Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Saegheh 40 mm anti-personnel rocket was developed to extend the utility of the RPG-7 portable RPG in service with the Iranian forces. It replaces the standard 30 mm warhead with a high-explosive 80 mm tandem HEAT warhead. A rocket or rocket vehicle is a missile, spacecraft, aircraft or other vehicle which obtains thrust by ejecting a jet of fast moving fluid from a rocket engine. The action of the fluid against the inside of combustion chambers and expansion nozzles is able to accelerate the fluid to extremely high speed, and this exerts a large reactive thrust on the rocket (an equal and opposite reaction according to Newton''s third law).