Yuan Fang came to the blacksmith furnace again and told the blacksmith to modify the mold again, and the fuse tube was still the same length as before, but it should be thicker.

The blacksmiths were depressed, they had just changed the mold, they had already made a lot of lids, and now it seemed that they had to rework and start over.

This is not the end, Yuan Fang gave them a new task, to make a mold for hollow shotshots, that is, to reduce the volume of the shells to the size of eggs proportionally, and also add some iron spikes to the outside of the shotshots, which look like sea urchins, and Yuan Fang also requires barbs on the spurs.

The timed explosion of the shell was successful, and the next step was to enter the theme, Yuan Fang did not abandon the basics, his original intention of studying these was to deal with the upcoming cluster air battle, and Yuan Fang's design of the scattered bomb was because of this.

Yuan Fang has been thinking about it for the past few days, because it is impossible to accurately calculate the distance of the opponent during air combat, and it is impossible to adjust the time of the scatter bomb explosion on the spot, whether it is an early explosion or a delayed explosion, it cannot cause damage to the enemy fighter, so Yuan Fang thought of this method, as long as the scattered bomb hits the opponent, it does not need too much physical damage, as long as the spikes outside penetrate the armor of the enemy plane and hang on it, wait until the fuse burns and the scattered bomb explodes, Enemy planes will definitely take heavy damage, so you can avoid the embarrassment of being hit but not being able to cause damage to the enemy due to the timing of the explosion.

According to this line of thought, Xia Yi, who is more proficient in crossbow arrows, put forward his own idea, whether he can use armor-piercing arrows to carry bombs, in that case, even if there is no artillery archer, he can exert great power.

This is a very good proposal, after all, there are times when artillery cannot be used in certain environments, such as mountainous areas where horse-drawn carriages are impassable, and artillery cannot be pulled up, so it is possible to solve the enemy's fortified fort in this way.

After some discussion, Yuan Fang and they determined a plan, that is, to make the bomb shell into a two-finger thick cylinder, tie it to the feather arrow, light the fuse and shoot out, according to this idea, Yuan Fang also made a kind of scattered cannonball, that is, a dozen such iron arrows are tied together with silk threads and loaded into the barrel of the cannon to launch out, using the ignition principle of the cannonball, as long as the iron crossbow arrow can hit the target and shoot into the opponent's armor, as long as the bomb above the opponent is finished.

After practical verification, the effect of the shell tied with explosives by the crossbow arrow is quite good, the range and accuracy are much stronger than the scattered bomb, the effective range can reach about 2,000 to 2,500 meters, covering an area of about 20 square meters, and because of the numerical advantage, it appears more dense, Yuan Fang named it a swarm of bees, which means a swarm of bees, and it has no good meaning when it is nailed.

However, the cost of a swarm of bees is quite high, the general iron arrow can not withstand the huge thrust when discharged, resulting in the body of the arrow bending, losing the center of gravity, unable to fly too far resulting in a range is not as good as scattershot, and then the blacksmiths came up with an alloy to solve this problem, but the cost of this alloy is expensive, one will cost almost a tael of silver, a cannon out, not anything else, just the iron arrow will cost more than a dozen taels of silver, this is definitely not a small amount, just the silver in Yang Xing's hand, it is estimated that it will not last long before it will be spent, Therefore, Yuan Fang still intends to use relatively low-cost scattered bombs as the main weapon of the Air Force, and a swarm of bees will also be equipped, but definitely not too much.

That afternoon, Yuan Fang decided to conduct a second live-fire exercise, or training, or test flight.

At the military factory, the newly designed fighter had not yet arrived, and the test pilot Ding Bu had to drive the previous fighter to participate in the training, and at the airport, the female soldiers carried more than a dozen wooden boxes to follow behind Yuan Fang, and Ding Bu and Xueqin, who were ready, came up to salute.

Ding Bu had seen the power of scattered bullets and swarms of bees, and his heart was full of expectations, and after Yuan Fang returned the salute, Ding Bu couldn't help but ask: "Dean, the problem of the cannonball slipping has been solved?" ”

Yuan Fang was stunned: "What shell slipped down?" ”

Ding Bu was stunned and said, "Is it the problem that the shell will roll out of the barrel by itself when the muzzle of the gun is down?" ”

Yuan Fang suddenly realized, slapped his forehead and said in annoyance: "Damn, I've been busy with other things in the past few days, I forgot about it, it's okay, it's all a small problem, let's talk about it later, today you will first test the firing at the angle of elevation." ”

Ding Bu nodded: "That's all it can be." ”

The fighter lifted into the air, followed by the target airship, and then the airship that everyone was on, or the sea area, or that height, the target airship arrived at the designated position and put down the plank target, Ding Bu got the order and drove the fighter to meet it, and fired the first shot at a distance of two thousand meters, this time the artillery used the shells were a swarm, and the silk thread tied after the crossbow arrow was discharged was burned into flying ashes, and the crossbow arrow slowly dispersed and went straight to the target with the sound of breaking the air.

The first hit, half of the hit, to be exact, several crossbow bolts were fixed on the tail of the target, firmly glued to it.

After a while, the bombs on the crossbow bolts exploded, the flames flew everywhere, and the other crossbow arrows that failed to hit the target exploded in the air after flying for a while, like fireworks in the night sky, but there were no brilliant fireworks, only clouds of flames and gunsmoke, and more subtle shrapnel that was difficult to distinguish with the naked eye scattered.

With the cheers in the airship watching the battle, Ding Bu's fighter jet has been getting closer and closer to the target, the distance between the two sides is about a thousand meters, Ding Bu ordered to fire again, this time, the artillery with scattered bombs, with a loud thunderous sound, ten egg-sized shotguns shot out, covering the target in the blink of an eye, with a few sound of impact, five or six shotguns hit the target, the spikes on it were firmly fixed to the target, and then, one by one, the scattered bombs exploded, the target was blown to pieces, and the huge air wave even hit the airship above, causing the airship to shake for a while and almost lose control.

This time, Yuan Fang prepared a total of ten rounds of bees, fifty rounds of scattered bombs, and twenty rounds of hollow explosive bombs the size of a football, which were sufficient, but Yuan Fang ignored one problem, targeting. Dimp flew the fighter jets back and forth, and only half of the ammunition was consumed, and the targets carried by the ten airships were exhausted, and the training had to be suspended and returned to refill.

Originally, Yuan Fang didn't want to equip the fighter with ordinary shells, but thinking about the power of the shells, even if they can't hit the target, as long as they explode near the target, the terrifying shock wave is enough to make the opponent drink a pot, and the range of the shells is far enough to give the opponent a dismount from afar, and it will not delay the next shot.

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