  We study the vacuum solutions of a gravity model where Lorentz symmetry is
spontaneously broken once a vector field acquires a vacuum expectation value.
Results are presented for the purely radial Lorentz symmetry breaking (LSB),
radial/temporal LSB and axial/temporal LSB. The purely radial LSB result
corresponds to new black hole solutions. When possible, Parametrized
Post-Newtonian (PPN) parameters are computed and observational boundaries used
to constrain the Lorentz symmetry breaking scale.
