Fixed-wing carrier-based early warning aircraft ’s difficulty in taking off and landing on aircraft carriers is recognized in the world, even surpassing carrier-based fighter , so that the air police 600-600 (KJ-600) After the news of the first flight came out, foreign media have questioned whether the KJ-600 has the ability to take off on the skideck of a non-ejection aircraft carrier. So, can the Air Police-600 take off from the "Liaoning" and "Shandong" ships?
The carrier-based fixed-wing early warning aircraft can skid and take off. Can the Air Police-600 take off and land on the ski-leaping aircraft carriers "Liaoning" and "Shandong"? Can fixed-wing AWACS only take off by catapult?
The picture shows the Liaoning ship
From a technical point of view, if the carrier-borne fixed-wing early warning aircraft has a large enough thrust-to-weight ratio, it is the same as the thrust of the aircraft's engine . If the weight ratio is large enough, it is possible to skid and take off. The general transport aircraft class aircraft has a thrust-to-weight ratio between 0.3 and 0.6. Due to the high lift brought by the wings of a large aspect ratio, transport aircraft can take off easily without a high thrust-to-weight ratio. Of course, if the thrust-to-weight ratio is higher, it means that the take-off acceleration is greater and the take-off distance is shorter, and it is entirely possible to take off on the skid-jump platform of the aircraft carrier.
E-2 series of early warning aircraft are all catapult takeoff, but the Soviet Union once engaged in a Yak-44 early warning aircraft plan, want to use the third-generation nuclear-powered aircraft carrier "Ulyanovsk" aircraft carrier Sliding up and taking off, but the Yak-44 could not really take off and land from the carrier because of the suspension of the aircraft carrier after the disintegration of the Soviet Union. The important reason why the fixed-wing carrier-borne early warning aircraft adopts the ejection method is that its engine usually uses a turboprop engine.It is more fuel-efficient and can have more empty time, but the disadvantage of turboprop engines is that the thrust increase is slower, and the thrust is much worse than that of fighters. Therefore, it is more difficult to take off with skidding unless there is a long enough taxi distance. , Such as starting from the end of the aircraft carrier deck.
The picture shows the Shandong ship
. But in this case, the deck must be cleared every time the AWACS takes off, which is obviously not conducive to the comprehensive utilization of the aircraft carrier deck; if the AWACS uses turbofan engines span9span, it is possible to achieve a skid-leap takeoff, but the turbofan engine consumes more fuel than the turboprop engine, so it is difficult to ensure that the early warning aircraft has sufficient range and flight time. The reason why the Soviet Yak-44 early warning aircraft program was able to take off with a skid jump is that it uses a propeller fan engine that has more thrust than a turboprop engine and is more fuel-efficient than a turbofan engine.
It can be seen that the carrier-based fixed-wing early warning aircraft does not have to be ejected to take off, but at least for now, the catapult take-off method is the most economical. Not only the take-off time is short, it can be ejected in more than two seconds, and it is slippery. Jumping to take off saves time on deck. In addition, for the early warning aircraft itself, there is no need to install a more powerful, but more expensive engine, which reduces the cost of the early warning aircraft. Of course, the premise of all this is that the aircraft carrier must have a catapult function. If there is no catapult , it is a different matter.
The aircraft carrier No. 003 that we are currently building will reportedly adopt the electromagnetic catapult take-off and arrest system, which means that the Air Police-600 will achieve heavy-load catapult take-off on the No. 003 aircraft carrier, which will be sufficient Using its design indicators and comprehensive combat capabilities, it can be said that the Air Police-600 on the 003 aircraft carrier will be like a fish in the water. (White)
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