The charge for transiting the zone is 6 euro each way. The aircraft mass was 1 tonne. There is no charge if you land at the airport but the landing fee is 23 euro per tonne.
The zone extends 10 nm around the airport from sfc to 4000 feet. There is no radar at the airport.
The tower pass the reg to the billing guys and they send the bill to the aircraft owner
The Irish branch of AOPA are dead and buried. There is a new organisation called NASRAv in Ireland. I am on the committee and I am looking into this charge at the request of some of the members
www.nasrav.org
Thanks for the replies guys.