The Shi Feixuan I met in the morning was not too concerned by Kou Zhong or Wu Xian. After all, neither of them knew what the specific purpose of the other party was. In addition, they would soon arrive in Jiujiang, so at this time, they could not do anything except continue boating down and strive to arrive in Jiujiang as soon as possible, and then return east along the river to Yuhang.

In the Shuanglong Army base in Yuhang, taking advantage of the lack of return of Kou Zhong's Shuanglong Army's general, Xu Ziling and their military advisor Lu Miaozi, then specially invited their little master Anne to go to a Shenji Army barracks outside Yuhang City, located in a hidden valley.

This was originally a workshop for the weapons and crossbows of the Shuanglong Army. Although the Dongming Sect has been providing high-quality weapons to the Shuanglong Army and the prices are fair, those weapons are commodities after all, and the prices are relatively too expensive. Therefore, after establishing the Shuanglong Army and controlling Yuhang County, they set up such a workshop in this place.

When he returned with the disassembled planes a few days ago, Xu Ziling expanded the workshop and named it the "Shen Ji Feitian Camp". At the same time, he dispatched and arranged three thousand elite Shuanglong Army troops stationed in Yuhang to defend outside the valley to ensure that this important camp is foolproof.

Of course, none of the above is important. What is important is: After a round of actual combat and several flight tests, Xu Ziling and Lu Miaozi discovered that the wooden aircraft Annie took out still has many shortcomings and limitations.

For example:

First of all, it is the wear problem of the wood turbine, iron-packed gears and transmission chains.

After all, the plane is made of wood, and the power depends entirely on people to pedal. Even if wood with toughness and moderate hardness and strength is used, the wear of the gears and chains is still very serious. Basically, it is necessary to replace it once or twice. Otherwise, once the transmission belts break or fail, the wooden plane will become a glider and lose its power directly, and have to make an emergency landing, or simply fall and fall down and fall?

That is a very, very serious problem and must be solved as soon as possible!

Secondly, it is the personnel configuration of the aircraft.

For the Shuanglong Army with poor background, even if there are 100,000 people (called 200,000), there are not many second- and third-rate masters who can make a move, and first-rate masters can even count them with one hand. Unfortunately, this kind of aircraft consumes and relies heavily on martial arts masters, especially those who have deep internal strength that can continuously step on the pedal and keep the propeller rotating at high speed!

Although, the wooden aircraft is indeed very superior in performance, and it also adopts a double-wing double-person configuration and can be replaced with human pedals during cruise. However, even if you can take a rotational rest, if you want the propeller to maintain a high-speed flight posture, you need at least a martial arts master to use his energy to step on his mission. The consumption of internal strength and physical strength is very large, and ordinary people cannot handle it at all.

If you want to accelerate dive or take off, let alone take off, it will definitely require two pilots on the plane to step on their feet at the same time. In that way, the requirements for the pilot will be high, whether it is physical strength, body shape, weight or internal strength.

So, in this way, the dilemma of shortage of pilots of the Shuanglong Army, that is, martial arts masters, is reflected.

Moreover, Xu Ziling dared not draw too many from the army, because those masters are the backbone and senior leaders of the army. Once too many are drawn, the entire Shuanglong Army will probably collapse first.

Finally, it is the load problem.

Since two-person driving is required, there are not many oil tanks that the aircraft can carry, which means that the take-off weight is severely limited. Even if it is re-adjusted, it is estimated that it can barely bring ten clay pots to the sky together, so Xu Ziling wanted to discuss with Lu Miaozi to see how to solve this problem.

“Um…”

"I have really thought about it."

Lu Miaozi, who is knowledgeable and talented and also considers himself a master of mechanical skills, pondered for a while, then stroked his beard and spoke, looking at the wooden biplane placed in the hangar of thatched shed and asked:

"If improvements can make their wings longer, larger and more..."

"Will there be greater takeoff weight?"

Of course, he was not asking Xu Ziling, but the careless little girl next to Xu Ziling who was dozing boredly on a stool.

You know, Lu Miaozi was originally planning to die in that peaceful nest, and he didn't plan to come out, but after contacting the books Annie and Annie gave him and seeing all kinds of wonderful ideas, he suddenly felt that his knowledge should not be buried easily?

In addition, after meeting Kou Zhong and Xu Ziling, they used the true energy of the Longevity Art to help him heal his old wounds. Some of his enemies seemed to no longer seek trouble for him. Finally, he gritted his teeth and accepted the invitation from them to return to the world, preparing to show his ambitions in this mechanism.

"Master!"

"What do you think?"

Hearing Lu Miaozi's words, Xu Ziling felt it was feasible, and then hurriedly looked at Annie beside her and humbly asked for advice.

“??”

(???.???)??????

“Change the wings and quantity?”

(°〼°〃)

Obviously, Anne was a little shocked by Lu Miaozi's magical brain circuit.

You should know that the wooden plane was perfectly designed by Xiaobai robots based on the limits of processing technology in this backward era and the "special products" of "martial arts masters". They used the design and environmental simulation of the intelligent brain in the Keplu Star Zone, and all aspects have been perfected.

Although it is quite capable that Lu Miaozi, who is known as the master of mechanical skills in this world, can produce more than a dozen finished products in a standardized manner with design drawings, it is obviously impossible to change the design drawings based on these alone.

"No!"

ε=(′ο｀*))) Alas

"That's already a perfect design for aerodynamic layout, lift and thrust. If you make random changes, it may not be able to fly!"

(O ^~^ O)

So, Anne had to tactfully deny the naive idea of ​​enlarging and increasing the wings that the other party took for granted.

“…”

(??ω??)

After saying that, Annie aimed at the grass shed hangars next to her and the planes under maintenance in the hangar.

With her efforts, the world finally became a little strange. When she thought of the kind of game of riding and chopping on the ground, the scene of planes roaring and throwing oil tank bombs appeared in the sky, she couldn't help but feel proud.

(…)

(●￣?￣●)

"Is it really not feasible?"

"But……"

"I think I can still try it, but it won't matter if I try it."

Although Lu Miaozi didn't know what a wind tunnel experiment was, nor did he know the subtle relationship between aerodynamic layout and lift and thrust, he already knew after many practices that at the same speed, the greater the wing, the greater the lift!

In that case, wouldn’t adding and expanding the wings perfectly solve the problem?

Besides, even if it fails, it doesn’t matter. Anyway, it’s made of wood, and it’s not a rare material. If it hits and destroys, it’s just cutting a few big trees to cut them down.

"Old Lu, don't hurry to improve things!"

"at the moment……"

"Zi Ling thinks that the failure rate must be solved as soon as possible. Those gears are too easily worn out. They need to be replaced after flying once or twice. How to solve this problem?"

Yes, you can put the load problem first, but the failure rate and loss are something that Xu Ziling can't stand.

In his opinion, although those human-powered wooden aircraft are very good, they are prone to failures and large losses. Especially the gears and transmission chains are very easy to wear and break, and often require disassembly and maintenance once or twice, which is very unfavorable for flight and training!

"I've thought about this question!"

"perhaps……"

"You can use other materials to make gears, such as iron wrapping wood, or just make them all of them with good fine iron?"

"Of course, fine iron is difficult to process, so it should be OK to replace it with bronze, right?"

"only……"

"I'm afraid I can't change it in a short time. You said that Kou Zhong is planning to use troops to the State of Chu as soon as he comes back. It's probably too late to change it at this critical moment."

"I can only make more standard tools and let the carpenters make more accessories as they are. Then you can handle more and more frequent maintenance of the plane."

Those problems are not big in Lu Miaozi's opinion. After all, the machine called "aircraft" is already a supreme masterpiece of the world and can make people complete the feat of flying. That is the power that only ghosts and gods possess!

Now, although there are a little flaw, it is acceptable and not concealed by the flaws.

After all, the way of heaven is lacking. The number of Dayan is fifty and nine out of 40. The way of art and number is still like this, and the number of mechanisms cannot be perfect.

"Then we can only do that first!"

"but……"

"Given that it may also fail during flight, can Master Lu do the 'paracht' as mentioned by Master?

Thinking of his last time he went to pursue the "Three Major Bandits" with Kou Zhong and finally fell down due to exhaustion, Xu Ziling hurriedly raised another question.

"parachute?"

"That's easy!"

"Tomorrow, I will find some women and children from the craftsmen who can do needlework and have nothing to do to guide them."

"The left and right are just a little slow down and the momentum when falling from the sky. Even second and third-rate martial arts have buffers and can be easily dealt with with light skills, and it is not hindered."

"In my opinion, it's enough for one person to carry an umbrella when he went to heaven, so you are troublesome."

Shaking his head, Lu Miaozi didn't take the parachute too seriously.

In his opinion, that thing is completely unnecessary. Even if the plane suddenly fails during flight, such as the gear breaks or the chain breaks, it can use light power to jump away from the plane before it is about to crash, and then use internal force to wrap clothes as buffer to land with ease. Where can I need a parachute?

Anyway!

In his opinion, as long as he is not a fool, there is enough time to deal with falling from such a high place. He fell several times during the test flight, but as a result, he still successfully landed safely with his light skills?

“…”

(￢д￢.)

"People think you should think about how to do the production of the aircraft and the assembly line factory!"

(?????????)

"If you randomly change parts and optimize aircraft, do you better not be too anxious?"

ε=(′ο｀*))) Alas

After giving the two of them a little contemptuous look, Anne said this boringly.

To be honest, it was not Annie who underestimated them, but when the materials science foundation was almost zero, the two of them planned to change the perfect design scheme given by their own novice robot. At that time, if there is a more serious problem, they will know that they will be in trouble!
To be continued...