The Wolds Gliding Club have reached an arrangement with Doncaster Robin Hood Airport regarding airspace for the duration of the competition and only for competitors.
In summary, this involves raising the upper limits of CTA 4,7,8 and 9 to 4,500feet (known as the Upton Corridor) and the establishment of part of their airspace as open to gliders in the comp referred to as the Swinefleet Corridor.
These are described in detail in the PDF document below but to help with your flight planning, the co-ordinates of the Swinefleet Corridor 'ends' are :
N534026 W0005000 and N 532643 W 0004958
Please note: These are in DDMMSS.your navigation software may well use DDMM and decimal minutes or some variation. Please check carefully.'
Link to a WinPilot airspace file below