This is one of the club 100km triangles, suitable for a BGA 100km diploma. The two turn points are Newark (NWK) and Skeffington (SKE). You will need to declare the flight and fly it according to BGA badge rules. An alternative triangle is to use Crowland Airfiled (CRL) and Melton Mobray (MET) for a 105km triangle.
If you want to fly these for fun, you are allowed to count them as declared flights on the BGA ladder, even if you have not declared them, as they have been nominated as ‘club tasks’. Remember that for badge flights, the start line is a 1Km line (0.5km radius) !
[Thanks to Chris Davidson]