The Leonard Annebula is an American high-wing, single-seat FAI Standard Class glider designed by Bob Leonard of Wichita, Kansas, based on the Hall Cherokee II.

[1][2] The Annebula uses a completely new single-spar 15.0 m (49.2 ft) wing with Prue-type trailing edge dive brakes.

The wing is constructed from plywood and fiberglass and is responsible for the Annebula's performance increase from the Cherokee II's 23:1 glide ratio to 31.5:1.

The Annebula also has more span, wing loading and a higher aspect ratio than the Cherokee II.

[2][3] By 1983 the sole example had flown over 700 hours and had been used to complete Diamond badge distance and altitude flights.