In March 1934, with the entry into service of the first BT-7 rapid armored aircraft, the Soviet Defense Committee immediately issued an order to develop the next generation of new mechs.

The Kharkov "Locomotive Plant" was commissioned to carry out relevant development work, and the chief designer Ko Sikin submitted the first wooden model to the committee at the end of that year, and then built the first prototype in mid-36, that is, the sister-type mecha codenamed "A-20" in front of Zhao Jian.

In line with the strict requirements for this painstaking work, Ko Xikin was naturally not satisfied with only doing ordinary tests at the domestic test ground, so he specially applied to bring the prototype to the battlefield for actual combat testing, and he himself followed him to Spain.

It is worth mentioning that for safety reasons, the Soviets had no choice but to PASS Spain and their own cargo ships in the choice of transport ships, and chose the fleet of Zhao ships!

At the beginning of the design, the A-20 was improved and upgraded based on the development of the BT-1S mecha, which was tragically "cut in half", and the BT-1S can be regarded as an "upright walking version" of the BT beast series in a sense, with two walking modes: "man and beast". Based on this, Ke Xijin incorporated his own design concept.

Koshkin always believed that it was more appropriate to use a "bullet-resistant profile" than simply increase the thickness of the armor. Because increasing the thickness of the armor will inevitably lead to an increase in weight, the speed of the guide mech will be reduced, and the shape and angle of the armor can be adjusted through guò, without adding much weight, and the defense of the mecha can be improved.

So the A-20, although slightly slower than the BT-7, also has a maximum speed of 65 km/h.

Despite the fact that the A-20's main armor plate is only 20 mm thick, it seems that it is not much stronger than the 13 mm BT-5 and the 15 mm T-26, but the 32-degree angle of its chest armor gives it the equivalent of 40 mm of defense.

This thickness has exceeded the maximum penetration depth of the German-made PAK35 combat defense gun at a distance of 100 meters by 35 mm, as long as the opponent does not find the opportunity to attack vertically, the defense of the A-20 can be said to be invincible in the current land battlefield!

And except for the main armor in front of the cockpit. The rest of the A-20's body is also as angular as possible, in contrast to the boxy or round colors of other countries. The appearance of the whole mecha is a bit ugly at first glance, but a closer look reveals a unique Russian-style violent aesthetic.

"Tsk, it's a pity that there is only one, otherwise this land war will be enough for those Germans."

Zhao Jian knew that on the battlefield at this time, if the entire system and tactics were put aside, in terms of simply comparing the performance of armored aircraft, the Soviet-based mecha on the Republican side was in an absolute advantageous position. The German I and II and the Italian Fiat 3000 were already struggling to match the T-26 and BT-5, not to mention the A-20.

But this contrast is fifty steps and a hundred steps, because in actual combat. Both mechs are terrible.

After the Republican army began its counteroffensive, the armored units of both sides were engaged in battle, but the death was miserable! The Soviet-based mecha with thin skin and big stuffing was often beaten by the battle defense artillery, and the German and Italian gadgets were even no match for Molotov Molotov cocktails, and the international columns incarnated as FFF regiments were burned one by one on the battlefield.

The two sides are sending "heads" to each other like this. For a time, the commanders of the Spanish and communist armies were very distrustful of these foreign mecha units. But the Germans came to experiment with new tactics, so they didn't care. And the Soviets never took the number of casualties as a matter of concern!

Stand in front of this mech. The more Zhao Jian looked at it, the more he liked it, and he liked this mecha not because it had a pair of sharp "giant (meow) breasts", but because of the excellent design concept it displayed. At this time, an old man who was coughing and coughing came over, stood beside Zhao Jian, and spoke to him in Chinese.

"Kid, what do you think of this mech?"

"Great! At least on this battlefield. One-on-one it's already invincible! But ......"

"But what?"

"But it will not be the army that will decide the outcome of this war."

After saying a big truth that could make all the armies in the world feel sad, the old man paused slightly, and then couldn't help but shake his head and smile bitterly. The Soviet Union currently has the strongest army in the Western world, the largest armored machine unit. But their Red Navy may not even be able to beat the Italian tease.

"Kid, I admit you told the truth, but it hurts too much."

"A compliment sounds pleasant, but it hurts even more when you think about it."

“……”

Zhao Jian knew that the old man next to him should be Dr. Ke Xijin, the designer of the A-20, and the old man did not hesitate to personally lead the team to this war-torn Spanish colony in order to improve his work. This spirit is certainly admirable, but the harsh reality is reality!

Soon, the on-site maintenance personnel completed the final inspection of the mecha and signaled to Ke Xijin to say OK, and the old man immediately turned his head and beckoned to Chrisjia on the side, actually wanting her to control the mecha.

It is no exaggeration to say that Chrisgar is currently the best armored pilot of the Soviet army on the Spanish battlefield, her BT-5 has repeatedly performed miraculous feats in several battles, and the damage to the mecha is all caused by her fierce operation, and the enemy has not been able to leave a trace on her BT-5 that is more severe than abrasions.

The reason why Ke Xijin arranged this was to see how long it would take for a young excellent pilot to get used to this mech. However, when Christiga took off her coat and was about to log in to the mecha, Zhao Jian was thundered by her gray "piloting suit".

it! You are Mao Zi who advocates the aesthetics of violence, not the more effective the Turkish Communist Party is, give such a bumpy driving uniform to a beautiful pilot, Uncle Ke Xijin, do you really bear it in your heart!?

Because of the small size of light mechas, most mechs will overheat the cockpit due to the engine on their backs, so the pilot's suit is generally a thin and wear-resistant jumpsuit. But at first glance, the one that Christiga is wearing looks like it was borrowed from Takazu Abe (note (1)). Zhao Jian couldn't help but make up the picture of Christiga sitting on a park bench, pulling open the zipper and saying "Yalana card...... It seems to be quite emotional!

Ignoring Zhao's subtle expression, Christiga got into the cockpit and manipulated the A-20 to move. In order to make this mecha easy for novices to quickly grasp, Ke Xijin has optimized the "Da Vinci mechanism" to a certain extent, and the pilots who have tested it before have said that this mecha is very easy to move and quite resistant to manufacturing!

Chrisgaard first let her do some simple stretching exercises to get used to the sense of control, and then the range of movements became larger and more intense. Sprint short distances, change directions, hand-to-hand combat, the mecha is like a seasoned boxer under the control of Christagaard, with flexible steps and a pair of steel fists.

In a trance, Zhao Jian seemed to have seen the tragic appearance of several German mecha falling to the ground! (To be continued......)