Which types of flares are most commonly used on aircraft tubing?

The types of flares most commonly used on aircraft tubing are single flare and double flare. These flares are essential in aircraft maintenance as they create a secure connection that can withstand high pressure and vibration, which are typical in aviation environments.

A single flare is often used in situations where the connection is not subjected to high pressure, while a double flare is preferred for high-pressure applications. The double flare provides an additional layer of safety and reliability, ensuring that the tubing remains leak-proof under varying operational conditions. This is particularly important in aircraft systems, where leaks can lead to critical failures or hazards.

In comparison, while other types of flares, like the triple flare or tapered flare, may be used in specific applications or industries, they are not the standard for aircraft tubing. Threaded flares, on the other hand, are designed for connections that require a male or female thread component, which is not typically the case for most aircraft fluid systems.