Chapter 693 (1/2)
Twelve Kirov class airships fly slowly from afar in a seemingly slow attitude, but they have not yet reached the sky of Boston. All the sailors of the US Army and the United Fleet who see them all have a look at God on their faces.
The speed of the Kirov class airship is not slow. Even if it flies against the wind, it can reach a steady speed of 15 km / h. Although the speed is not as fast as the speed of galloping horse, don't forget that the airship can fly continuously in the air. As long as the small steam engine that provides power doesn't have any problems and the fuel medium is enough, in theory, the hard airship can directly cross the Atlantic Ocean or even travel around the world.
Of course, at present, Yanhuang tribe's Kirov class airship can't sail across the ocean. However, if the size of the airship is bigger, the buoyancy is doubled, and the internal combustion engine is used to replace the steam engine, then there is no problem in sailing across the ocean.
Kirov class airship is not big in the distance, but once it flies overhead, the shock is not for fun. Even if the airship's flying height is always above 800 meters, when twelve airships fly together, it can only be described as covering the sky and the sun.
Kirov class airship is a full spindle shape, the thickest part is more than 18 meters in diameter, and the length is more than 90 meters. In other words, a Kirov class airship is about the same size as a Carlos class warship.
Compared with the Kirov class airship, the previous hot-air balloon is the absolute younger brother class
Such a big lump flies in the air, even if it is more than 800 meters above the ground, it still looks very big on the ground.
Because the airbags of the airship are full of flammable and explosive hydrogen, for the sake of safety, when the airship is flying smoothly, the height should not be less than 800 meters, and it can't take off in thunderstorm days
The cost of such a Kirov class airship is quite high, even if it is not comparable to a Carlos class warship, it is not much worse.
Therefore, in the past six or seven years, Yanhuang tribe devoted almost all their efforts to build 12 Carlos class airships. This thing and the warship sailing in the sea are the flesh and soul of the stone bear. They can't bear to lose.
When the Kirov class airship flew over Boston, the general attack was completely launched.
First of all, the division artillery regiment of the second division launched the first volley with 105mm and 76mm cannons. Well, it is worth mentioning that there are four 122mm cannons in the division artillery regiment of the second division.
After arduous research and development, especially the scientists of Yanhuang Academy of science and technology and the engineers of the smelter, Yanhuang tribe already has qualified steel which can make 122mm cannon barrel.
At the beginning of the year, the Shangjing military factory had already built 20 122mm cannons. Now, each of the five division artillery regiments attacking the United States has four sample cannons.
The general attack on Boston was the first time that 122mm cannons were fired in actual combat.
Even five or six kilometers away, they can feel the power of the volley. The roar of guns and the louder explosion were enough to prove how fierce the fire of the team attacking Boston was.