How far is it from downtown Sarajevo to the airport
Publish: 2021-05-09 17:32:52
1. Shenzhen airport is not far from the urban area,
don't take the subway for half an hour,
after you get out of the airport, take the No.1 subway,
get off at the citizen center station and get to the downtown.
don't take the subway for half an hour,
after you get out of the airport, take the No.1 subway,
get off at the citizen center station and get to the downtown.
2. Super energy EES has launched a new mining machine today. The E-line plan proves that the government has been working all the time and will make good profits by holding the opportunity.
3. Recently, we have launched an E-plan. I heard that there are still big moves in the future
4.
bus line: No.2, the whole journey is about 4.5km
1. Walk about 150m from Wanda Square (putiandian) to edification international community station
2. Take No.2 bus, pass 10 stops, and reach houtang community station
3. Walk about 90m to Zhengrong Times Square
5. You can use Google, Internet, Gaode and other navigation search to know
6.
bus line: No.89, the whole journey is about 13.8km
1. Walk about 1.1km from Xiyang station of Metro Line 2 to Rende station
2. Take No.89, pass 14 stops, and reach geqicun station
3. Walk about 410m to Zhengrong Fortune Center
7. The F-35 Joint Strike Fighter (JSF) is one of the main fighters to be used by the United States in the 21st century. It plans to replace the F-15E, F-16, A-10 and F-117 of the US air force, the F-14 of the Navy, the AV-8B of the Marine Corps, the harrier of the British navy and the windstorm and harrier of the air force. First flight in 1999
in 1996, only McDonnell Douglas, Northrop Grumman and Lockheed Martin put forward the proposal when the US Department of defense project of JSF was first tendered, and then Boeing was added. After review, the US military decided that Boeing and Lockheed Martin would develop two verification aircraft, numbered x-32 and x-35 respectively. On October 26, 2001, US Department of defense Air Force Secretary Roche announced that according to the strength, advantages and disadvantages of the design and the degree of risk, Lockheed Martin's x-35 program finally defeated Boeing's x-32 program, won the largest arms contract in history, and was responsible for the development of the next generation of advanced joint attack fighter, JSF (Joint Strike Fighter), the new generation of joint strike fighter, is officially named F-35
the JSF program requires a new generation of multi-functional and multi role fighters to put forward high requirements. Generally speaking, it must have a good ability to attack the ground, while taking into account the air combat capability; It must meet the needs of the US air force, Navy, Marine Corps and their allies; It must have strong survivability and stealth performance, precise attack ability and low cost
Lockheed Martin makes full use of the design, manufacturing and maintenance experience accumulated in the development of F-22, and uses some achievements of F-22 as far as possible in the aerodynamic configuration of F-35, so as to rece the risk and cost. More importantly, Lockheed Martin selects an ideal STOVL power scheme, which enables JSF to adopt the conventional layout of two side intake
compared with Boeing's scheme, Lockheed Martin's scheme has greater hovering propulsion, reces the erosion of high-temperature gas on the runway ground, avoids the influence of high-temperature exhaust gas from the intake port on the normal operation of the engine, and reces the forward cross-sectional area of the F-35 inlet, thus recing the windward area of the aircraft, It is beneficial to realize supersonic flight. Its main drawback is that it adds extra weight. The lift fan system consists of lift fan, drive shaft, clutch, roll attitude control nozzle, rotatable vectoring nozzle and clamshell nozzle hatch, with a total weight of about 1800 kg. On the CTOL and CV models, the lift fan will be canceled, and the steerable nozzle will be replaced by the axisymmetric thrust vectoring nozzle. In this way, an additional 2270kg fuel tank will be installed in the aircraft, which will increase the range by 370km and the combat radius by twice that of the F / A-18
F-35 adopts the design of supersonic inlet without boundary layer septum (DSI). Lockheed Martin does not set the conventional fixed boundary layer septum at the inlet, but designs a three-dimensional surface protuberance or bulge by computer. This bulge compresses the flow and creates a pressure distribution that pushes the boundary layer flow away from the inlet. The design has been tested on an F-16 test aircraft and proved to be effective up to Mach 2.0. The test pilots believe that after the new DSI inlet is installed, the thrust of the engine is the same as that of the original F-16, and the unit resial power of subsonic speed is slightly better than that of the original F-16 inlet, thus confirming the advantages of removing the boundary layer separator
in addition, the F-35 and DSI inlets also adopt a single monolithic composite structure, which is directly "body to body" welded on both sides of the fuselage through the flange, without a fastener, which not only greatly reces the structural weight, but also greatly reces the number of parts
the F-35 skin is covered with a layer of "3M" material jointly developed by Lockheed Martin and 3M. This new type of "coating" is quite different from that used in conventional aircraft. Strictly speaking, this is not a "coating", but a thin layer made of polymeric materials. This material can be directly pasted on the skin, so there is no need to spray paint. The biggest advantage of this is that it can save money and rece the additional weight of the aircraft e to painting. It is said that this measure can save at least 300 kg of paint in the whole life cycle of an aircraft. The new polymer film has passed flight tests on the F-16, and when the flight speed reaches Mach 1.8, the film on the skin is still intact
the avionics system developed by F-35 fighter is called "multi function integrated radio frequency system" (mifrs). The system integrates the functions of radar, communication, navigation and RF electronic warfare, and shares hardware such as antenna and processor, making JSF aircraft a real all-weather stealth attack platform with full spectrum self-defense capability in the 21st century. Mirfs system works in 8-12mhz frequency band, and uses active array antenna with low radar cross section. It can complete air-to-air search and tracking, air to ground attack operations, synthetic aperture radar mapping, monopulse ground mapping, electronic jamming, air traffic control and some communication functions. The high gain ESM system can rece the cost of avionics by 30% and the weight by 50%
basic model:
F-35 / CTOL (f-35a) - the simplest. The U.S. Department of defense requires its combat performance to be significantly higher than that of the active F-16. Another feature of the F-35 / CTOL is that it is equipped with a built-in gun and a laser indicator with an infrared sensor. The US Air Force plans to use F-35 / CTOL as a ground attack aircraft to completely replace F-16 and A-10 Note: CTOL -- conventional takeoff and landing)
marine F-35 / STOVL (F-35B) - will not be equipped with built-in gun, but the design allows the installation of an external gun. When hovering in the air, the aircraft has complete controllability in all axial directions. On the basis of F-35 / CTOL, the F-35 / STOVL is equipped with a lift fan proced by Rolls Royce and Ellison, and an air inlet is opened on the back of the front aircraft, so that it has the function of short takeoff and vertical landing. F-35 / STOVL will replace AV-8B and F / A-18C / d Note: STOVL -- short takeoff and vertical landing)
U.S. Navy F-35 / CV (f-35c) is different from F-35 / CTOL because it wants to block landing on aircraft carrier. It increases the size of the main wing and horizontal and vertical stabilizers to enhance the maneuverability when landing on the carrier at low speed. The foldable wing and leading edge wing solve the inconvenience of taking off, landing and parking on the aircraft carrier caused by increasing the wingspan. The increase of the wing area also leads to the increase of the force on the aircraft body ring the take-off and landing process. In order to solve this problem, the landing gear, fuselage and other related parts of the aircraft are reinforced. The range of the F-35 / CV is twice that of the F / A-18C. Like the F-35 / CTOL, the f-35cv is equipped with built-in gun and various sensors. The F-35 / CV will work side by side with the F / A-18E / F Note: CV -- carrier based)
British F-35 / STOVL - the F-35 / STOVL of the Royal Navy and the air force is very similar to the F-35 / STOVL of the US Marine Corps. They will be used to replace "gale" and "harrier"< br />
< br />
F-35：
in 1996, only McDonnell Douglas, Northrop Grumman and Lockheed Martin put forward the proposal when the US Department of defense project of JSF was first tendered, and then Boeing was added. After review, the US military decided that Boeing and Lockheed Martin would develop two verification aircraft, numbered x-32 and x-35 respectively. On October 26, 2001, US Department of defense Air Force Secretary Roche announced that according to the strength, advantages and disadvantages of the design and the degree of risk, Lockheed Martin's x-35 program finally defeated Boeing's x-32 program, won the largest arms contract in history, and was responsible for the development of the next generation of advanced joint attack fighter, JSF (Joint Strike Fighter), the new generation of joint strike fighter, is officially named F-35
the JSF program requires a new generation of multi-functional and multi role fighters to put forward high requirements. Generally speaking, it must have a good ability to attack the ground, while taking into account the air combat capability; It must meet the needs of the US air force, Navy, Marine Corps and their allies; It must have strong survivability and stealth performance, precise attack ability and low cost
Lockheed Martin makes full use of the design, manufacturing and maintenance experience accumulated in the development of F-22, and uses some achievements of F-22 as far as possible in the aerodynamic configuration of F-35, so as to rece the risk and cost. More importantly, Lockheed Martin selects an ideal STOVL power scheme, which enables JSF to adopt the conventional layout of two side intake
compared with Boeing's scheme, Lockheed Martin's scheme has greater hovering propulsion, reces the erosion of high-temperature gas on the runway ground, avoids the influence of high-temperature exhaust gas from the intake port on the normal operation of the engine, and reces the forward cross-sectional area of the F-35 inlet, thus recing the windward area of the aircraft, It is beneficial to realize supersonic flight. Its main drawback is that it adds extra weight. The lift fan system consists of lift fan, drive shaft, clutch, roll attitude control nozzle, rotatable vectoring nozzle and clamshell nozzle hatch, with a total weight of about 1800 kg. On the CTOL and CV models, the lift fan will be canceled, and the steerable nozzle will be replaced by the axisymmetric thrust vectoring nozzle. In this way, an additional 2270kg fuel tank will be installed in the aircraft, which will increase the range by 370km and the combat radius by twice that of the F / A-18
F-35 adopts the design of supersonic inlet without boundary layer septum (DSI). Lockheed Martin does not set the conventional fixed boundary layer septum at the inlet, but designs a three-dimensional surface protuberance or bulge by computer. This bulge compresses the flow and creates a pressure distribution that pushes the boundary layer flow away from the inlet. The design has been tested on an F-16 test aircraft and proved to be effective up to Mach 2.0. The test pilots believe that after the new DSI inlet is installed, the thrust of the engine is the same as that of the original F-16, and the unit resial power of subsonic speed is slightly better than that of the original F-16 inlet, thus confirming the advantages of removing the boundary layer separator
in addition, the F-35 and DSI inlets also adopt a single monolithic composite structure, which is directly "body to body" welded on both sides of the fuselage through the flange, without a fastener, which not only greatly reces the structural weight, but also greatly reces the number of parts
the F-35 skin is covered with a layer of "3M" material jointly developed by Lockheed Martin and 3M. This new type of "coating" is quite different from that used in conventional aircraft. Strictly speaking, this is not a "coating", but a thin layer made of polymeric materials. This material can be directly pasted on the skin, so there is no need to spray paint. The biggest advantage of this is that it can save money and rece the additional weight of the aircraft e to painting. It is said that this measure can save at least 300 kg of paint in the whole life cycle of an aircraft. The new polymer film has passed flight tests on the F-16, and when the flight speed reaches Mach 1.8, the film on the skin is still intact
the avionics system developed by F-35 fighter is called "multi function integrated radio frequency system" (mifrs). The system integrates the functions of radar, communication, navigation and RF electronic warfare, and shares hardware such as antenna and processor, making JSF aircraft a real all-weather stealth attack platform with full spectrum self-defense capability in the 21st century. Mirfs system works in 8-12mhz frequency band, and uses active array antenna with low radar cross section. It can complete air-to-air search and tracking, air to ground attack operations, synthetic aperture radar mapping, monopulse ground mapping, electronic jamming, air traffic control and some communication functions. The high gain ESM system can rece the cost of avionics by 30% and the weight by 50%
basic model:
F-35 / CTOL (f-35a) - the simplest. The U.S. Department of defense requires its combat performance to be significantly higher than that of the active F-16. Another feature of the F-35 / CTOL is that it is equipped with a built-in gun and a laser indicator with an infrared sensor. The US Air Force plans to use F-35 / CTOL as a ground attack aircraft to completely replace F-16 and A-10 Note: CTOL -- conventional takeoff and landing)
marine F-35 / STOVL (F-35B) - will not be equipped with built-in gun, but the design allows the installation of an external gun. When hovering in the air, the aircraft has complete controllability in all axial directions. On the basis of F-35 / CTOL, the F-35 / STOVL is equipped with a lift fan proced by Rolls Royce and Ellison, and an air inlet is opened on the back of the front aircraft, so that it has the function of short takeoff and vertical landing. F-35 / STOVL will replace AV-8B and F / A-18C / d Note: STOVL -- short takeoff and vertical landing)
U.S. Navy F-35 / CV (f-35c) is different from F-35 / CTOL because it wants to block landing on aircraft carrier. It increases the size of the main wing and horizontal and vertical stabilizers to enhance the maneuverability when landing on the carrier at low speed. The foldable wing and leading edge wing solve the inconvenience of taking off, landing and parking on the aircraft carrier caused by increasing the wingspan. The increase of the wing area also leads to the increase of the force on the aircraft body ring the take-off and landing process. In order to solve this problem, the landing gear, fuselage and other related parts of the aircraft are reinforced. The range of the F-35 / CV is twice that of the F / A-18C. Like the F-35 / CTOL, the f-35cv is equipped with built-in gun and various sensors. The F-35 / CV will work side by side with the F / A-18E / F Note: CV -- carrier based)
British F-35 / STOVL - the F-35 / STOVL of the Royal Navy and the air force is very similar to the F-35 / STOVL of the US Marine Corps. They will be used to replace "gale" and "harrier"< br />
< br />
F-35：
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