The Hall Ibex is an experimental, American, gull winged, single seat glider that was designed by Stan Hall and first flown in 1968.Said, Bob: 1983 Sailplane Directory, Soaring Magazine, page 43. Soaring Society of America, November 1983. USPS 499-920
Design & Development
The Ibex was designed by Hall to investigate the reduced wetted area of the pod and boom configuration, hands off spiral stability of a gull wing, and the low speed performance of wide NACA slotted flaps. It also features a V tail, of water ballast and a wingspan to comply with FAI Standard Class rules. On one of its first flights the Ibex showed significant tail flutter. Initially Hall considered replacing the tail with a conventional empennage and tailSoaring, November 1967 but ended up moving the ruddervator counterweights from the tips to the roots which eliminated the problem.Soaring, October 1974
Operational history The Ibex was still flying in 1980 and was eventually donated to the National Soaring Museum.
Aircraft on display National Soaring Museum - 1 in storage
Specifications (Hall Ibex)
See also
References
External links The IBEX - designed by Stan Hall