http://news.bbc.co.uk/1/hi/world/mid...st/3273895.stm

Previosly, a thread went into the merits of flying low. Maybe that
works for SA-7s, but flying low puts the choppers in the range of the
RPGs.

The news never states the type of RPG, but if it is the RPG-7, the
range is 300 meters.
http://www.g2mil.com/RPG.htm

Part of the new plan was to fly at night, but given the description of
the witnesses, it seems like this flight was during the day.