The U.S. AH-64 Apache helicopter also requires electronic countermeasures to survive on the modern battlefield. Electronic countermeasures is a highly classified and always evolving technology, and this aspect of the instrumentation and performance are usually classified, but a typical "black box" probably includes the following kinds of instrumentation and equipment: 1, radar warning receivers - used to warn The aircraft personnel, so that they know they have been tracked by enemy radar, so that they can take evasive action.
2. Radar jammers, which emit jamming signals, are used to impede and interfere with enemy radar.
3. The jamming wire disperser sends out a metal-covered cloud that can strongly absorb specific radar frequencies, jamming the enemy's radar screen and concealing the real target.
4. Heat flare launcher - can be used to "misdirect" infrared missiles.
5, infrared jammer - in general, this is mounted on the tail of the helicopter, an electronic heating "brick", which can emit a very strong specific wavelength infrared light, so that the enemy missile warheads on the sensitive seeker to be confused and troubled. The existing infrared jammers are available in a variety of configurations. The current model of the infrared jammer is the ALQ-144, which has been nicknamed the "disco ball" because of its unique shape.
All this advanced equipment makes the American helicopter the best in the world. That's not to say that it's tough, but it's pretty rugged compared to the U.S. helicopters of the Vietnam era. As for load capacity, experience in the jungles of Southeast Asia has trumped the ability to operate in hot climates as one of the necessities of all new helicopter designs.
The magic number "4000/95" is used to measure helicopter performance. This number represents a helicopter's performance at 95 percent of our vertical climb in 95-degree Fahrenheit (35-degree Celsius) temperatures with a standard load. This condition is close to the worst engine conditions (gas turbines produce the most horsepower in cold air and the least in hot, humid climates) and is likely to be encountered in the Persian Gulf and Panama regions. This specification makes a lot of sense when you consider the geography of the locations of unrest around the world.