What is the minimum field length recommended for a self-launcher?
A 1500 ft long field is more than adequate in most cases. Of course, this will be pilot dependent. The takeoff roll is less than 600 ft at sea-level with standard temperatures. This roll may be significantly longer if the ground is very soft, if there is long grass or for high density altitudes. The actual field length will depend on what, if any, obstructions are in the takeoff flight path. The landing roll can be less than this, depending on ground conditions.