The Raptor, being one of the better arial assault vehicles around, is best suited for long range attacks and getting to strongholds and nodes quickly. I havent quite figured out how to dodge all the incoming rockets but normally going full speed in any direction and lowering or raising altitude helps. Pressing your jump key low enough to the ground will aid in escaping certain death in such instances. The primary fire is suitable for node attacks, vehicles like goliath from directly above and opponents. Fire rockets as often as possible to take out mantas and other raptors. If anyone has some good dodging skills, im all ears.
In ONS Torlan?, a good dodging technique can be to stay near the central tower; then if a missile comes at you you can duck behind the tower and the missile will hopefully hit it instead.