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Chapter 176 Unmanned Reconnaissance Plane

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    Guan Fei stood behind a technician with his hands tied, watching him concentrate on soldering the processor's pins to a double-sided circuit board according to the circuit diagram.  ¡À The processor is naturally the Chinese processor he just got back from the Semiconductor Research Institute.  In this era, computers are only for professionals, and they have never considered allowing ordinary people to disassemble them. There is no room for DIY, so there are not so many convenient sockets.  All components, including the processor and memory, are soldered directly to the circuit board.  If there is a problem with a computer, users will turn to the manufacturer for help instead of repairing it themselves.  Since there are no accessories, Guan Fei is not interested in developing a socket that cannot be sold.  So this processor had to be soldered directly to the circuit board using the traditional method.  The circuit board is less than twenty centimeters long and ten centimeters wide, about the size of an adult male¡¯s palm.  With such a small area, it naturally cannot accommodate too many components.  Therefore, a double-sided circuit board is used, with the front and back fully soldered, and most of them are integrated circuits. Only a few auxiliary circuits use traditional independent components.  The processor is located in the upper middle of the circuit, and there is a row of four soldered integrated circuits below.  Judging from the surface logo, it is a memory produced by Japan's Sharp Company, with a capacity of 32k per block.  The technicians learned their skills well. Although the pins themselves are very new, in order to ensure the welding quality, each pin was carefully polished to remove surface rust.  Then dip it in flux, lightly apply a layer of solder on the surface, and do preliminary tin plating.  With this layer of tin plating, when soldering, the tin will be more easily integrated and the soldering will be stronger.  His movements are not fast, but very gentle, and the soldering is very crisp every time.  The solder joints formed after welding are very small, the surface is round, and there are basically no sharp spikes caused by dragging.  Guan Fei watched silently with his hands behind his back, thinking that when the military division was precarious, he soldered the first arcade circuit board produced in Hong Kong by himself.  In the blink of an eye, the military division has grown to a large scale, with various talents under his command. He no longer needs to rely solely on him, and he feels like time is like water.  After completing the last solder joint, the technician waited for a moment for the temperature to drop and confirmed one by one that there was no soldering. Then he took a multimeter and conducted a final check one pin at a time.  "Commander, the soldering is done! There is no problem in the test." All the tests passed. The technician wiped the sweat from his forehead, held the edge of the circuit board with his hands, put it into the sponge cushion box, and handed it over with both hands.  "Thank you! Thank you for your hard work!" Guan Fei repeated the inspection to confirm that it was indeed completed, and thanked him with a smile.  ¡­ ¡­ On the anti-static rubber tabletop, there are various components such as lenses, optical lenses, tape transport mechanisms, etc. There is also a Sony beta video tape that has been disassembled and only the tape part is left.  Many of these things are imported from Hong Kong.  The military subdivision can only be said to have preliminary manufacturing capabilities now. It cannot be said that these things are absolutely impossible to make, but the cost will definitely be horribly high.  And at the speed of making this batch of high-precision manufacturing equipment, it would take less than two or three years to make it at all.  If you don¡¯t have it yourself, of course you can just outsource it. Guan Fei doesn¡¯t have any mental mysophobia in this regard.  "Scope!" Guan Fei, wearing dust-free clothes, stretched out his right hand and said dullly through the mask.  The assistant handed him a lens barrel made of lightweight aluminum alloy with a layer of matte insulating paint sprayed on the surface to replace the original plastic lens barrel.  They are currently unable to get involved in these high-precision operations and can only act as assistants.  Guan Fei took the lens barrel and weighed it gently. The total weight of the retractable lens barrel was about 31 grams, which was at least 20 grams lighter than the original plastic lens barrel.  The lens barrel is made with extremely high precision, the surface is smooth, and it expands and contracts very smoothly.  He used his rubber-gloved hands to twist up the lens, gently put it into the frame, adjusted it carefully, and then slowly tightened the screws to secure it.  "Servo motor!" After confirming that the lens has been accurately positioned through the biological accessory brain, he stretched out his hand and said softly.  A small and exquisite servo motor was handed to him.  This is a specially made product of the Military Division Motor Factory, which can ensure that the minimum advancement size is about one micron.  Guan Fei took the servo motor and completed the installation meticulously. Then he reached out again and asked his assistant to hand him the next component to be assembled.  As Guan Fei devoted himself to it, time passed by, and there were fewer and fewer scattered parts on the table, until the last part was installed in place.  "Huh!" Guan Fei let out a long breath, forming a white mist on his mask.  ToolsThe work of ? is actually handed over to the biological assistant brain, including the design drawings and installation progress, all controlled by the biological assistant brain.  However, the assembly of the camera is a very delicate job, and even the biological accessory brain cannot perform it very quickly.  After ten hours of long assembly, his tense muscles became extremely sore, and all the energy in his body seemed to be drained, making him want to sit down and have a good sleep.  But the ten hours of work were not in vain. The TV-grade optical lens, mechanical tape transport mechanism, camera circuit that removes the audio and only retains the video recording function, control circuit, power circuit, etc. were finally assembled.  An ultra-light camera weighing only 903 grams was finally born in his hands.  This camera can carry out ten times optical zoom, can automatically zoom, has anti-shake image compensation function, and the image recording quality reaches ntsc standard.  The various indicators are simply not the same as the home cameras launched by JVC. Even compared with TV-level cameras, they are only slightly inferior.  A large number of purchased parts and a small amount of parts modified and replaced by ourselves are only at this level.  It¡¯s not that better cameras can¡¯t be made, but that they¡¯re not necessary.  The total weight is nearly ten kilograms, which is too heavy compared to later DVs.  But in this era, even if Guan Fei is willing to use memory, with a mere tens of kilobytes of storage, to be able to record digital images for at least one hour, the weight is much heavier than a traditional tape recorder.  Under the current conditions, this is the best choice.  ¡­ ¡­ ¡°Lens!¡± Guan Fei stretched out his hand, and the assistant beside him quickly handed over a piece of Leica optical lens made in West Germany.  Don¡¯t get me wrong, Guan Fei is not repeating the task of assembling another camera.  It is also an optical lens, which is used on cameras.  What he is currently installing is an automatically controlled camera that can take photos at a constant speed at a rate of one frame per ten seconds, or continuously press the shutter at a rate of one frame per second.  As long as the film can keep up, there's no problem in shooting continuously until the battery runs out of power.  Compared with the complexity of the camera, the automatic camera is much simpler. The entire assembly work is completed in less than ten minutes. ?¡­ ?The final assembly workshop on the first floor of the headquarters experimental building.  On the central assembly platform of the spacious workshop, a fixed-wing aircraft with gray spray paint was parked quietly.  The body of the aircraft is square, which is a traditional box-shaped aircraft, and the wings are located on the upper part of the fuselage, which is the so-called upper wing.  The entire aircraft looks quite satisfactory and there is nothing surprising in its design.  However, the size of this aircraft is not large, only 398 centimeters long, with a wingspan of 7.8 meters, and a height of 72 centimeters with the non-retractable landing gear.  There are no seats visible on the plane, just a flat box.  By the way, this is a model airplane.  "However, now Guan Fei and others are going to perform major surgery on it, add power devices, camera devices, camera devices, navigation devices, and modify it into an unmanned reconnaissance aircraft!  Because the overall design comes from Guan Fei, the corresponding space has already been reserved on this aircraft model to install various accessories.  In an era when electronic products cannot be miniaturized, in order to be able to install all the accessories on the drone, the fuselage adopts a box design, sacrificing flight performance to meet space requirements.  All trimming work has been completed during the design, and each accessory is strictly designed and manufactured to ensure a stable center of gravity.  In the belly of the fuselage, holes are also reserved to poke out cameras and camera lenses.  This assembly does not require a very clean environment. Everyone, including Guan Fei, no longer wears stuffy dust-free suits.  A group of young guys were walking around the plane, looking at the various accessories placed next to the assembly table. Their faces could not contain their excitement. Even Zou Yongdong, who was usually very calm, was also smiling at this moment, eager to try.  Which child doesn¡¯t dream of flying?  As a race that can only keep its feet on the ground and run on the ground, it has an uncontrollable yearning to fly into the sky.  The bamboo dragonflies, kites, and Kongming lanterns they played with when they were children are all part of the human desire to fly.  It's just that the plane is so small, like a toy, that it obviously can't carry people.  Even if it can fly with a load of tens of kilograms, everyone has some doubts.  "Everyone is in your place. Now, let's start the final assembly work!" Guan Fei looked at the eager expressions of everyone, clapped his hands as he wished, and began to assign work, "First is the power part!" Zou Yongdong and other power manufacturing teams hurriedly used the trolley  , pushed out a completed radial structure piston engine and ran over.  The total weight of the engine is 20 kilograms. A young technician couldn¡¯t wait and picked it up alone.Come.  Zou Yongdong and the others paused in annoyance, regretting that they were too slow to seize this opportunity.  Guan Fei laughed and did not interfere in their play.  This time he did not do it himself, but stood by with his hands and pointed, guiding everyone to install the engine into the nose along the slide rail.  After all the fun, everyone is still very serious about their work.  After the engine was placed in the predetermined position, everyone set up various measuring equipment and carefully measured it from all angles. After confirming that it was placed in place, they carefully fixed it with electric welding.  The next step is to connect the oil line. A kind of technician is very excited to use copper oil pipe to connect the wing fuel tank to the engine.  Before the engine was installed, the nose of the aircraft was still a little upturned and looked a bit floating.  "When the engine is installed in place, the nose of the aircraft sinks slightly under the weight of 20 kilograms, and then stabilizes again under the gravity of the rear tail.  After the aluminum alloy blades were assembled, a plane appeared in front of everyone.  Click click click click!  A technician holds a camera and does not spare the film. He presses the shutter hard back and forth to record the scene of everyone working.  Zou Yongdong, who was tightening the screws with a focused expression; Zhang Dongbei, who didn't bother to wipe his face with oil stains; Tan Feng, who got under the body to measure the balance of the fuselage He took many photos of everyone, including close-ups.  There are also many group photos with everyone in them.  "Navigation system!" Zou Yongdong and others completed the engine installation and immediately made way for the navigation team to install the gyroscope to the reserved position.  This unmanned reconnaissance aircraft does not have advanced navigation equipment and relies entirely on the gyroscope for position positioning.  It cannot achieve precise positioning, and the navigation error is calculated to be approximately one hundred meters.  Precision guidance cannot be achieved without it, but the military division is not yet able to control ultra-long distances. The reconnaissance aircraft relies entirely on program control of the flight path. Without it, it will probably never come back after flying out.  With it, at least you know where to fly, the general direction is correct, and you can return.  Once you get close to visual distance, you can land via radio remote control.  "Control circuit!" The navigation equipment was quickly assembled, and they took the initiative to make way for the control team to install the control circuit.  The control circuit, which is no more than twenty centimeters long, is fixed on an alloy bracket with screws standing upright.  After all the lines are connected, the antenna in the protective cover is pulled out from the upper end of the machine body and pulled until the tail is fixed. The circuit board is covered with a thin metal box to shield against external radio wave interference.  This simple and primitive unmanned reconnaissance aircraft is just for temporary use, and it is not intended to be used for a lifetime.  Besides, the Yi Dingjun and other surrounding armed forces have no technological capabilities and are just bullying children. This simple protection is enough.  Video cameras and camera circuits are also centrally installed next to the control circuit to save space.  Control cables connect them to the control panel for program control.  Video camera, camera, these are the only functional accessories.  As for the high-end things like real-time monitoring of the whole process, the military division really can't do it.  Being able to build this reconnaissance aircraft that is unmanned, can automatically record and take pictures, fly into the sky, and return smoothly is already the pinnacle of existing technological capabilities.  A thousand miles away begins with a single step.  If you want to perform real-time monitoring and complete visual remote control operation, considering the development speed of military divisions, it is absolutely impossible without long-term technology accumulation.  The appearance of the final assembled aircraft is actually not beautiful, but everyone is smiling happily, very proud, and can't put it down around it.  To them, this self-made unmanned reconnaissance aircraft is the most beautiful thing in the world!
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