Draconic Liftoff Gusts

[jjpickar]

Just a simple question, how much would the speed of the wind in the vicinity of a huge or larger dragon change when said dragon flaps his wings to lift off?

As far as I know, there aren't any rules for it but I was wondering if anyone has a decent house rule for it.

Kill as many cat girls as you feel are necessary to get the job done.

[Fax Celestis]

Just use the rules for the gust of wind spell if you really need them, but apply them only to the squares the dragon's in and the ones immediately surrounding it.

[Ulzgoroth]

Rules-wise the Hover feat characterizes wind effects from large+ creatures hovering near the ground. You could apply the same to lifting off.

Physics-wise you kind of need to decide what trick you use to let dragons fly in the first place.

[cupkeyk]

HOVER [GENERAL]

Prerequisite: Fly speed.

Benefit: When flying, the creature can halt its forward motion and hover in place as a move action. It can then fly in any direction, including straight down or straight up, at half speed, regardless of its maneuverability.

If a creature begins its turn hovering, it can hover in place for the turn and take a full-round action. A hovering creature cannot make wing attacks, but it can attack with all other limbs and appendages it could use in a full attack. The creature can instead use a breath weapon or cast a spell instead of making physical attacks, if it could normally do so.

If a creature of Large size or larger hovers within 20 feet of the ground in an area with lots of loose debris, the draft from its wings creates a hemispherical cloud with a radius of 60 feet. The winds so generated can snuff torches, small campfires, exposed lanterns, and other small, open flames of non-magical origin. Clear vision within the cloud is limited to 10 feet. Creatures have concealment at 15 to 20 feet (20% miss chance). At 25 feet or more, creatures have total concealment (50% miss chance, and opponents cannot use sight to locate the creature).

Those caught in the cloud must succeed on a Concentration check (DC 10 + 1/2 creature’s HD) to cast a spell.

Normal: Without this feat, a creature must keep moving while flying unless it has perfect maneuverability.

I think all dragons get this for free when they reach the appropriate size.

[jjpickar]

I guess there are rules, well I'll be.

[Stormcrow]

I'd combine gust of wind with hover. Everything hover says but medium creatures can't get closer and small creatures save or fall down.