Glider Enthusiasts Participate In Slingsby Week At The Yorkshire Gliding Club

THIRSK, ENGLAND - SEPTEMBER 01: Pre-flight checks are made at the Yorkshire Gliding Club, which lies on a plateau in the North Yorkshire Moors National Park on September 1, 2011 in Thirsk, England. Towed into the sky to a height of 2000ft by an aircraft called a tug, the gliders are then released and can ride the thermals for a considerable amount of time, the club record being 13 continuous hours. (Photo by Matthew Lloyd/Getty Images)