THE BIPOLAR OUTFLOW OF HE-2-36

We present a kinematical study of the bipolar planetary nebula (PN) He 2-36. A cylindrical model has been fitted to the observed morphology and velocity field. From it, deprojected expansion velocities from 45 to 80 km s-1 and an inclination of 60-degrees to the line of sight wer e derived for the nebula. He 2-36, containing an A type star, is one o f the PNe suspected to have a binary system as central source. We prop ose that its non spherical structure is due to collimation effects in the binary system.