Chapter 349 Looking at each other, a thousand years of sight! (Added by Murray Snow
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In the static test area, the classic tractor that has been brewing for a long time is parked quietly in the center. It has a conventional body layout, two front and four rear tires, a single-cylinder diesel engine painted in Chinese red that exudes grandeur, and a red five-pointed star embellishes it.
, 40-watt incandescent headlights are installed on the front, and the rear is a boxy cargo box with a ladder design to maximize space in the rear.
The appearance of the classic tractor is perfect, but inside, whether it is the high-torque and high-transmission ratio system that transcends the concepts of the times, or the military-grade beams and half-shafts, they are all designed to carry heavy loads.
The most important thing is that the rear axle suspension system uses a total of fourteen layers of leaf springs, and the ultimate load is close to fifteen tons.
After so many days of hard work, and after building the first single-cylinder diesel engine, Yu Hua and Zhuang Qianding finally completed the manufacturing and assembly of the Red Star tractor prototype.
Now, the static test link has ended and we have come to the final dynamic test link.
After passing the dynamic test, the Red Star tractor project can be declared successful and enter mass production.
As for whether this approach seems a bit childish, I can only say that in war years, everything should be done quickly.
Following the order from Yu Hua, the chief engineer of the project, the young driver who had obtained the best results and driving qualifications through special training and assessment quickly stepped forward, opened the fuel tank and filled the diesel tank. After the fuel filling was completed, he filled the water tank with water.
Add oil, water, and eggs.
This is a feature of the 1990s. Before the tractor is driven out, put an egg at the mouth of the water tank. It will be cooked after a while, and you can eat hot cooked eggs anytime and anywhere.
Outside the safety area, Professor Zhuang Qianding stood in the front row with a smile on his face, staring at the Red Star tractor undergoing final preparations before the dynamic test, his eyes full of anticipation.
Everything is ready, all we need is the east wind.
After preparing and busy for so long, the last moment finally came.
Standing next to him were the heads of departments of the Military Industry Bureau, as well as General Liu, who was invited to visit as a representative of the army. If the Red Star tractor has excellent load capacity and off-road performance, this tractor will be installed in the army immediately.
"Report to the chief engineer, the oil and water filling has been completed, please give instructions!" After the work was completed, the young driver from the headquarters security regiment completed all preparation procedures, quickly ran to Yu Hua, stopped in front of him, stood at attention, saluted, and reported in a serious voice
.
"Start testing." Yu Hua nodded and said.
"yes!"
The young driver responded loudly, straightened his back, and turned to face the Red Star tractor behind him.
Yu Hua then glanced at Lin Wan on the right and signaled to retreat. Then, the two left the parking space and retreated outside the safe area.
At this time, the whole place was silent.
At this moment, everyone is paying attention.
Everyone's eyes are focused on the Red Star tractor, and a pair of eyes are shining with light, all flashing colors that symbolize hope. For Western countries, manufacturing a simple power machine like a tractor is as simple as eating and drinking, but for China,
For the base area, this is an unprecedented challenge.
The significance of the success of the Red Star Tractor is not only to solve the problem of insufficient transportation capacity in the base area, but also to mean that the Chinese have independently created their own power machinery!
This is a small step for the base, but also a giant step for China.
In the field, the young driver, who was the center of attention, took out the crank handle, which weighed more than a kilogram, and then went to the front of the car and put it into the starting port connected to the crankshaft of the engine.
He adjusted the damper with his left hand and held the metal rocker with his right hand. Then he exerted all his strength and turned seven or eight times in a row. As the sound of the mechanical operation became louder and louder, a low and powerful sound of engine operation was heard.
"Thud, tug, tug..." The sound of the single-cylinder diesel engine operating normally resounded through the open space and spread throughout the entire venue.
After the cold start was successful, the young driver put away the heavyweight key and waited quietly for the engine temperature to rise. This is the warm-up stage. One is to let the water temperature rise, and the other is to let the engine oil come up from the bottom case to minimize the wear of parts.
"Jin Yu, are you nervous?" Yu Hua looked at the field, turned to look at Lin Wan, and asked with a smile.
"Nervous, afraid of problems, afraid of tractor failure..." Lin Wan breathed slightly solemnly and nodded in response, not hiding the various emotions in her heart.
Nervous?
Of course I'm nervous.
She deeply understood the meaning of this ugly big thing in front of her. If the dynamic test failed, it would mean that all the hard work of everyone was in vain and they would have to start all over again.
"We will succeed, and failure will not change anything." Yu Hua blinked and smiled, his words showing strong confidence.
Whether this test fails or not, it will not affect the ultimate success of Red Star Tractor.
This is Yu Hua's self-confidence.
Hearing Yu Hua's words, Lin Wan was stunned for a moment, smiled softly, and already understood what Yu Hua meant. She looked at the Red Star tractor in the test area and was no longer so worried.
Five minutes later, the warm-up period was over. The young driver quickly got into the driver's seat, stepped on the brake, held the handle with his left hand and squeezed the clutch, and held the gear lever with his right hand to shift into gear.
First gear, step on the accelerator and release the clutch.
In an instant, the energy generated by the operation of the diesel engine was rapidly amplified through the transmission system, and the power was transmitted to the wheels through the drive shaft. After a few seconds, under everyone's gaze, the unloaded Red Star tractor began to move slowly.
"It's moving! It's moving!" Someone in the crowd immediately shouted excitedly.
In an instant, there was a wave of applause, resounding throughout the audience.
Everyone applauded in unison.
Looking at the slow-moving Red Star tractor, General Liu's eyes shone brightly, as if he had seen a peerless beauty, and he simply couldn't take his eyes away.
The majestic, majestic and solemn Red Star tractor, which runs smoothly at a speed of five kilometers per hour, is like a dazzling star in the night sky and has infinite appeal.
What is love at first sight?
This is it.
For General Liu, high-end gadgets such as tanks and armored vehicles are too far away, but the Red Star tractor in front of him is extremely real. Nowadays, it is not an exaggeration to describe it as "looking at each other for a thousand years".
This is his dream machine.
Professor Yu Hua and Professor Zhuang Qianding applauded warmly, looked at each other, nodded and smiled.
Lin Wan looked at this scene and felt completely relieved.
"Huh..." There was a wave of applause. Listening to the applause from the observation area, the young driver Tao Fang did not dare to be distracted. He suppressed the nervousness coming from his heart, his face was solemn, and the tractor under him drove along the edge of the road.
He drove out of the parking area along the prescribed route, came to a circular driveway that resembled a playground track, and began to prepare for the first speed test.
Due to the crude conditions, the content of the dynamic test was naturally not as strict and cumbersome as that of later generations. It mainly tested vehicle speed, braking distance, fuel consumption, passability and load.
Sorry, there are no test contents such as the 100,000-kilometer reliability project and the durability project.
"Quick!" He stepped on the accelerator to speed up. The sound of the engine running suddenly increased, and the vehicle speed suddenly increased. When the vehicle speed reached about 89 kilometers per hour, Tao Fang immediately released the accelerator, pulled the clutch with his left hand, and shifted into second gear with his right hand.
Shift into gear, accelerator.
The operation is quick and fast, just like an experienced driver.
accelerate!
accelerate!
accelerate!
The speed of the vehicle continued to increase. After the initial nervousness of Tao Fang, who was performing actual vehicle operation, his mentality returned to normal. He continued to operate back and forth and steadily controlled the tractor to speed along the 600-meter circular lane.
At the same time, the vehicle speed detection work in the test site is being carried out simultaneously, and the driving speed of the prototype vehicle is obtained in real time.
The detection method is very simple. Use a stopwatch to record the time taken for each lap, and divide the distance by the time to get the vehicle speed.
"What's the speed now?" After the prototype vehicle passed the monitoring point again, Yu Hua shouted to the timekeeper holding a stopwatch.
The timekeeper responded quickly: "Report, about eight and a half meters per second."
"Eight and a half meters per second, which is equivalent to 30 kilometers per hour, has reached the design level." Yu Hua heard this, nodded, and immediately figured out the speed in his mind.
Thirty kilometers per hour was the original design standard for Red Star tractors. Don’t think that this speed was very low. In China in 1937, where the average train speed was 20 kilometers per hour, this was the true ‘high-speed’ standard.
Soon, the speed test ended, and the results showed that the Red Star tractor could reach a top speed of 30 kilometers per hour under no load, so it passed.
After the vehicle speed test passed, the Red Star tractor continued to conduct a series of subsequent tests in the proving ground.
Braking distance: 6.5 meters from 30 kilometers per hour.
Passability: Maximum climbing grade of 40 degrees, maximum wading depth of half a meter, cross-country speed of 5-15 kilometers per hour, certain ability to pass through sand, mud pits, steps, steep slopes and slippery roads, etc., but no ability to pass through swamp terrain
.
Fuel consumption: 12 liters per 100 kilometers...
The dynamic test project continues, and various real vehicle data appear, which is surprising and exciting. As time goes by, the entire dynamic test comes to an end, and we come to the last item-load.