摘要 |
<p>A wing including an infill of fixed extent and an outer frame including at least two outer frame member comprises at least one of which includes a pair of associated outer frame portions connected by a telescopic joint comprising a linear joint, said outer frame members connected at a corner joint defined in part by an included angle that may be changed, said the infill bounded by an inner frame having an outwardly disposed peripheral channel supported in relation to the outer frame that at least in part occupies the channel.</p> |