Wasteland Survivalist: A Scientific Guide to Post-Apocalyptic Survival

Gu Lang took out the K flag, went to the bottom of the mast, hung the flag on the rope, and pulled it up one by one.

The K flag was raised to the top of the mast and unfurled in the sea breeze.

The flag, with its yellow and blue colors, looks exactly like the flag of Russia, except that it is hung vertically.

Anyone familiar with semaphore would immediately recognize it as Kilo, meaning "I wish to communicate with you."

Gu Lang returned to the cockpit and used the optoelectronic equipment to observe the enemy's mast.

He was waiting for a red and white flag to be raised.

That is, the "answer flag," which means "I received your signal."

According to standard flag signaling etiquette, if the other party receives a K flag, they should first raise a response flag to indicate confirmation, and then decide whether to continue communication.

Five minutes passed, and the other side did not raise any flags.

The hydrofoil slightly adjusted its direction, changing the angle from parallel to a slowly cutting arc, reducing the distance from three kilometers to about two kilometers.

At sea, maintain radio silence and do not respond to flag signals upon receiving a communication request.

At the same time, actively shortening the distance to a warship means only three things.

Reconnaissance, tailing, or an impending attack.

After the incident on Yushan Island, he would never let the other party make the first move, regardless of the circumstances.

The only thing he could be sure of was that the person who fired first would survive.

This principle applies to both violent individuals and normal people.

Gu Lang pressed the fire control switch on the OFC-3 photoelectric tracker.

This equipment is part of the weapon control system of the Type 022 submarine and is installed on the integrated mast.

It includes high-resolution optical cameras, infrared thermal imagers, and laser rangefinders.

It does not actively emit any electromagnetic waves; it relies entirely on passively receiving visible light and infrared radiation to lock onto targets.

Therefore, it will not trigger any radar warning devices, and the attacked party may not even know that it has been targeted until it is hit.

Gu Lang uses an optical camera to lock onto the midsection of the hydrofoil, and the system automatically calculates the target's distance, speed, and heading.

At this point, the distance was 1,900 meters, the speed was about 50 knots, and the course was approaching his.

The laser rangefinder provides precise distance data, and the fire control computer displays the aiming reticle in the center of the screen based on the target's motion parameters and the ammunition trajectory model.

As Gu Lang aimed his sights at the hydrofoil, the sound of an electric motor came from the bow of the ship.

Although the modified Type 022 fast attack craft has had its anti-ship missile launchers removed, it still retains the H/PJ-13 close-in weapon system at the bow.

It adopts a 6-barrel 30mm Gatling gun design, with a rate of fire of up to 3000 rounds per minute and an effective range of 1500 meters.

Originally designed for air defense and missile defense, it can also be used to strike small surface targets.

With a capacity of 2000 rounds, it can expend all its ammunition in just 40 seconds at the highest rate of fire.

He switched the firing mode to burst fire, firing about ten shots each time he pulled the trigger.

When the laser rangefinder showed a distance of 1400 meters, Gu Lang pulled the trigger.

The H/PJ-13 close-in weapon system's six rotating barrels reach full speed in less than a second, spewing out a series of short, orange flashes from the muzzle.

"Sizzle~ sizzle~ sizzle..."

The 30mm high-explosive shell flew out of the gun barrel, making a peculiar "tearing cloth" sound.

The first batch of bullets landed off course, hitting the sea surface less than ten meters in front of the hydrofoil, creating several white jets of water.

Gu Lang quickly adjusted his aim, shifting it slightly towards the rear half of the ship.

The second salvo finally hit the middle section of the hydrofoil.

At least one shot hit the thruster area near the waterline directly, and a bright yellow flame burst out from the black smoke.

The hydrofoil's speed dropped to zero within seconds, and the hull slammed back into the water due to the sudden loss of speed of the hydrofoil, turning it into an ordinary displacement boat.

A kilometer away, thick smoke continued to rise from the stern of the hydrofoil, the column of smoke drifting in the sea breeze.

The ship spun sideways in the waves, unable to fight off the currents and completely losing its maneuverability.

Gu Lang did not fire a third round of shells. The target had lost its mobility and would no longer pose a threat to him. Fired another round would only be a waste of ammunition.

He switched the electro-optical fire control system back to passive search mode, then pushed the throttle to maximum, and the speedometer finally stopped steadily at fifty knots.

At this speed, the Type 022 submarine has a range of only about 400 nautical miles.

But range wasn't his primary concern at that moment; he needed to get away from the area as quickly as possible to avoid any potential threats.

Traveling westward, Gu Lang finally arrived at Leizhou Peninsula, where Zhanjiang City is located, before nightfall.

Large tracts of farmland are distributed on the western side of the land.

After anchoring, he looked at the map.

Further south lies the Qiongzhou Strait, between Quang Dong and Hai Nam provinces.

The strait is about 80 kilometers long from east to west, which is not a long distance.

However, its average width from north to south is less than 30 kilometers, and at its narrowest point it is less than 20 kilometers, so people swim across it all year round.

It is not easy to safely pass through such a narrow strait.

The entire journey must be undertaken at maximum speed, or it is best to detour around Hainan Island.

Regardless of which method is chosen, a large amount of fuel will be required.

He had to find a way to get more diesel fuel.

Gu Lang looked at the numbers on the fuel gauge and sighed.

As night fell, he went up to the deck to check the speedboat's lights.

According to the International Regulations for Preventing Collisions at Sea, all types of vessels are required to install navigation lights.

Mandatory lights must be turned on during night navigation so that other vessels can determine what kind of vessel you are, how big you are, and which direction you are heading.

Even stealth missile boats are no exception; they have a white masthead light at the bow and a white stern light at the stern.

There is a red port light on the port side and a green port light on the starboard side.

Compared to ordinary boats, it adopts a concealed design, which can be stored away to maintain the smoothness of the hull surface.

According to regulations, navigation lights must be turned on from sunset to sunrise, and must also be turned on during the day when visibility is poor.

Although Gu Lang had turned off the navigation light system long ago, he would still check it every night to prevent it from being accidentally activated.

On the sea in the end times, lighting up the lights according to the rules is equivalent to lighting a lamp to summon one's soul.

He walked around the deck. The observation windows in the cockpit were covered with blackout curtains, and no light was leaking out from the edges.

Back in the cockpit, Gu Lang turned on the photoelectric tracking device to scan the surrounding sea area.

The sea was completely dark, and nothing could be seen.

However, when he switched to infrared mode, flashing lights suddenly appeared on the distant shore.

Gu Lang immediately realized that someone was sending a light signal and took out his phone to check the Morse code symbol table.

"Long, short, long, short. Long, long, short, long, CQ?"

Gu Lang didn't know many Morse codes, but CQ was definitely the one he was most familiar with.

It is also extremely common in radio communications and is the starting gesture for everyone, meaning "call any station".

"Could it be that I've been exposed?" Gu Lang thought with a start.