From the 2007 AFE flight guide:
Kirkbymoorside 135 ft/4mb
A/G 129.9
RW 04/22, 539x20m grass. 04 RH, 22 LH
PPR by telephone. Use of AD is restricted to visitors to Slingsby Aviation and company flight tests or by prior arr.
Operator: Slingsby Advanced Composites Ltd. Tel. 01751 432474