The computer program Conductor is a tool to calculate curves for the critical inclination angle for the riser at the Lower Flex Joint, LFJ, as a function of the residual tension in the riser. Up to 10 residual tensions can be specified and the critical angle for both normal and extreme operation is calculated. In addition to the critical angle curves the result includes forces for the soil and in the conductor, displacement and rotation of the conductor and the utilisation factor for the conductor. Conductor is based on our own non linear analysis code GEOnac.