초록 ▼

A method of detecting cracks and structural separations in the fuselage of an aircraft utilizes a highly detectable gas such as chlorofluorocarbon. The gas will be pumped into the interior of the fuselage until the fuselage reaches a pressure that occurs during normal flight operations. A detector w

A method of detecting cracks and structural separations in the fuselage of an aircraft utilizes a highly detectable gas such as chlorofluorocarbon. The gas will be pumped into the interior of the fuselage until the fuselage reaches a pressure that occurs during normal flight operations. A detector will then be moved over the skin of the fuselage. The detector is of a type that will detect minute amounts of any gas escaping through cracks and structural separations in the fuselage. The detector has an entrapment shoe which entraps any gas that might be bleeding off through a tiny crack. The detector has an alarm circuit which provides an alarm to the operator.

대표청구항 ▼

A method of detecting cracks and structural separations in a fuselage of an aircraft, comprising: introducing a highly detectable gas into the interior of the fuselage; pressurizing the interior of the fuselage to a pressure above atmospheric pressure with the gas contained therein to an amount suff

A method of detecting cracks and structural separations in a fuselage of an aircraft, comprising: introducing a highly detectable gas into the interior of the fuselage; pressurizing the interior of the fuselage to a pressure above atmospheric pressure with the gas contained therein to an amount sufficient to cause slight swelling of the fuselage; then passing a detector over the exterior of the fuselage of a type which will detect minute amounts of the gas which might pass through any cracks and structural separations in the fuselage; and indicating to an operator the presence of any of the gas detected.