Just as mechanized convoys are much slower than bicycle racing, the speed of infantry marches slower and slower as the number of people increases.

According to the statistics of the Prussian Hubert von Böhn's "Handbook of Staff Services for Officers of All Arms", an infantry division of 10,000 men marches 44 kilometers in 14 hours if the road is in good condition and 28 hours if the road is bad.

Cavalry divisions with artillery were also not much faster, taking 12 or 24 hours, respectively.

Based on this, for every 10,000 infantry or cavalry, the marching speed will increase by 3 or 10 hours, respectively.

The condition of the roads around Mexico City is not very bad, but it is not a complete road advance, in any case, in the subconscious of Nasan and Bazin, and even all the French officers, it will be at least the next day before Akito appears under Mexico City.

·

The sun was still high, and it was only 10 a.m. sharp.

His Majesty Napoleon III stepped on his favorite warhorse, an Anglo-Arabian horse of pure white without a hint of variegation, and led the Guards to the central streets of Mexico City.

A full 30,000 French soldiers, the most elite French soldiers, walked in a neat pace, showing the demeanor of a strong European army, making every Mexican who came to see off the king voluntarily or forced to tremble.

According to tradition, the infantry and cavalry were in the front, and the artillery was generally at the end of the ranks.

However, this time, in addition to the artillery at the end, there are also some things that resemble cannons in the infantry sequence.

This is a new weapon secretly developed by Napoleon III for the Ming Gatling chariot for a long time - Montigny pistol + reciprocating piston four-stroke gas engine chariot + 2 Charles heavy horses + pneumatic vulcanized rubber tires + 20 spare tires.

Just like the legendary 3000 that will kill you, the secret weapon that His Majesty is proud of has cross-era firepower and excellent mobility at the same time.

It is a terrifying killing machine that combines the best technology in Europe today, applying dynamics, fuel science, chemistry, engineering, biology, spare tire and many other disciplines.

Among them, the Montigny platoon gun consisted of 37 barrels, and the loading tool was a steel plate with 37 round holes, into which a bullet was inserted, and the position of each bullet corresponded to a barrel.

The firing mechanism is driven by a handle, and with a clockwise turn of the handle, all 37 rounds are fired in less than a second.

If the shooter wishes, he can also control the speed of the crank handle to fire each barrel sequentially at any speed. According to records at the time, the average rate of fire of a skilled Montigny platoon gun operation group was 12 salvos per minute, or 444 rounds.

In terms of performance, this thing is no worse than the ten-tube Gatling imitated by the Ming Dynasty, and even the shooting accuracy is still surpassing.

Even more surprising is the reciprocating piston four-stroke gas internal combustion engine.

Historically, this four-stroke engine was invented by the Germans the next year, in 1867.

In 1862, the French electrical engineer Lenoyan produced a two-stroke internal combustion engine, and has been stagnant.

But at this time, because of the defeat of the Japanese war, France became quite interested in the Ming-made engine, and even bought the Rising Sun car from the black market to disassemble it.

Obviously, the French's writing wheel eye skills are not profound, and they cannot imitate the advanced cattle civilian diesel engine.

However, they are not without harvest, the French's technology tree is 1 year ahead of schedule, and they can produce agricultural machinery engines that are comparable to those produced by the Ming Dynasty and supplied exclusively to Japan and the favorite of Japanese old farmers.

This kind of agricultural machinery engine, which led Japan on the path of agricultural transformation, was naturally very difficult to drive the Montigni platoon gun weighing 2 tons.

Therefore, it is still necessary to ask the heavy horse to come out to help the field.

As for the 20 sets of spare tires, it is naturally the tuition fee that French goods must pay when crossing the river with Ming sauce.

However, despite the problems of the secret chariot in one way or another, His Majesty Nasan was still full of confidence in it.

If the Europeans and Japanese of later generations were arrogant about China's technology honey and confident in their own technology honey was only the inertia of history, then in this era, the French firmly believed that their products far surpassed those of Asians.

Bang!

Just then, a secret chariot lived up to expectations and had a flat tire.

The Mexicans were startled and turned to see that the two closest French soldiers had been swept to the ground by the air wave.

And the red and blue military uniforms on their bodies have turned into beggars' shirts one by one.

Several well-trained military doctors carried them down, and the French military music was played, and the marches followed, except for a group of engineers who were busy changing tires, and the whole team continued to move forward as if nothing had happened.

It was not until 11:10 a.m. that the French army finally left Mexico City with the Mexicans seeing them off, and continued to march towards the set goal.

Bazin looked at the sky and said to Nasan: "Your Majesty, there is our supply depot ahead, but I suggest that we should speed up our march and complete the defense of the Turtusa Gorge as soon as possible." ”

"Marshal, your heart is in turmoil."

Nasan took the horsewhip and pointed at the army, a confident smile appeared on the corner of his mouth, "Let the young men have a good meal, soon they will not be able to eat Southern European style food, I think, it won't be long before we can enjoy Chinese food in Zhu Fugui's palace, well, I can't wait to eat the taste of Li Hongzhang's chop and Zhu Fugui's chicken!" ”

"Huh? Are the guys at the supply depot so enthusiastic? Bazin, you see, the smoke has risen in front of you! ”

"Hmm...... Your Majesty, is the old minister dazzled? What does the old minister think of this smoke...... Seems a little weird? ”

·

Directly in front of the French troops, a puff of black smoke rose from below the horizon of the heat wave.

The bicycle wants to ask the side, and the subject country lives extends.

Zheng Peng out of Hanse, return to the wild goose into Hu Tian.

The desert is lonely, and the sun sets over the long river.

Xiao Guan waited to ride, and he was all protected by Yan Ran.

This time, it was not a bicycle that came out of Hanse, and it was not just a lonely smoke rising in the desert.

Changzhou single-cylinder 38-horsepower diesel engine, Changzhou multi-cylinder 55-horsepower diesel engine, 4102 series 120-horsepower diesel engine......

These military engines are far more powerful than the 18-horsepower single-cylinder diesel engines of the Rising Sun Motors.

They spewed black smoke mercilessly, making a rumbling sound.