readx;??? The wildlife in this plane is abundant, and the various insects in the jungle are also very rich, and several people have been found with ticks and mountain locusts along the way, and they have long been strange, but it doesn't feel very good to be sucked by these sticky vampires. It didn't take long for the pen & fun & ge www.biquge.infozha4ngdegao to get the leeches off his body, looking at the pile of leeches lying on the ground, Qian Longzhou still couldn't calm the resentment in his heart, and couldn't help but step up a few feet to stomp on these leeches.

"This area should be able to wade across the river, but if there are armored vehicles as you said, don't count on it," Qian Longzhou said as he crushed the leeches on the ground with his boots, "In addition, unless they are traveling lightly, soldiers can't carry too many things, the current is too fast, it is easy to knock people down, and the bullet or something falling into the water is basically over, unless it is an all-metal bullet." ”

"Do you think it's okay to build a pontoon bridge here that can accommodate 30 tons of vehicles to cross the river?" Liu Xu asked on the side, and the bag on the side said, "I think the most important trouble in building a pontoon bridge here is that the current is too fast, and the boat as the carrier of the pontoon must be fixed with multiple anchors, otherwise it will be easily washed away." ”

Bao Bao paused and then said, "Also, carrying a pontoon bridge that can carry thirty tons of vehicles across the river, then the hull itself also has relatively strong requirements, and how did these boats get here?" ”

"Yes, I think so too," He Yayun nodded and sat down on the grass by the river, "There are spies on the Annan side near the bridge in Beiqiaotou Town, and there are eyeliners everywhere, and they must have already monitored the transportation situation in the entire river, and it is impossible not to attract their attention if the pontoon hull is transported over, even if the people of this time and space don't know about the pontoon bridge, they must know that such a big ship is used for transportation, so at least the alert level will be raised." ”

"In that case, won't the intent of the sneak attack be revealed?" Qian Longzhou thought about it a little and came to a conclusion.

The people next to him all found a place to sit and carefully inspect the area.

"If you want to say, it's very suitable for building a pontoon bridge here, you look at this shoal, this area is the only place that is suitable for building a pontoon bridge." Bao Bao pointed to this area and said, "The bridge is not high, so there is no need to ensure the length and angle of the approach bridge, and all the forces will not be concentrated on one of the boats. ”

"I don't think so," Liu Xu said, "there is only such a shoal in this area, which means that only here will be flooded in this area, if it suddenly rains, then the river will rise sharply, and the water level here is likely to rise in a short time, in this case, the safety of the pontoon bridge itself has also become a problem, if you suddenly find that the pontoon bridge is damaged on the way to cross the river or when you return from completing the mission, then it will be a big trouble." ”

"Yes, it is possible that the situation you are talking about, if only there were local hydrological data." Bao Bao sighed, lay on the grass with his head in his arms, and jumped up with a snort, startling all the elders around him, who turned out to have his head hit a stone hidden in the grass.

"Now the troops are still resting, if there is going to be an operation, at least ten days later, can we build a pontoon bridge here in ten days?"

"Not only do we not have local hydrological conditions, but we also have no knowledge of weather data, and weather forecasts are based on long-term observations, and the number of British meteorological services that analyzed the weather in France at the time of Normandy's landfall was in the thousands, and that was based on decades of experience in meteorological observations."

"That's right, not to mention ten days from now, even if it's three days from now, we can't say what the weather will be."

A few people laughed, and now when it comes to weather forecasting, it's the only thing in the Senate that can't guarantee that words count. The weather radar they used to predict the weather was the one on the Dongfeng, but the weather on the seaside often changed very quickly, and it was too late to predict, which made Yang Feng deflated a few times. Then Yang Feng was unwilling to care about this meteorological matter anymore, and threw the responsibility to Zhang Zefeng, but Zhang Zefeng, a half-monk, had no experience in weather radar, and several rainstorm warnings were issued without a problem, which made the entire crossing group full of distrust in this weather forecast. But despite the distrust, the rainstorm warning issued should be on the lookout for and the typhoon season is just around the corner. There are no meteorological satellites to monitor the clouds in the Pacific Ocean at any time, so we can only rely on weather radars for early warning.

Later, the Great Library gave the meteorological department a very strange way to monitor storm warnings...... Hydrogen balloons. Let people take a hydrogen balloon to the deck, put their ears on the balloon, if you hear movement, then it means that there is a storm approaching, the louder it is, the closer it is, if the sound is loud to the point of harsh, it means that the storm is close at hand. This is because storms can produce strong infrasound waves, and people can't hear them. However, the infrasonic waves will shake the hydrogen in the hydrogen balloon, and the sound of hitting the balloon violently will make a sound that can be intuitively felt.

Hydrogen is not difficult to obtain in this plane, and hydrogen can be generated by electrolysis of water by turning on the power switch on the ship when needed. In comparison, balloons are far more difficult to obtain than hydrogen. The hydrogen balloon they used was a toy brought by Du Yande's daughter, because Du Yande knew that it was impossible to produce balloons in the short term, so he specially brought more than 500 balloons, but he didn't expect his daughter to be able to play with it, so the Senate took it all to predict the weather. At the beginning, Zhang Zefeng personally took the balloon to measure the weather, but after the Wen Qingyan on his mouth burst two balloons, he refused to go anymore when a large piece of his hair was burned.

"So our biggest problem is how to build a pontoon?" Someone asked.

"No," Bao Bao said, "Liu Xu said, I also found that although this area is gentle, but there is a lot of sand and gravel, very little soil, it is obviously the flood channel generated when the water level rises, if it is said that during this period of sudden heavy rain, then it will definitely have an impact on the pontoon itself, and it may also collapse the pontoon bridge and cause an accident." This area is really not suitable. ”

"If I say it," Liu Xu said with a smug look on his face, pointing to the west, "Since there is a flood channel here, the possibility of the water level rising on the upper reaches of the river is not high, we can look on it, maybe we can find a more suitable place." ”

"But the pontoon bridge is still a problem, we don't have an internal fire boat, if we have an internal fire boat, we can cross the river directly."

"What the hell is an inner fireboat?" Someone on the side asked with a surprised face, "Since I came to this new time and space, the new term is a race, obviously we all came from that time and space, but I haven't heard of it!" ”

"Inner fireboat...... It is the amphibious tank of the devil, which was once equipped to the Japanese Marine Corps in World War II. Liu Xu, who spoke, glanced out of the corner of his eye, and sure enough, an officer of the Marine Corps was approaching. The total weight of the battle on land is 9.15 tons, and it is on water

"Why is it heavier on the water?"

"Quite simply, their amphibious tanks are not monophytes, but segmented, and they are no different from light tanks when driving on the road, but they have to install pontoons before they are launched, so that they can float on the water. Their tanks can even be transported by submarine and can be transported across the oceans. ”

"The devil is really a master of crooked technology trees, even if the submarine transports planes, can the tank be disassembled in the submarine?"

"Hehe," Liu Xu showed a mysterious smile on his face, "The devils are not only crooked technology trees, but also veterans with big brains, they didn't plan to put the tank in the submarine at all, but directly tied it to the submarine." ”

"Isn't it? The engine and electrical equipment are blistered, and there is still a hairy use? ”

"There are two points to this, first, the devil's inner fireboat is sealed and can be waterproof to a certain extent; Second...... When the submarine is transported, they dismantle the engine and electrical equipment and put it in the submarine, and then lift it out of the submarine and put it back before they arrive at the destination and are ready to put it back into battle, and then they can rush to the beachhead to play a role. ”

"Speaking of which, we also have a lot of devils crooked on the fruit of the technology tree." Someone couldn't help but sigh.

"Where? Where do we have the shadow of a devil here? ”

"Where? The newly developed booster grenade is the devil's grenadier, the range is short but relatively accurate, the mortar can't be used when our steel is not up to par, and the grenadier is still no problem; Then there is the ship-based machine gun, the body of which is an enlarged Type 92 heavy machine gun. In addition, I heard that a light machine gun is also being developed for use by the special reconnaissance team, and the ammunition supply system used is the bucket feed of the Taisho 11 machine gun. ”

"Bucket feed? It's weird, right? I heard that you should brush oil on it often, otherwise it will be easy to jam. ”

"Yes, but there is an advantage to the bucket type ammunition supply, the use of direct is the bridge clamp to feed the ammunition, the bridge clamp of five rounds can be shot directly into it, and the ammunition carried by the infantry can be used directly for the machine gun, compared to the M240 we are using now, just to load the bullet chain with special equipment, and it is a scatterable bullet chain. But the crooked handle is not used, and after hitting the bullet plate, it sinks down, and the bridge clamp bounces off by itself. ”

"This is the legendary standard general-purpose ammunition, right?"

"Yes, although the devil's set is strange and has many failures, but the versatility is very good, even Mao Zi captured the crooked handle in the Battle of Nomenkan, and he wanted to replace their machine guns with buckets, but in the end he gave up."

"Why?"

"It's nothing, it's just that a Mao Zi officer said that the bullet pressure plate is too heavy, and if it falls, it will hurt your fingers, and if you are inadvertently injured, it will affect the battle."

"In fact, the devils themselves don't like this gun, but they have been installed and use their noses, and they themselves are constantly criticized for the crooked handle, for example, the bipod is too high, and you must stand up when you want to shoot in a lying position, not only is it very tired in battle, but it also improves the possibility of being hit, and the other is frequent jamming, and the shooting efficiency is low. Also, the most awkward thing is that because of the barrel, the gun's sight is on the right side, which means that the shooter must deflect his head to the right side of the gun to shoot, which is a good thing for left-handed shooters, but right-handers are unlucky, and the posture is awkward to death. ”

"Don't talk about it, although the devil's things are all claimed to be crooked science and technology trees, but we really don't have the right to laugh at them," it was Wu Wenlin who spoke, "I found out that only the devil's things are the best things that can be made based on the existing conditions, and we will imitate the devil's Type 92 infantry gun in the next stage." ”

"Why don't you make Miss 75? The 75-mm mountain guns of the French army are also quite good, and they are still rapid-fire guns. ”

"Rapid-fire guns? It is still a big problem for us to make artillery shells now, and the key is that the shell is very troublesome, and only six of the ten rounds of the shell are leaking or have an accident. In addition, if the barrel is too long, the rifling will cause lead to the phenomenon of hanging lead, and the muzzle will often splash liquid lead, and even kill and injure living targets within a radius of 1.5 meters on the side of the muzzle. ”

"Isn't that devil's 92 infantry gun also using integrated shells?"

"Yes, but the barrel of the 92 rifle is short, the chamber pressure is low, and the rolling shell will not have much effect, and the lead hanging situation should not be so obvious. But now we are still thinking about it, we have not yet tried to make it, and if it doesn't work, I'm afraid we can only cast the hexagonal cannon first. ”

"Hexagonal cannon?" Someone shouted, "During the Chinese New Year, Lin Shenhe was talking about making that thing, why hasn't he made it yet?" ”

Wu Wenlin sighed and explained, "Isn't it that the materials can't keep up?" The cannon foundry only set up all the workshops a few days ago, the molds are still being manufactured, and the shells also have to be specially used to cast the shell, which is not easy......"

"Found a good place!" There was a shout from the front, and a group of people heard it and hurriedly ran over. Sure enough, the elders of the two survey teams danced by the river and pointed to the river not far away, and Bao Bao was immediately happy, "This is indeed a good place, although the terrain is a little higher, but the terrain on both sides is very smooth, it is very convenient to build a bridge or something, and it is more convenient for the troops to expand after crossing the river, and the river is relatively narrow, and the water flow is not very urgent, if the water rises, it should not cause too much impact on the pontoon bridge, and it can be basically determined that this is it." ”

The discovery of the bridge site encouraged the crowd to mark the location on a map and then radio to a nearby special reconnaissance team to cross the river to reconnoiter the situation on the other side. The group of veterans in charge of exploration made some further progress upstream, but could not find such a suitable place again, so they returned. That night, the survey report and the pontoon bridge plan were submitted to the Joint Chiefs of Staff, who reacted quickly, and an hour later summoned almost all the veteran officers to discuss the entire plan for the rescue of the prisoner camp.