The Schneider ES-60 Boomerang is a single-seat glider that was designed and manufactured in Australia in the 1960s.
It was designed and manufactured by Edmund Schneider Pty of Adelaide, South Australia.
A version with a conventional straight stabiliser and moving elevator was also manufactured, called the ES-60B Super Arrow.
However, the Ka 6 with its low wing loading proved to be unsuited as a competition glider in Australia's strong summer thermal conditions.
The Gliding Federation of Australia asked Edmund Schneider to design and manufacture a competition sailplane better suited to Australian conditions.