Anybody who has spent some time with simple model rockets knows that even they do not always go where they are expected. I have seen model rockets do some pret

Anybody who has spent some time with simple model rockets knows that even they do not always go where they are expected. I have seen model rockets do some pretty remarkable "surprise" trajectories. It is very easy to understand how a far more complicated SAM launched in an urban environment could fly off course and into a building.