Flying

If you have a fly speed, you can use move actions to fly through the air. A creature with a fly speed has one of three maneuverability classes: clumsy, average, or perfect. Creatures with clumsy maneuverability take a –8 penalty to Acrobatics checks to fly, while those with perfect maneuverability gain a +8 bonus to these checks. Creatures with average maneuverability (the default maneuverability) neither gain a bonus nor take a penalty to Acrobatics checks to fly. While you are flying, at the start of each turn, choose a primary direction for the round (including up or down). You can move your full fly speed in a straight line in that direction without the need for an Acrobatics check, as long as the wind conditions are favorable.

If you want to change direction while flying, it costs you an additional 5 feet of movement to turn 45 degrees. If you want to ascend, it costs you an additional 5 feet of movement for each square that you move upward. For example, suppose you have a fly speed of 60 feet. As a single move action, you can fly forward 20 feet, turn 45 degrees to the left, and fly one square diagonally (all of which costs 30 feet of your movement). You can then ascend 15 feet, which costs another 30 feet of movement. At this point, you have used your full 60 feet of flying movement, so your move action is over.

If you are flying in an area with zero or low gravity, movement to ascend does not cost extra squares. If you are flying in an area with high gravity, ascending costs double the extra squares of movement.

The Acrobatics skill also details other types of movement that can be made by flying creatures. These require successful Acrobatics checks, and these checks have consequences if you fail. If you have clumsy maneuverability, you cannot use the hover option presented in the fly task of the Acrobatics skill (see page 135). If you have average maneuverability, all of the options in the fly task of Acrobatics are available to you. If you have perfect maneuverability, you do not have to attempt an Acrobatics check to use the avoid falling damage or hover options; you automatically succeed at these options (unless you are unconscious), though you can still attempt an Acrobatics check to hover as a swift action instead of a move action.