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the aircraft was completed in 1000 meters of runway takeoffs and landings on an aircraft carrier while in the 100 meters required to complete the take-off, landing a job is completed within about 200 meters of operating space, parking space is also very small,christian louboutin, so the ship Upload aircraft carriers are generally required for using special design and optimization. Optimization of aircraft carriers, mainly in three aspects: First mention Gao takeoff and landing performance,basket louboutin, aircraft carrier takeoff and land the airport is completely different manner, using the catapult or the ski-jump takeoff mode,blouson moncler femme, you need at a distance of about 100 meters to take off, but landing the way it is there is a huge contrast, terrestrial landing is a natural deceleration landed on the aircraft carrier and carrier must be kept ready to be missed pull the state.
the need to maintain a rise of state,woolrich prezzi.
while reducing the speed is controllable rely aircraft arresting cable pull force will stop. Because of the small space landing on an aircraft carrier, so the low performance of the aircraft is extremely demanding,louboutin soldes, it requires aircraft to have lower take-off speed and low speed controllable so as to control the pilot landing, takeoff and landing to reduce the kinetic energy state momentum,nike air jordan, reduce arresting cable and catapult burden. Figure F-20 on the ship ImaginationFor example, F-14A fighter under the weight of 70,scarpe nike air max,700 pounds (32 tons), the off the engine stall speed of 127 nm / hour, at 57,646 pounds (26 tons) under the weight was 115 sea miles / hour. Compare it,chaussure louboutin pas cher, F-15C fighter in 68,louboutin pas cher,000 pounds (30 tons) under weight reached 162 sea miles / hour. Huge difference is reflected in the huge gap between the low-speed performance, if you use the same catapult takeoff weight F-15 will be lower than the same state of F-14 is about 30%,giuseppe zanotti paris, the impact on combat effectiveness enormous. Therefore, countries in the carrier-based aircraft are used a lot of lift means, in addition to such as F-14 after using a variable-geometry wing to improve low-speed performance, the conventional practice is to use a large trailing edge flaps and flaps to improve By opening angle to raise the lift coefficient Gao aircraft to meet the needs of the low-speed performance. The past 20 years,air max, there is a better plan lift,air jordan, that increase in front of the plane a pair of front wing,nike air max italia, Su-33 / J-15 family that has taken this approach,giuseppe zanotti, in one fell swoop reduce landing speed of about 15 sea miles / hour . Rely lift aircraft is a takeoff of the aircraft, after the main wing of the function is to generate lift, but in order to ensure adequate static stability,nike free run 3.0, the center of lift of the aircraft is generally more reliable.
so in many cases even if the lift meet the demand to take off, because the Leverage moment will produce a tail lift at the same time down torque, so that the front landing gear can not be off the ground, and therefore the general layout of the aircraft to take off when the need to have a certain level of under tail side, generating a negative lift to raise the nose down the tail section,louboutin pas cher, in fact, the difference being negative lift tail lift aircraft peace is the main wing produces lift generated by less than the main wing produces lift, it is far less than the sum of the main wing and tail area of peace can generate lift. In landing the state,louboutin soldes, too,barbour, we need to ensure that the main landing gear before landing on the ground before the landing gear.
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发表于 2015-10-13 00:31:22
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