INFORMATION:

RAF Merston, Sussex an 'hostilities only' fighter airfield. From Chichester, Sussex, A27, take the A259 south to Bognor Regis. At the next roundabout take the third exit towards the green houses and you will see the perimeter track crossing the farm/factory road.

OS Ref: SU892035
You can use the Ordnance Survey 'Get a Map' and follow the instructions. Copy and paste the map reference.