Small motorcycles made in Iran
Submitted by: gxrx at 2022-10-23 20:37 read 1288 times 2 likes
Soft core transformation Uncle Zhu Rong
After the Crimea Bridge was bombed, the Russian army began to put Iranian drones into actual combat, of which the biggest result was the cruise missile unmanned-Geran-2, which Iran called Shahed-136 (Witness-136). The drone looks like a delta-wing model aircraft, and the data looks quite impressive. The fuselage length is about 3.5 meters, the flight speed is 185 kilometers per hour, and the weight is about 200 kilograms, with a 50 kilogram warhead. The theoretical flight distance is 2,000 kilometers. Even if it is folded in half, it can strike any place in the rear of Ukraine.
The fact is also true, the Russian army has used hundreds of "Witness-136". Targeted strikes were launched against the military camps, warehouses, substations, command posts and other fixed facilities in the rear of the Ukrainian army.
Moreover, it is cheap to manufacture. The cost of a plane is about 20,000 to 30,000 US dollars. In comparison, Ukraine's long-range rocket launcher Haimas used to attack the Russian army costs 150,000 US dollars for a shell.
Because of the low cost, saturation attack is often used in use. A dumper launch vehicle can instantly launch 5 Shahed-136s. The advantage of using the side-to-rear launch is that a container is added to the civilian dumper, and the shelf can be welded. The launch can greatly save costs, and at the same time, it can be well camouflaged. The Iranians are really good at spending money on the edge.
Dismantling analysis of Shahed 131
The Ukrainian army captured a Shahed 131 and dismantled it in detail. This is an early model that Russia also imported. Compared with the 136, there are basically only parameter differences between the two. The overall structure is the same. We can analyze why the Iranian drone is The secret to great success on the Ukrainian battlefield.
And on October 15th, Ukraine also picked up a crashed "Witness-136" in Nikolayev Oblast. You can see the shell made of composite materials for the aircraft, and the size comparison of an adult and a drone.
The original text is too long and written in Ukrainian. As an embedded software development engineer, I am familiar with some of the modules in it, so I will come to the conclusion. The chips are built, and the main chips are all TI chips. On the one hand, it saves costs and on the other hand, it is convenient to purchase. For example, the chips basically use American chips. Of course, the Iranians certainly cannot purchase from the Americans, but the global civilian products are collected. Tens of thousands of chips are still possible.
The reason why Russia cannot handle similar planes is that the electronic design level is limited, and the military system rarely uses digital circuits. Without this psychological barrier, one is that people can lure U.S. drones to land without damage. In 2011, Iran "captured" a U.S. RQ-170 "Sentry" stealth drone, and then successfully copied it.
Second, people who make American equipment are professional. For example, the main American-made F14 Hornet heavy fighter in the Air Force is the one in Tom's "top gun". In order to prevent the Iranians from getting accessories, the Americans not only retired all F14s from active service , and also dismantled all the storage machines. In this way, Iran has become the only country in the world that uses this fighter jet. Without the support of the manufacturers, it can still work normally for decades. It is still difficult to do without a few brushes.
It uses a civilian engine
This engine looks like a Limbach L550 (Limbach L550), a gasoline-burning drone engine. It is produced by Xiamen Linbahe Aviation Engine Co., Ltd., so this engine can be bought in the civilian market.
This engine is widely used in drones. The ECU electronic control unit is controlled by external equipment. It is on the outermost side of the right side of the flying wing on the Iranian drone. Texas Instruments is used. The chip model is unknown.
The flight control unit (FCU) of the drone can be seen clearly, using five Texas Instruments TMS320F28335
The disassembly of the automatic take-off and landing system (ATOL) can also be seen using TI's chip
Another global navigation satellite system GNSS receiver module is located in the middle of the right side of the wing
Its signal is introduced into an internal signal receiver, and the board is like a ready-made board purchased directly from the market, using Intel Altra's fpga board
On the outside of it is an inertial measurement unit (IMU) used to take the original inertial navigation when there is no GPS signal
And the only attack weapon of this aircraft, the warhead is placed on the nose, like a water pipe.
www.wsj.com
