This report covers a part of the future work that was suggested in the report "Surface to Air Missiles (SAM) against manoeuvering Anti Ship Missiles (ASM)" by Dag Wallström and Åke Assarsson (FOA-R--99-01134-314--SE). In the report firing zones and "no escape zones" are studied for some given velocities of a SAM against a manoeuvering ASM. Both constant and variable velocities are considered and both line of sight (LOS) guidance and proportional navigation (PN) guidance are simulated. The results show that the firing zone of the LOS guided SAM (with an average speed about 600 m/s) decreases considerably when the target´s velocity increases from subsonic (300 m/s) to supersonic (800 m/s). The firing zone of the PN guided missiles (with an average speed about 600 m/s) also decreases when the targets velocity increases, though this reduction is considerably less than of the LOS guided SAM. The simulations with variable velocity of the SAM show that this lead to a decreaese in firing zone compared to the case with constant velocity. This should be considered when evaluating results from simulations where the missile´s velocity has been approximated to the average speed of the missile.