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Fatigue Load Monitoring of Military Aircraft

It was suggested to the NAN Military Comittee at its meeting of 5 September 1968 that
"Fatigue Load Monitoring of Tactical Aircraft" was a problem in need of study.

The Netherlands Military Authorities, who made the suggestion, emphasized the importance of
load monitoring especially with regard to aircraft that are used for missions other than those
they were designed for.

The Military Committee approved the topic being submitted for consideration by the AGARD
Steering Comittee.

The Chairman of the Steering Committee brought the topic to the attention of the AGARD
National Delegates Board at its 25th Meeting in September 1968. The National Delegates Board
decided that the problem should be handled by the appropriate AGARD Panels and that a high
priority should be assigned to it.

It turned out that the Structures and Materials Panel was the best qualified to deal with
the subject. As a result of actions taken by the Panel Chairman, introductory presentations
were made by delegates from the United Kingdom and the Netherlands at the 28th Meeting of the
Structures and Materials Panel in April 1969. The Netherlands delegation was given the task
to make a compilation of the opinions as regards solving the problem, held by various officials
in those NA'IO countries actively engaged in pertinent research and development efforts. This
led to a report called "Fatigue Load Monitoring of Tactical Aircraft", issued as NLR Technical
Report 69063 and presented by its author to the 29th Meeting of the Structures and Materials Panel.

In view of the obligation to report back to Military Authorities it was decided that a report
had to be written expressing the views of the Panel as a single body rather than those of a number
of individuals.‘ The. representatives of the nations most heavily involved (1.6. Canada, France,
Germany, Netherlands, United Kingdom and United States of America) were requested to prepare
statements that could serve as the basis for the Panel report. The Netherlands was assigned
the task to assemble these statements into the present report.