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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.〔Said, Bob: ''1983 Sailplane Directory, Soaring Magazine'', page 36. Soaring Society of America, November 1983. USPS 499-920〕 ==Design and development== The Annebula design is derived from the Cherokee II, but while retaining the basic Cherokee structure, Leonard incorporated many changes and new features. The aircraft is built from wood and fiberglass, with aircraft fabric covering.〔〔 The Annebula uses a completely new single-spar wing with Prue-type trailing edge dive brakes. The airfoil is a NACA laminar flow type of varying section over the span, starting at the wing root as a NACA 64(3)-618, becoming a NACA 64(3)-615 by mid-span and then a NACA 4412 at the tip. 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.〔〔 The fuselage was also extensively redesigned, with a new shaped nose, a new vertical fin with twice the area and a new fuselage shape aft of the wing. Landing gear is a monowheel.〔 Only one Annebula was built.〔〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Leonard Annebula」の詳細全文を読む スポンサード リンク
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