Ik heb de belangrijkste redenen voor de classificatie even vertaald: ,,The F4 classification is based on the fact that two concrete houses were levelled, one of which was completed only two years ago. Various large projectiles were found and it appeared trucks had been moved over considerable distance. Most of the damage near the centre of the track could be classified as F3. In contrast with other, less rare F2/F3 situations, where damage of this magnitude was only found sparsely, the number of cases of such damage was almost impossible to comprehend and very common. This makes this case particularly rare as well.''
Gr. Ben
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