Global Wasteland: Upgrade from Abandoned Base

Chapter 199 Helicopter

"Now... the situation seems to be a little bad!!!"

He Chenguang observed the surrounding situation from the tiny mirror, and only muttered in a low voice that he could hear alone.

But what happened next made He Chenguang feel hopeful.

As the heavier rumbling sound appeared, even the people who were fighting the zombies felt this powerful vibration.

As they shifted their gazes, everyone became excited.

Reinforcements are coming! ! ! !
"Brothers, reinforcements are here! It's Battalion Commander Bai of the Field Army, our armored main force is here!!!"

He Chenguang kept shouting in the short-distance radio.

At the same time, He Chenguang also started to transfer quickly.

The entire convoy came out of the zombie group immediately, thus giving the field army a certain space to display.

Seeing such a good opportunity, the albino tank battalion naturally had endless shells, and it was a burst of output against the zombies.

On the other side, Yue Chi looked at the dozen or so mutated monkeys in front of him in a daze at this moment.

In fact, it wasn't that Yue Chi was in a daze, but that Yue Chi was opening the treasure chest.

And this treasure chest was opened from these monkeys.

I don't know why, but Yue Chi feels that these monkeys have a high explosion rate!
A dozen monkeys actually opened three black iron treasure chests.

If it was other treasure chests, Yue Chi would just open it like that, but for this beautiful black iron treasure chest, Yue Chi put a lot of effort into it.

And these three black iron treasure chests did not meet Yue Chi's expectations at all, four items were opened that satisfied Yue Chi very much! !

The first one is a sci-fi gunship, the Comanche.

"Comanche" is an armed helicopter that integrates reconnaissance and attack. The captain is 14.28 meters long, 3.37 meters high, the rotor diameter is 11.9 meters, the empty weight is 3.9 tons, the maximum take-off weight is 4.8 tons, and the maximum speed is 324 kilometers per hour. , the cruising speed is 305 km/h, the maximum ceiling is 2900 meters, the maximum climb rate is 7.2 m/s, it takes 180 seconds for the nose to turn 4.5o, and the maximum range is 2335 kilometers.

Comanche's stealth technology involves many fields, such as electromagnetic field theory and engineering, aerodynamics, flight mechanics, radar technology, infrared technology, fluid mechanics, acoustics, optics, materials science and testing technology.

Compared with the traditional fixed-wing stealth fighter F22, the "Comanche" stealth helicopter is known as the "ceiling" in the helicopter industry. There is no helicopter in the world that can be compared with it.

It is the world's first true stealth helicopter. The fuselage adopts a polyhedral rounded corner design similar to the F1, which greatly reduces the right-angle reflective surface.The engine air intake has been carefully designed, the opening is in the shape of a slit, and the air intake is tortuous, which effectively reduces the radar wave and the echo generated by the turbo fan, greatly reducing the radar cross-sectional area.The exhaust pipe adopts complex cooling and shielding technology, and the exhaust radiation is extremely small, which reduces the infrared signature of the fuselage.At the same time, the ducted fan tail rotor design is adopted, and the radar reflection echo is greatly reduced compared with the traditional tail rotor.The most unique thing is that, as an armed helicopter, it uses a built-in missile bay and a retractable landing gear for the first time in order to minimize its radar reflection area.

Reducing noise is essential for helicopter stealth. The tail rotor is the biggest cause of helicopter noise, so "Comanche" uses a new type of tail rotor. The tail rotor has a shield to reduce the start-up interference between the blades, and the rotor blade The tip is swept back, which reduces the noise to 2-3 decibels. The blade shape and curvature are designed in line with the principle of noise reduction. The narrow and long slot-type exhaust port not only reduces the infrared radiation of the engine exhaust, but also It can eliminate engine exhaust noise. This noise reduction treatment reduces the monitoring distance of "Comanche" to about half of that of ordinary helicopters. It can be said that the overall stealth design makes "Comanche" radar invisible. Infrared radiation, as well as noise, have been greatly reduced.

"Comanche" can carry up to 10 missiles, which can be hung on both sides to close the hatch. The hatch can be closed in level flight, and can be opened at any time during combat. There are three hangers inside the bomb hatch on each side. It can hang "Hellfire" missiles, "Dow" missiles, and "Stinger" missiles. There is a 3-tube 20mm caliber rotary cannon under the nose, which can rotate 180o in the horizontal plane and can be stored backward in the rectification of the turret. inside the hood.

What satisfied Yue Chi the most was that it was connected to the pilot's helmet sight, making it easy to see where to shoot.

"Comanche" is also equipped with a radar jammer, which can turn the radar wave emitted by the detection radar into a pulse signal, so as to achieve the purpose of stealth. It is also installed with a highly intelligent combat system and a flexible operating system, which can automatically carry out all-round Azimuth search and detection, when there is a missile attack, the security system will immediately alarm, and then tell the pilot the threat's attribute, direction, distance and other information, and what countermeasures should be taken.

The tail rotor of "Comanche" can withstand the impact of 12.7mm machine gun projectiles, and after one rotor is knocked out, it can still fly for 30 minutes. , the ability of the biological weapon WQ, when falling at a speed of 23 m/s, the pilot's seat can completely guarantee that the pilot is not harmed, and the success rate is as high as 12.8%.

The treasure box is very suitable for Yuechi's current situation, and three special pilots are directly arranged for Yuechi to drive the only Comanche helicopter currently in the Shanhai base.

Because of this, Yue Chi felt that the treasure chest was really stingy.

But the next three things directly erased all of Yue Chi's unhappiness.

They are three Mi-26 transport helicopters.

For the world's largest transport helicopter, Yue Chi almost knows everything about it!

The Mi-26 heavy-duty helicopter is 40 meters long, 8.2 meters high, with a rotor diameter of 32 meters and a tail rotor diameter of 7.61 meters. 20 fully armed soldiers with a maximum take-off weight of 20 tons.The engine uses two 130 kW D-80 turboshaft engines, eight-blade rotor, five-blade right tail rotor, the maximum flight speed is 56 km/h, and the maximum range is 2 km.

The Mi-26 is the first helicopter with 8 rotor blades. It has two engines and implements load sharing. When one of them fails, the other engine can still maintain the normal flight of the aircraft.Its quality is only slightly heavier than the "Mi-6", but it can lift 20 tons of cargo. The weight of the Mi-26's cabin load and external hanger can reach 20 tons.

The Mi-26 fuselage is all metal riveted, and the rear hatch is equipped with a folding loading and unloading springboard.The lower part of the fuselage is a non-retractable three-point landing gear. Each landing gear has two tires. The front wheels can be steered, and the height of the main landing gear can also be adjusted hydraulically. The "Mi-26" has a huge cargo compartment, which can carry two infantry armored vehicles and a 20-ton standard container. For personnel transportation, it can accommodate 80 fully armed soldiers or 60 stretcher beds and 4 to 5 medical personnel.

The top of the cargo compartment is equipped with guide rails and equipped with two electric winches, with a lifting quality of 5 tons. "Mi-26" has complete flight equipment, which can meet the needs of all-weather flight, such as: weather radar, Doppler system, map display, horizontal position indicator, automatic hovering system, communication and navigation system, etc.Its onboard CCTV cameras monitor cargo handling and in-flight cargo attitude.

The Mi-26 uses a traditional all-metal riveted semi-monocoque pod tail beam structure.

Clamshell rear hatch with folding dock.The lower surface of the tail boom is straight.The engine compartment is made of titanium alloy for fire protection.

The vertical tail is offset to the left.The tail rotor is mounted on the right side of the vertical tail surface.The horizontal tail surface is located at the intersection of the vertical tail surface and the tail boom.

The horizontal tail is fixed in flight, but can be adjusted on the ground to suit the best cruising condition.

The landing gear is a non-retractable three-point landing gear. Each landing gear has two tires. The size of the main landing gear tires is 1120 mm × 450 mm.The front wheels are steerable and the tires measure 900 mm x 300 mm.

There is a retractable tail skid at the end of the tail boom.When the tail skid is stowed, the rear cargo door can be freely accessed.The main landing gear can be adjusted hydraulically for passage through the rear cargo door and for landing on different fields.

At liftoff, sensors on the landing gear display the helicopter's takeoff weight through a dashboard behind the flight engineer's seat.

The rotor is a traditional articulated rotor, and the hub is made of titanium alloy, with flapping hinges and shimmy hinges, with dampers, and no elastic bearings or axial hinges.

This rotor consists of 8 blades of equal pitch, and is the single rotor with the largest number of blades in the world.

Each blade consists of a tubular steel blade spar and 26 fiberglass airfoil segments.The interior of the segment is reinforced with ribs and reinforcement members, the middle is filled with honeycomb filler, and there is a non-detachable titanium alloy anti-corrosion strip at the front edge.

The blade has a moderate torsion angle, the thickness of the blade becomes thinner along the span direction to the tip, and the rear edge is equipped with an adjustment plate, which can be adjusted on the ground according to the needs of the flight state.

The tail rotor is composed of 5 fiberglass blades, located on the right side of the tail beam, and the titanium alloy tail rotor hub.

In order to adapt to the use in alpine regions, the rotor and tail rotor blades are equipped with electric heating anti-icing devices.The rotor speed is 132 rpm.

The drivetrain consists of a V-26 fan-cooled main drivetrain.The transmission power of the main reducer is 14710 kilowatts.

The transmission power is 8500 kilowatts when a single engine works.The tail drive shaft is located on the cockpit roof.

The Mi-26 is equipped with 10 fuel tanks. The fuel system of each engine is independent. The 8 fuel tanks are under the floor of the cockpit, and the two pooled fuel tanks are above the engine. Under normal circumstances, the oil pump is used to supply fuel. When a failure occurs, it can rely on gravity. oil delivery.

The maximum standard fuel volume is 12000 liters.In addition, 4 auxiliary fuel tanks can be taken.

The Mi-26 cockpit can accommodate 4 aircrew, the pilot is located in the left seat, the co-pilot and the pilot sit side by side, there is a folding seat between the two pilots, the flight engineer seat is on the left side of the back, and the flight engineer seat is on the right side. It's the navigator's seat.

There is a passenger cabin with 4 seats behind the cockpit.The cargo compartment can carry two infantry armored vehicles and a standard container of 20000 kg.There are about 20 folding seats along the two walls of the cargo compartment.

The cockpit has four large bubble windows.A pair of portholes at the front can be opened outwards and rearwards.

On the right side in front of the cargo compartment, there is a door on both sides of the cargo compartment behind the main landing gear that can be opened downwards, which doubles as a boarding ladder.

The cargo compartment can be loaded and unloaded via a downward-opening hatch below and two upward-opening clamshell doors.

The individual hatches can be opened and closed by means of a hydraulic system or, in an emergency, by means of a hand pump.Two electric winches are installed on the guide rail on the top of the cargo hold, and each pair of winches can lift 2500 kg of cargo along the cargo hold.

There are winches capable of loading 500kg of cargo, roller conveyors and cargo tie-down points on the floor.

The power plant is two 7460 kW turboshaft engines mounted side by side above the cockpit in front of the rotor shaft.

The engine adopts dual anti-icing devices with electric heating and hot air. In order to adapt to the operation in severe cold regions and unmodified sites, the engine intake adopts two sets of anti-icing devices - electric heating and hot air anti-icing system.

A particle separator is installed in front of the intake duct to prevent foreign matter from invading the engine.There is a third air intake above the two air intakes of the engine, which is used for cooling the lubricating oil radiator.The engines are equipped with a constant system for synchronizing power output and maintaining rotor speed.

If the output power of one engine declines, the other engine can automatically output the maximum power.

In order to prevent the failure of a single engine, the aircraft is equipped with a constant system to maintain the rotor speed. When one engine fails, the other will output more power to keep the aircraft still flying normally.

The aircraft's engine compartment is made of titanium alloy for fire protection.

There are a total of 10 fuel tanks installed in the machine, with a maximum fuel capacity of 1.2 liters, and 4 auxiliary fuel tanks can also be mounted externally.Among the 10 fuel tanks inside the fuselage, two are on the upper part of the engine, and the other 8 are under the floor of the engine room. Oil pumps are used to supply oil to each engine independently.

When the fuel supply fails, the aircraft can also rely on gravity to refuel the engine itself.

The Mi-26 is equipped with everything required for standard day and night all-weather flight, including 7A813 weather radar, map display, horizontal position indicator and automatic hovering system, and optional GPS.

Integrated flight navigation system and automatic flight control system.CCTV cameras are used to monitor cargo loading and unloading and in-flight cargo status.The military type is also equipped with an infrared suppressor, an infrared jamming transmitter, an infrared decoy dispenser, etc.

He is very excited about owning such a powerful weapon, Yuechi, especially after its shortcomings have been subtly improved by the system.

The fuel consumption of the two engines of the original Mi-26 was very large, reaching 2.5 tons per hour, about 3000 liters.

But now it needs to consume 20 yuan of energy blocks per hour.

The weight of the Mi 26 has also become lighter due to the change of the power system. Yue Chi feels that it may play a more perfect role in his hands than before.

Compared with the value of the previous two armed helicopters, the latter two high-tech items seem to be the same at first glance.

But Yue Chi, who is deeply involved in the development of the base's internal economy, politics and people's livelihood, knows how much the appearance of these two things will have a driving effect on his base.

Although their effects are small, they can't stand up to a large number! ! ! !

(End of this chapter)