After the vertical take-off and landing technology is successfully applied to manned aircraft, the vertical take-off and landing technology of the drone has gradually become a trend. The vertical take-off and landing drone is a combination of vertical take-off and landing technology and drone, with vertical/ The short-haul take-off and landing unmanned aerial vehicle combines the advantages of fixed-wing aircraft, helicopters and unmanned aerial vehicles. It has good endurance, maneuverability, load capacity and vertical/short take-off and landing capability. The front line is damaged or the shorter runway or naval ship is taken off for emergency takeoff. Therefore, in addition to the basic features of general drones, vertical takeoff and landing drones can also meet the needs of performing special tasks.
Flying wing layout short/vertical takeoff and landing stealth drone system
Compared with manned aircraft, the vertical take-off and landing drones are smaller in size and power. Therefore, the power units of the internationally disclosed models are mostly piston or low-power turboshaft engines, and very few adopt turbofan engines. However, at an equipment exhibition held in Beijing on April 12, a domestic manufacturer exhibited a “flying wing layout short-range/vertical take-off and landing stealth drone systemâ€, one of which was a 300 kg truck. Drone.
product description
According to the graphic materials displayed on the spot, the short-range/vertical take-off and stealth stealth drone has a total length of 4.89 meters, a wingspan of 9.21 meters, and a height of 1.5 meters (the landing gear is lowered), using "turbofan-5". As a power system. As we all know, "Turbofan-5" is a turbo-fan engine that was modified by Chinese researchers in the 1960s on the basis of "Vortex-6". It is planned to be used for the improved model of the H-5 bomber, but due to H-5 The improved version, the development of turbofan-5 was also terminated in 1973. Therefore, the "turbofan-5" used in this short-range/vertical take-off and stealth drone drone may be a related model with similar technical parameters and "turbofan-5".
Judging from the drone model placed on site, the aircraft adopts full-flying structure, no flat tail, vertical tail, a large number of wing body fusion technology, engine air intake is not at the back of the fuselage, and has good stealth performance. In addition to the body is relatively "fat", the overall shape and the domestic stealth drone "lijian" are very similar.
For the "short-range/vertical take-off and landing" performance characteristics of the drone, when the "Camouflage" consulted the on-site staff, a female staff member said that the technical problem required the engineer to answer, and then the one who was found The male staff pointed to the tail spout of the drone model and the round hole of the abdomen. The "short/vertical takeoff and landing" technique mainly uses the rotating nozzle and the "abdominal spout" technology. Other problems can only be seen on the scene. data.
F35 vertical takeoff and landing aircraft
Some military observers told the Camouflage that the short-range/vertical take-off and landing drones of the flying wing layout transitioned from vertical take-off to forward flight, and from flat flight to vertical landing, compared to conventional flying-wing drones. When changing, the requirements for flight control technology are very high.
In addition, if the ducted fan system is used to achieve short/vertical take-off and landing, in addition to the technical difficulty of the fan itself, it will also bring weight gain to the drone. Therefore, this short-distance/vertical landing and drone drone at the show has a long way to go if it wants to achieve a certain level of maturity.
Details
However, the observer also stressed that short-range/vertical landing and drone drones have broad market prospects in China, especially on small island reefs. Short-range/vertical take-off and landing drones carry certain airspace. In the case of weapons and reconnaissance pods, the island’s defense and reconnaissance capabilities can be effectively improved.
In addition, the short-range/vertical take-off and landing drones are also very suitable for deployment on large surface ships. If deployed on domestically produced new amphibious assault ships, they can effectively complement the operational blanks of traditional fixed-wing aircraft and helicopters, greatly enriching the operational form.
In addition, at the end of 2015, Northrop Grumman Company won the bid to develop a similar flying-wing vertical take-off and landing drone, which was in the “Tactical Search and Reconnaissance Node†project of the Advanced Technology Development Bureau of the US Department of Defense. One of the bidding sub-projects.
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