I am quite sure that the last thing a Farmer needs is motorcycles roaring around without permission. This is the sort of activity that will cause the complete shutdown of access to many old wartime airfields, thus stopping entry to people who may well have travelled some distance to look at the visible remains of these places.

Hunsdon airfield was one place that suffered unauthorised use of dirt bikes. The owners of the land now employ weekend security staff to keep the bikers off. While building the memorial there we had to endure some of these motorbikes riding flat out around the perimeter track with no regard to people out walking.

The airfield itself is criss crossed with public rights of way, but these do not allow the use of motorcycles/offroaders ect. A public footpath is a footpath, not having any rights for mechanically powered vehicles whatsoever.