Looking at those slightly slightly questioning and questioning eyes, what Roland thought was that this guy looked quite cute when he blamed him... He rarely called his brother when he was in a good mood, and he would only keep his brother in front of outsiders or when he was upset, which made people feel like he wanted to deliberately tease her.

Ahem, no, now is not the time to consider this issue... He coughed lightly and pulled his thoughts back on track. "The plane has not been completely fixed yet, so each part has to be made by Anna, Soloya and others. The frontline war is imminent, and you should know more than most people how heavy the work they are doing. Although I completed the design drawings very early, I can't do it alone."

As the railway was extended, the interval between the Seagull and the front line also changed from one or two days to three or four days. It was not that Tilly and Wendy wanted to be lazy, but that a lot of combat preparations was difficult to complete in one day, and there was no other way except to extend the residence time.

As a pick-up user, Tilly naturally knew how hard it was for everyone. Many witches fell asleep on the seat as soon as they got on the plane. For this reason, the Seagull had also replaced more comfortable seat cushions and backrests. And defeating the devil and regaining the fertile soil plains is the most important goal at present. When she mentioned this, her momentum suddenly decreased a few points, and her body on the desk also shrank back. "I also want to start the test flight early so that the Sky Knight can come in handy..."

"Don't worry, the aircraft body has been basically completed, and only some auxiliary parts are missing, so you just need to be patient-"

"Wait," Tilly interrupted, "the real body is completed, that means... it can fly without those parts, right?"

"Uh," Roland realized that she had missed her mouth. At this time, the Five Kings Girls were no longer the layman who knew nothing about planes. It was not easy to get through the test. "...It's not that it can't be said, but it is essentially different from the Seagull after all. If there is a problem, Wendy can't help correct it. If the operation is wrong..."

Speaking of this, he gradually closed his mouth.

Because Tilly's shining eyes say it all.

He really couldn't refuse such a look.

The nightingale behind her had already chuckled softly. She seemed very happy to see him speechless recently.

After looking at each other for a long time, Roland sighed, "Okay, I'll inform the people at the airport to prepare."

"That's all." Tilly finally put down her eyebrows, and an uncontrollable joy appeared on the corner of her mouth.

He called out, "But remember, if an accident occurs during a test flight or loses control, you must give up the plane as soon as possible. Do you understand?"

"Of course, because the plane can be rebuilt, but a pilot like me is extremely precious," Tilly said with her hands on her chest, "You think so, right?"

...

Winterless flight base.

At the beginning, this place was just a simple cement open space, with nothing but two runways, but now it is a veritable flight training ground and the prototype of the Air Force Academy in the future.

In the test flight field closed by the wall, a silver-shining plane was pushed out from the hangar by workers and placed at the end of the runway.

Tilly took a deep breath, "That's... specially created for me..."

"Well," Roland nodded, "Unicorn. The main power is provided by a five-cylinder star piston engine, which theoretically can make the aircraft speeds more than 150 kilometers per hour. Even the fastest terror beast will not be able to catch up with it."

As the first autonomous powered aircraft made by humans in this era, it has a huge difference in appearance from the Seagull glider - the most obvious one is its huge head. In order to install the engine, the nose can only abandon the streamlined aerodynamic appearance and make it into a less beautiful iron barrel shape, which looks like it has been flattened.

The second is the twin-blade propeller in front of the nose, which is also a component that is not available on the Seagull. Since it is the first practical piston engine, even if it is referenced to a large amount of data, the finished product is quite conservative. With small power, the double wood pulp can meet its requirements.

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

"A unicorn... You can occasionally give some good names." Tilly couldn't wait to walk to the biplane and soon noticed something strange in the cockpit. "Did the missing auxiliary parts be installed here?"

The location of the instrument panel that should have been the dashboard is still two holes. Even if she has not seen the real thing, she can guess that the construction has not been completed yet.

"Yes," Roland nodded, "These components are mainly for displaying speed and altitude, and are also the two most important parameters when flying. In the past, Wendy controlled the attitude of the aircraft, so it was not necessary to know that these didn't matter, but if you want to truly fly into the sky with the power of the operator, you must always pay attention to the changes in these two parameters..."

"Don't worry, I may not be able to build an airplane, but in terms of driving skills, I am definitely the best in Grayburg." She climbed onto the airplane with confidence and got into the pilot seat.

Theoretically, the Unicorn only has one more throttle valve than the Seagull, and the other joysticks are even placed in the same position. Before this, Tilly had practiced on the simulation stage many times, so there should be no mistakes. But this is a brand new aircraft, with weight, flexibility, and corresponding speed that are very different from the latter, and the mechanical system has not been fully verified, so it is not surprising that any problems occur.

Roland's concern also stems from this - if it crashed as soon as it took off, even if Tilly had extraordinary operating capabilities, she might not be able to feel anything. At the beginning, he wanted to build a few more prototypes so that she could get familiar with the new body while falling down.

But it has come to this point, and it is impossible for the other party to turn back.

"Your Majesty, everything is ready." The Hangar Supervisor reported.

"Get started." Roland turned around and left the track.

"yes!"

As the order was issued, two workers inserted their hand crank into the engine starter and rotated it vigorously.

It was clearly testing the latest human weapons, but this scene was the same as the hand-held tractor when he was a child... Roland couldn't help but complain in his heart that when he was mass-equipped, he would have to get the battery and auxiliary motor out no matter what.

"Bang, bang, bang--" When the piston gradually accelerated and reciprocated under the action of external force, a worker closed the pressure relief valve, and the oil and steam in the cylinder was instantly ignited, and the engine burst out with a few noisy explosions, and black smoke rose. Soon the explosion sounded and connected, and eventually turned into a deafening roar.
Chapter completed!