Sorry - it wasn't Rob who said that there was any ambiguity, it was me in my reply. His intent regarding exemptions for take-offs and landings at Licensed or Government aerodromes within 1 km is at variance with the way in which (5)(c) has been interpreted by most people in this thread.
The true intent of (5)(c), if I deduce it correctly after considering Rob's reply is something like:
'An aircraft shall be exempt from compliance with:
Paragraphs (1), (2), (3) and (4) while utilising the airspace customarily used by aircraft when landing, taking off, practising approaches, checking navigational aids or procedures in accordance with normal aviation practice at:
a. A Government aerodrome
b. A licensed aerodrome in the UK
or when utilising the airspace customarily used by aircraft when landing and taking off in accordance with normal aviation practice at any aerodrome in any other country'
However, I still think that the exemption should apply to all aerodromes; it would be unreasonable to restrict legitimate aviation activities at an unlicensed aerodrome just beacuse Farmer Giles has let 1000 thieves stage a so-called 'car boot sale' just over the boundary fence! The problem, it seems, is in deciding precisely what constitutes an 'aerodrome'......