Which type of fire detector system does the TH-73A utilize?

Which type of fire detector system does the TH-73A utilize?

• A. Infrared
• B. Ultraviolet
• C. Mechanical
• D. Pneumatic

Answer: (D)

The TH-73A helicopter utilizes a pneumatic fire detector system. This system operates by using the principle of temperature changes affecting air pressure. When there is a fire, the heat generated increases the pressure of the air within the sensing elements of the pneumatic system. This pressure change triggers an alarm, indicating the presence of a fire. Pneumatic fire detection systems are effective in aircraft because they are relatively simple, reliable, and can respond quickly to temperature changes, making them suitable for protecting critical areas. They can be designed to cover various sensitive areas within the helicopter. In contrast to the pneumatic system, infrared and ultraviolet detectors rely on specific light wavelengths to sense flames or the presence of combustion gases, while mechanical systems often rely on physical changes in materials, such as thermal expansion, to indicate a fire. Each of these alternatives has specific applications and limitations, but the TH-73A specifically employs the pneumatic system for its fire detection needs.

The TH-73A helicopter utilizes a pneumatic fire detector system. This system operates by using the principle of temperature changes affecting air pressure. When there is a fire, the heat generated increases the pressure of the air within the sensing elements of the pneumatic system. This pressure change triggers an alarm, indicating the presence of a fire.

Pneumatic fire detection systems are effective in aircraft because they are relatively simple, reliable, and can respond quickly to temperature changes, making them suitable for protecting critical areas. They can be designed to cover various sensitive areas within the helicopter.

In contrast to the pneumatic system, infrared and ultraviolet detectors rely on specific light wavelengths to sense flames or the presence of combustion gases, while mechanical systems often rely on physical changes in materials, such as thermal expansion, to indicate a fire. Each of these alternatives has specific applications and limitations, but the TH-73A specifically employs the pneumatic system for its fire detection needs.