  We present radial velocities for a sample of 723 planetary nebulae (PNe) in
the disk and bulge of M31, measured using the WYFFOS fibre spectrograph on the
William Herschel telescope. Velocities are determined using the [OIII] 5007
Angstrom emission line. Rotation and velocity dispersion are measured to a
radius of 50 arcminutes (11.5 kpc), the first stellar rotation curve and
velocity dispersion profile for M31 to such a radius. Our kinematics are
consistent with rotational support at radii well beyond the bulge effective
radius of 1.4kpc, although our data beyond a radius of 5kpc are limited. We
present tentative evidence for kinematic substructure in the bulge of M31 to be
studied fully in a later work. This paper is part of an ongoing project to
constrain the total mass, mass distribution and velocity anisotropy of the
disk, bulge and halo of M31.
