The simplest delta is just a triangular sheet of sail material with four
The two sticks along the front edge of the triangle are called leading-edge spars. The stick going down the middle is the vertical spar or spine. Finally, the stick which goes across from one side to the other is called the spreader since it keeps the leading edges spread apart.
The flying line is attached to the
vertical spar at a little less than halfway from the nose end. A simple
ribbon tail may be added if extra stability is needed.
That little triangular flap below the sail is the keel, which helps the kite point into the wind. But many modern deltas are keelless, relying on other design features to fly well.
We've been to a few big kite festivals over the years and taken plenty
of photos—mainly from (or near) the Semaphore jetty in South Australia. There's a few deltas among them, so see below for a few
examples which show some of the variety we saw.
Down below there are four big ones, each with a unique feature or two. Although most of these look quite similar in construction and shape,
keen kite-makers still manage to find something to make their creation unique!