The sniper starts from the bright sword escape period

Chapter 248
Otherwise, if there is no constant pressure valve to decompress, then taking a breath of compressed air with a pressure of [-] or [-] MPa will probably directly ascend to the sky immediately.

Of course, as a diving enthusiast, the constant pressure valve Bailixiu has also been disassembled and repaired, so I have a better understanding of its structure, and the constant pressure valve is controlled by a mechanical spring, so there is no electronic structure.

So this is quite friendly to Bailixiu. After Bailixiu has the star meteor carving knife, the equipment that cuts iron like mud, and then cooperates with Bailixiu's super precision talent. Today's Bailixiu It is equivalent to a fully automatic ultra-precise machine tool.

As long as it is a mechanical mechanism, most of the Bailixiu can be processed. If it contains electronic equipment, such as resistors, capacitors and other Bailixiu, there is no way to do it. You must know that the reason why electronics will develop rapidly is that That is inseparable from materials science.

After solving the most basic compressed air bottle of the Frogman Special Forces, Bai Lixiu's next step is to solve the underwater firearms and underwater blasting time bombs.

The underwater firearms Bailixiu makes easily, just get a COP pistol with an extended barrel.

Moreover, the mechanical structure of the COP pistol is much simpler than that of a semi-automatic pistol, even simpler than that of a revolver, and most importantly, it has one thing in common with a revolver, that is, it is not afraid of sub-bullets.

It is not like a semi-automatic pistol. If you encounter a dud, you have to pull the bolt to pull the stink bomb out of the barrel before you can insert the next bullet.

The COP pistol has four barrels, so it naturally has four chambers, so if you encounter a stink bomb, you only need to pull the trigger again like a revolver to continue to excite the next bullet.

This effect is very important for close combat within ten meters or even a few meters, because the enemy will not give you a chance to pull the bolt to change bullets in close combat.

Not only that, but the Frogman Special Forces have been soaked in water for a long time, so if the connection between the bullet and the warhead is not tightly sealed, it is likely to cause the bullet to fail.

After all, the main component of the bullet is joke cotton, and the moisture content of joke cotton has a great influence on its detonation.

When its water content is less than [-]%, it can be detonated instantly without affecting its detonation performance, but if the water content is higher than [-]% and less than [-]%, it will become less sensitive, and the probability of dud bombs is very high. big.

If it is more than [-]%, there is basically no way to explode, and if it is exposed to light for a long time, it will also undergo photolysis and lose its effectiveness.

Therefore, using this kind of launch device similar to a revolver can obviously deal with the failure situation well.

Of course, the explosives used to blast the ship are due to the use of TNT, so there is no need to worry about the problem of not being able to explode when exposed to water.

After all, TNT is intolerant to water, so there is no need to worry about the problem of poor sealing and failure to detonate. Instead, the most worrying thing is the sealing of the detonating device.

But this is also relatively easy to solve. Bailixiu borrowed the famous MK2 grenade from the Mi Army. The fuze of this grenade is very interesting, that is, after pulling out the safety pin, releasing the pin will activate the internal pressure spring, and then hit the fuze. Trigger the TNT inside the grenade to explode.

That is to say, Bailixiu only needs to design a timing mechanism so that it can pull out the safety plug of MK2 after the time is up, so that the grenade can explode at a certain time.

Of course, relying on the TNT in the MK2 grenade, it is naturally impossible to blow up a battleship or aircraft carrier with tens of thousands of tons, or even tens of thousands of tons, so the MK2 grenade detonated by the permanent mechanical timing device can only be used as a fuze. Detonate a larger equivalent of TNT.

For example, wrap tens of hundreds of kilograms of TNT explosive packs around it, so that it can naturally kill a battleship or aircraft carrier.

As for the mechanical timing device, it is also easy, just add a few gears to a mainspring. There are still many winding mechanical clocks in Sijiu City. After all, electronic clocks are not popular in this era, but the kind of winding clocks. A mechanical clock whose hands are driven by gears.

And Bailixiu didn't ask for how long it could be timed. A dozen or twenty minutes was enough. This was done naturally to allow the frogman special forces to have enough time to escape the explosion range after planting the bomb.

After all, Bailixiu didn't intend to turn the Frogman Special Forces into a suicide squad of little devils.

As long as you are careful when placing it, it is naturally impossible to find the frogman special team. As for how to fix the time bomb on the bottom of the ship, this is naturally simple, just use a few magnets. There is no such popular non-magnetic steel!
Therefore, the magnet is still very good to absorb, and because the density of TNT is not very high, it is more than [-], so a few pieces of balsa wood are stuffed into the TNT explosive bag to balance the buoyancy of TNT, which borrows the buoyancy of water , Naturally, the magnet can absorb tens to hundreds of kilograms of TNT explosives without much magnetic force.

boom!
With a high splash of water splashing from the water, Bailixiu and all the technicians involved in making the underwater time bomb clapped their hands excitedly.

There is no way to test its performance, whether it can be detonated safely in the high-pressure environment of more than ten meters underwater, so Bailixiu had to test one by himself, and the effect naturally satisfied Bailixiu. The water depth of 20 meters is easy. It detonated, and the timing error is within an acceptable range of 3 minutes.

And the most important thing is that this underwater time bomb is assembled, that is, the power of the TNT explosion can be adjusted according to the size of the ship. If you encounter an aircraft carrier, then get a few more packs of TNT explosives and put them together. It is a small warship of several thousand tons, so it is necessary to buy a few bags less.

After all, everyone in the frogman special team also needs to carry compressed gas cylinders for underwater breathing, so the weight they carry is naturally limited. You can't expect one person to carry a pack of TNT explosives hundreds of kilograms!

Even if you can barely move it in the water with the help of the buoyancy of the water, what should you do when you are on the shore!So this kind of underwater bomb that can be disassembled and combined in a more realistic situation is naturally very good.

And its timing detonating device of this combined bomb is independent, so just can put two timing detonating devices on a combined bomb when necessary to ensure the success of the explosion, if the first timing detonating device fails, there is The second supplement, and the first detonating device is successfully detonated, the second device naturally does not matter.

In this way, Bailixiu spent a full month in the machining workshop in Sijiu City to get the equipment of the frogmen special forces, including underwater bombs, underwater pistols, compressed gas cylinders, and flippers. .

Of course, as for decompression suits and tight diving suits, there is no such thing. In Bailixiu's view, those things are purely redundant. Besides, it would be nice to be able to produce a compressed gas cylinder underwater pistol under the current conditions.

(End of this chapter)