Its not very clever is it.
The reason for 430kg .v. 450kg incidentally is that the 430kg one has a smaller wing and thus a higher stalling speed - which is why that is a light aircraft and 450kg is a microlight. I suppose one needs a line somewhere, but it does seem a bit absurd when dealing with Jabirus and Shadows.
Personally I'd complain to my MP, it is a government QUANGO after all. But, you could also try
Ron Elder
Head of Personnel Licensing
Safety Regulation Group
Civil Aviation Authority
Aviation House
Gatwick Airport South
West Sussex
RH6 0YR
Sat in a meeting with two CAA officials today, one was criticising me for applying excessive professional rigour, the other for not applying enough. All things considered, I'm getting fed up of the bloody organisation. In the meantime, my main concern was their taking 5 months to answer a technical query.
G