I think this is not correct when talking about loosing a radarlock for a second or more. When pilot turns the aircraft and radar away from the target, he looses a radar lock as well as the missile, there is no chance to regain the missile back. Therefore pilots are strictly instructed to hold the target circle within the HUD frame and keep illuminating. Written in combat employment and pilot instruction manuals.

How MISSILE can be lost? If radar briefely losses target tack for whatever reason it doesnt mean it also losses missile. There is the problem however – if radar losses track than reaquiring it might take too much time. Even several seconds might be too much, especeally when missile is close to target.