The best anti-helicopter weapon is your air force fixed wing aircraft, flying at up to Mach 2 with BVR missiles. A fighter jet will out-fly and out-shoot attack helocopters by a wide margain.
Attack helicopters are more useful in hitting enemy armor and other ground-targets. The short-range AAM's they carry are just for last-ditch self defense. Against an enemy fighter jet with long-range missiles, you're better off taking evasive action.
Supersonic fighters are effective against helicopters, but they are expensive, and few of them.
You can use against helicopters and ground attack aircraft are cheaper. Stormtroopers are military burden is not conceding on weight fighters, and even surpassing them. For attack helicopters, high speed is not needed, the speed and maneuverability of the jet in any case higher than that of the helicopter. Range aircraft missiles in any case exceed the helicopter. This allows the storming as effectively destroy the helicopter without incurring the risk of being shot down.
Fighters are best suited for combat aircraft break defense is particularly important sites, that's their main purpose.
Against helicopters, so it is possible to use light aircraft. They are very cheap, but can carry quite a serious weapon, helicopter missiles air to air - Stinger, Strela, Igla, and the like, heavy machine guns. Unguided missiles, which can also be effective at close range.
The speed of light aircraft are comparable to helicopters - 200, 300, kilometers per hour. But they are much cheaper than helicopters. The helicopter is 25, 30, of millions of dollars, and a light aircraft with 10, 30, of thousands of dollars, as a good bike, or the average car. A thousand times cheaper than a helicopter.
Light aircraft can not carry armor, and weapons against vulnerable helicopters. But they can maneuver better than helicopters leaving from the rockets and shells at a great distance. And their low cost allows you to sacrifice them without regret. One set of missiles for light aircraft is comparable in price to himself. Therefore, attacking helicopters, light aircraft pilots can produce rockets and jump from the aircraft earlier than the helicopter rocket will reach them. Light aircraft also have an advantage against the helicopter with heat-seeking missiles, they are agile and their engines emit little heat.
The cheapness of light aircraft allows them in large quantities, if aircraft will be ten times more than the helicopters, the helicopters will not stand a chance. And the cost of aircraft is much lower. This is quite an effective weapon of the ratio cost - effectiveness, despite the foreign frivolity.
Light aircraft can also support ground forces with air and take part in the storming of the enemy's ground forces, playing the role of a kind - "the Air Corps." Attack of the large number of light aircraft makes impotent any anti-aircraft defenses. Flying up like a flock of mosquitoes, they can destroy anti-aircraft guns and cause serious damage to enemy troops, the loss of a few dozen cars in the massive raid does not play a great value. If a light aircraft will attack with helicopters, they will divert a major fire of the enemy and fight with antiaircraft guns, thereby increasing the survivability of expensive helicopters.
The advantages of light aircraft can carry more, and what they can produce in large quantities in Automotive Technology-based, common in China. The ability to quickly replenish lost in the technique of one of the decisive factors in the long war. A war with China, Blitz Krieg is unlikely to even such a strong country like the U.S..
Since helicopters can combat drones. They are more expensive than light aircraft and have less lifting capacity. But the drones are considered one of the most promising weapons.
Against groups of helicopters can use managed fragmentation bombs, dropped from bombers, from a great height. Such weapons were in service with the Soviet Union, against the likely long-range bombers attack Nato. Guided bombs cheaper rockets, and, unlike missiles they are low altitude flying target does not affect their accuracy.