Dynamic Testing of Tractor Protection Cabs - Development of Method, Practical Experiences

A high number of serious tractor accidents in early 1950 made it necessary to develop protection frames or cabs and methods for testing them. Basic studies gave information concerning the strength needed and indicated that a dynamic rather than a static test method would be best. Principles and energy values of these tests are discussed as well as OECD and ISO activities in establishing standards. Swedish practical experiences show a big decrease in fatalities as a result of these studies.