thumbs than we have explored this realm.
an idea, please look at the above picture of our Cape Blanco
site. We're looking west toward the light house, thus south
is on the left, north on the right. Ideally,
we'll have north wind as indicated by the blue arrows. A typical
DS flight path is indicated by the red circle.
gets launched to the north and gains altitude in the compression
lift on the north side. To initiate the DS flight, the plane
dives down the south-side slope. Then, several miracles occur...
As the plane turns down-wind and dives, its speed increases.
Because it then flies through relatively calm air even when
coming back up, it retains most of the speed it carried when
entering. As it crests the ridge, it suddenly enters the north-side
slope lift. A skilled pilot will anticipate this moment and
use the slope lift's push to accelerate the plane back down
the south side. When done properly, the plane will accelerate
with every turn until the plane's or pilot's limits are reached,
or until no more energy can be extracted from the gradient.
Before the DSlope Fest the last recorded speed was 176 mph
at Parker Mountain in California.
a 20-mph north wind at Cape Blanco, a DS speed of 200 mph
is theoretically possible. Most planes will experience catastrophic
structural failure before this speed is reached, and/or most
pilots will lose the groove, thus allowing the plane to slow.
video tapes show dynamic soaring: Lift
Ticket by Reese Productions and Endless
Lift 3 by Radio Carbon Art.