Flight
You can fly through the air, including hovering in place. Your flight speed rank is equal to your Flight rank minus your weight rank (minimum 0) plus 2. An average human has a weight rank of 2 in which case your speed rank is simply equal to your Flight rank. If your weight rank is negative then it is considered 0 instead. Note that your total weight rank includes what you are carrying so you can use ranks of Flight to carry things that your Strength wouldn't normally allow.
Extras
Aquatic: You can move underwater almost as easily as in the air. This modifier allows your Flight ranks to be used as ranks in Movement: Swimming but much cheaper than an Alternate Effect. Flat +1 point.
Continuous: Continuous Flight operates even when the user is incapacitated or otherwise unable to sustain it. The user remains hanging in the air, maintaining relative position to the ground, if necessary. Alternately, the user might float safely down to the ground when unable to maintain Flight as a kind of "safety net," your choice when you apply the modifier. +1 cost per rank.
Subtle: The default Flight effect is noticeable, whether from the rush of air, the roar of jets, or a glowing contrail or aurora, for example. This modifier reduces, and then eliminates, these traces. If your Flight is completely Subtle, you do not need to make Stealth checks to move silently while flying (you do so automatically), although you may still need to do so to avoid being seen or otherwise detected. Even if the power of Flight is undetectable people who see you fly can easily conclude that it is due to this power. Flat +1 or 2 points. See Subtle modifier for more details.
Flaws
Gliding: You fly by gliding on wind currents. Your maximum gliding distance is limited to the vertical distance rank of your starting height, plus your flight speed rank. You may be able to gain altitude occasionally by catching thermal updrafts and winds at the GM's discretion. Other-wise you must land at the end of your maximum distance. -1 cost per rank.
Levitation: You can only move vertically, straight up and down, and not side to side, although you can allow yourself to be carried along in the direction of the wind horizontally. -1 cost per rank.
Platform: Your Flight is reliant on some sort of platform on which you stand or sit. If you fail a defense check while flying, or you are grabbed by someone standing on the ground, you're knocked or pulled off your platform and cannot fly. You can regain the use of your flying platform by reactivating your Flight effect on your next turn. -1 cost per rank.
Wings: You have wings that allow you to fly, but they run the risk of being fouled or restrained, which prevents you from flying. If you are immobilized, restrained, or bound, you cannot fly. You can regain the use of your wings by reactivating your Flight effect once you are no longer affected by the aforementioned conditions. -1 cost per rank.