alone. ”

With the extension of the railway, the interval between the Seagull and the front line has also changed from the first day or two to once every three or four days - not that Tilly and Wendy want to be lazy, but that a lot of combat preparation work is difficult to complete in a day, and there is no other way than to extend the stay.

As the pick-up and drop-off person, Tilly naturally knows how hard everyone is, and many girls fall asleep directly on the seat as soon as they get on the plane, for which the Seagull has also changed the more comfortable cushions and backrest. And defeating the devil and retaking the fertile plains is the most important goal at the moment, as soon as she mentioned this, her momentum suddenly decreased a little, and the body propped up on the desk also shrank back, "I also want to start the test flight as soon as possible, so that the air knight can come in handy......"

"Don't worry, in fact, the aircraft body has been basically completed, only some auxiliary parts are missing and have not been installed, so you just need to be patient——"

"Wait," Tilly interrupted, "what does ontological completion mean...... You can fly without those parts, right?"

"Uh," Roland realized that he had slipped out, and the Fifth Princess, who was no longer the layman who knew nothing about airplanes, and it was not easy to get by. “...... It's not that it can't be done, but it's fundamentally different from the Seagull after all, and if there is a problem, Wendy can't help fix it, and if it makes a mistake, it ......"

At this point, he gradually closed his mouth.

Because Tilly's sparkling eyes speak for themselves.

He really couldn't refuse such a look.

The nightingale behind her was already laughing softly, and she seemed to be very happy to see him speechless lately.

After staring at each other for a long time, Roland let out a long sigh, "Okay, I'll inform the people at the airport to get ready." ”

"That's right. Tilly's raised eyebrows finally lowered, and the corners of her mouth showed irrepressible joy.

"But remember, if you have an accident during a test flight, or if you lose control, you have to abandon the plane as soon as possible, understand?"

"Of course, because airplanes can be rebuilt, and pilots like me are precious," Tilly said triumphantly with her hands on her chest, "That's what you think in your heart, right?"

......

Neverwinter Flight Base.

It started out as a simple concrete open field with nothing but two runways, but now it is a veritable flight training ground and the prototype of the future Air Force Academy.

In the walled test site, a gleaming silver plane was pushed out of the hangar by workers and placed at the end of the runway.

Tilly took a deep breath, "That's ...... A ...... built just for me"

"Well," Roland nodded, "the Unicorn." The main power is provided by a five-cylinder star-piston engine, which can theoretically make the aircraft travel at speeds of more than 150 kilometers per hour, and even the fastest dinosaurs cannot catch up with it. ”

As the first human-built autonomous powered vehicle of the era, it was very different from the Seagull in appearance – most notably its massive head. In order to fit the engine, the nose had to abandon the streamlined aerodynamic appearance and make it look like a less aesthetically pleasing iron barrel, which looked as if it had been flattened.

The second is the two-bladed propeller in front of the nose, which is also a component that is not available on the Seagull - because it is the first practical piston engine, even with a lot of reference to the data, the finished product is quite conservative. In the case of low power, double wood pulp can meet its requirements.

Finally, the fuselage, because the Unicorn is essentially a fighter jet, is less than nine meters long, almost half the length of the Seagull, and the fuselage does not need to wrap passengers, so it looks quite small. However, the interior of the fuselage is much more complicated, in addition to the control system, there are more power components such as fuel tanks and fuel pipes, and space for a second seat and fire system is reserved.

"Unicorn...... You'll come up with good names once in a while. Tilly impatiently walked over to the biplane, quickly noticing something unusual in the cockpit, "Were the missing accessories originally installed here?"

The place where it was supposed to be the dashboard was still two hollows, and even if she hadn't seen the actual thing, she could guess that it wasn't finished yet.

"That's right," Roland nodded, "these parts are mainly for speed and altitude, and they are also the two most important parameters when flying. In the past, Wendy controlled the attitude of the plane, and it didn't matter if she didn't need to know this, but if you want to really fly into the sky with the power of the controller herself, you must always pay attention to the changes in these two parameters......"

"Don't worry, I may not be able to build airplanes, but in terms of piloting skills, I am definitely the first in Gray Castle. Confident, she climbed into the plane and sat in the driver's seat.

Theoretically, the Unicorn only has one more throttle valve than the Seagull, and the rest of the joysticks are all in the same position, and Tilly has practiced on the simulator many times before that, so nothing should go wrong. But this is a completely new aircraft, with a very different weight, agility and speed, and the mechanical systems are not fully validated, so it is not surprising that anything goes wrong.

Roland's worries also stem from this - if he crashes just after takeoff, even if Tilly has extraordinary operational ability, I am afraid that he will not feel anything. At first, he wanted to build a few more prototypes, so that she could get familiar with the new body while crashing.

But at this point, it's impossible to get the other party to turn back.

"Your Majesty, everything is ready. The hangar supervisor reports.

"Let's get started. Roland turned away from the runway.

"Yes!"

With the order given, two workers inserted the crank into the engine's starter and spun it vigorously.

Obviously, the test is the latest weapon of mankind, but this scene is the same as a walk-behind tractor when I was a child...... Roland couldn't help but say in his heart that when the batch equipment was ready, he would have to get the battery and auxiliary motor out no matter what.

"Bang, bang, bang-" When the piston gradually accelerated back and forth under the action of external force, a worker closed the pressure reducing valve, and the oil vapor in the cylinder was instantly compressed, and the engine erupted into several noisy explosions, and black smoke rose at the same time. Soon the explosions became a series of explosions, and eventually turned into a deafening roar.

The two blades turned into a round of impermeable circular light and shadow, dragging the light body and gliding - just thirty seconds later, the Unicorn raised its nose and soared into the air, rushing into the blue sky to the surprised gaze of everyone on the scene!

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