Using the classic pod and boom layout developed by the German glider manufacturers, the Zuni uses a modified Wortmann 67 series aerofoil section in a relatively thin double taper wing, (19% at the root to relieve bending moments, rapidly thinning to 15% 0.9m outboard, 14% at the taper intersection and 13% at the tip) which is high set on the fuselage with 1o dihedral, (reducing drag from interference of the wing fuselage junction).
The integrally moulded fin supports the slightly swept all-moving T-tail, with a small degree of reflex camber and a partially mass-balanced rudder.
[1] Flight testing commenced in November 1976 with excellent results which generated much interest from the American gliding community which encouraged Applebay to start production by Aero Tek.
Interest in the Zuni II was lacklustre, due to the lack of competitiveness, as well as the poor currency exchange rates of the early 1980s which allowed European gliders to be imported at lower prices than equivalent American goods.
In 1982, over Taos, New Mexico, Jerry G. Mercer acquired all of his Silver C (3) Gold (3) and two Diamond FAI gliding badges during one flight in a Zuni II, an accomplishment that had never been done before.