A group of officers drove in a car towards the target area, two kilometers away. The vehicle came to a halt 200 metres from the target area - suffocation from the fuel-air bomb could last more than 10 minutes at most. For safety reasons, it is not allowed to enter the blast zone for 20 minutes after the end of the explosion.

Although it is not yet possible to walk to the explosion area, at a distance of 200 meters, everyone can clearly see the effect of the explosion. In an area the size of three football fields, there was a mess. The grass, which had already sprouted a little green, was now charred black. Some tall trees were uprooted by the blast and then thrown tens of meters away. The trees were also scorched black, like the grass on the ground, and some were still emitting white smoke.

"Look, that tree is on fire all of a sudden!" Someone shouted pointing to a tree.

Everyone hurried to look over there. Sure enough, a flame suddenly appeared from the trunk of a large tree that had fallen to the ground, and the flame flashed, and it seemed to be about to be extinguished, but in a blink of an eye, it burned again.

"The outer bark of those big trees has been carbonized by the high temperature in the explosion just now. The temperature of these trees has long exceeded the ignition point of the wood. It's just that this bomb runs out of oxygen around it when it explodes. So the trees weren't burning yet. Now it seems that fresh air has entered the blast zone. A technical officer gave this explanation to others.

The flames are burning, which means that there is enough fresh air in the blast zone {one + {read} novel ybdu. So everyone began to walk towards the epicenter of the explosion......

Ron and a few officers came to an artillery bunker. The cannons in the bunker had long been pulled away, and the British were very responsible for putting a concrete telephone pole in the firing hole of the bunker. Now, the cement pole has been blown into several sections and scattered inside and outside the bunker.

The door of the bunker could no longer be opened, and the door made of metal was badly deformed. A soldier inserts a large crowbar into a crack in the iron door and pries it vigorously. With a bang, the entire iron gate fell to the ground.

Everyone walked into the bunker one by one, which was originally used to house 203 mm guns, and there were several iron cages in it. The iron cages are now all lying to the ground. Some of the iron cages were completely deformed, and they were even blown apart. The animals in the cages all died. And most of the hair on their bodies was also carbonized in the explosion.

Ron covered his nose with a glove. The smell of charred corpses in the bunker was so bad that most of the officers were like Ron, and they hurriedly looked at it twice and then withdrew. After the officers went out, several people wearing masks and white coats hurried in.

Then they moved into a machine-gun bunker. The opening of the machine gun bunker is small, so there is not much combustible gas seeping into it. The degree of destruction inside looks a little smaller than the artillery bunker just now. At least, the animals in the cages weren't burned all black. But the animals, whether rabbits or pigs, were all dead. Ron estimated that they probably died of suffocation. If that's the case, it's better to just blow it up.

This time the test was a success. An officer of the British Royal Navy said that if this thing could perform so well in actual combat, the casualties of the Allies would be reduced by at least half by the time it landed. However, he was concerned that good weather like today's is not common in the English Channel. If the wind had been stronger, it would have been hard to say whether this thing would have been so effective.

So this weapon needs to be tested more often. to ensure that it can also be useful in more complex environments.

……

While the officers were talking about the weapon's effectiveness, a tall, lanky man in a cap was standing on a lighthouse, holding a telescope and looking in the direction of the test.

It is a small island located just outside the Port of Dover, or rather a lighthouse on a large reef. And this man is a tower keeper.

"Hey, Gregor, what are you looking at?"

Gregor put down his binoculars, turned around and saw a stocky old man climbing up the spiral staircase of the lighthouse.

"It's old James." Gregor said, "It's still early, why did you come to the lighthouse so early?" ”

"It's not early, it's already 10 o'clock, I'll come early, you can go back to sleep early." James smiled and replied.

"How's that, what's the fun to discover? I saw you holding up a telescope just now, as if you were seeing something funny? James asked again.

"Ah, there was an explosion and a fire over there." Gregor replied.

"Over there? Dover Battery. Could it be that the battery has started test firing again? Old James shook his head, "Since 41, battery fire has become less and less common. I remember the last time I saw the Dover battery firing, it was in ......"

Old James was babbling on about the last time the daring German fleet had crossed the English Channel. After a few sentences, and seeing that Gregor seemed to be of little interest, he smiled self-deprecatingly and said:

"When people are old, they just like to nag. All of a sudden, I forgot that you had been on a full night shift and that it was time to go back to bed. ”

Gregor cleaned up, raised his hand to old James and said, "Then Mr. James, I'll leave it to you." I'll go back from work first. He clenched his right hand into a fist, brought it to his mouth, and yawned, "You see, I might really need to go back and get some sleep." ”

With that, Gregor took off his hat, nodded to James, and walked down the spiral staircase outside the lighthouse with a small leather bag of his hand.

James watched Gregor descend to the base of the lighthouse, and then watched him board a dinghy leaning against the base of the lighthouse. Gregor waved his hand at James from the dinghy, then started the dinghy and headed for land not far away.

Gregor docked the dinghy on the dock, and a dock worker quickly tied the cable to him and waved his hand:

"Good morning, Gregor!"

"Good morning, Mike!" Gregor yawned again, "I'm sorry, I have to go back to sleep." ”

Gregor yawned all the way back to a seaside hut he rented, took out the key and opened the door, and walked inside.

As soon as he entered the room, Gregor immediately changed his tired appearance, quickly drew the curtains, and dragged a large heavy wooden box out of a dark compartment under the bed.

……

A report was sent to Ron.

This is a comprehensive report of 12 tests of this bomb over the course of the month. Ron picked up the report and read it carefully.

"This kind of bomb has excellent destructive power in weather conditions with clear winds of less than or equal to level 3, especially against relatively closed fortifications such as pillboxes. The damage to exposed soft targets is also quite strong. A 1.5-ton bomb has a direct kill radius of up to 80 meters against such targets, and it also has a strong direct killing ability against light combat vehicles. The intensity and duration of its shock wave are much greater than that of a conventional bomb of the same weight...... In such weather conditions, a single explosion of the bomb can cause an extreme hypoxia for about 4-5 minutes within a 20-meter area of the core of the explosion. This state of affairs was sufficient to suffocate the vast majority of the remaining enemy combatants into a suffocation coma. If covered by multiple bombs, the extreme hypoxia in the area at the center of the explosion can last for 10-15 minutes, which is enough to suffocate the vast majority of enemy personnel.

But as the wind increased, the power of the explosion became extremely unstable. In the case of force 5 winds, the explosion can still proceed normally, but the explosion power is attenuated by 10 to 20 percent. The explosion of a single bomb caused the extreme lack of oxygen in the central area of the explosion for less than a minute, which could not cause the effect of suffocating the enemy. Even if multiple bombs explode at the same time, the resulting suffocation zone will not last more than 3 minutes.

When the wind force reaches level 7 or above, there is a more than 50% chance that there will be no explosion, and even if an explosion occurs, the power will be attenuated by more than 40%. At the same time, the asphyxiation effect is largely non-existent.

In addition, rain can greatly reduce the power of the explosion. Depending on the size of the rain, the power of the explosion will be attenuated to varying degrees.

In addition, after the successful detonation of the first bomb, if the wind force is less than or equal to 3, if you need to drop the bomb again, you must arrange the time for re-bombing 10 minutes later, and if the first round of strikes is carried out in the form of multiple bombs covering a large area, the second bomb must be arranged 20 minutes after the explosion. Otherwise, the bomb dropped in the second round will have a very high chance of not exploding properly. Correspondingly, when the wind force is 5......

For the above situation. Make the following recommendations:

1. Avoid using this bomb when the wind exceeds level 5 as much as possible, and avoid using this bomb when it rains as much as possible.

2. In order to ensure the power of the strike, it is best to use the method of covering a large area with multiple bombs. ”

Seeing such words, Ron couldn't help but sigh, although this kind of bomb is good, it is really restrictive to use. It's a restrictive weapon.

……

Almost at the same time Marshal Rommel's command center. A staff officer handed a document to Field Marshal Rommel, who had recovered from his injuries. Rommel took the document and read it carefully.

This is a piece of intelligence sent back from the United Kingdom, which shows that in less than a month, the United States and Britain allied forces have conducted as many as 12 air raid drills targeting the Dover Battery. According to the intelligence, the Allies appeared to be testing a particularly powerful bomb. This kind of bomb, which can be carried by the P/A-38 attack aircraft, explodes, and the power seems to be close to that of a high-angle cabinet. It would seem that this should be the secret weapon prepared by the Allied side for the landing.

"The closest condition to the Dover battery is undoubtedly Calais, which also has a 406-mm gun. In this way, the Yankees and the British seem to be really preparing for the storming of Calais. Is your judgment really wrong? ”