will be based on the longest aeroplanes normally using the
aerodrome and their fuselage width. If after selecting the category appropriate to the
longest aeroplane’s overall length, that aeroplane’s fuselage width is greater than the
maximum width in Table 10-1 below for that category, then the category for that
aeroplane will be taken as one category higher. The level of protection will be
appropriate to the aerodrome category so determined.