6 7 ▁establish ments ▁in ▁New ▁York ▁( state ) <0x0A> </s> ▁The ▁M ist ral ▁is ▁a ▁German ▁single - place ▁par ag l ider ▁that ▁was ▁designed ▁and ▁produced ▁by ▁Sw ing ▁Fl ugs port ger ä te ▁of ▁Land s ber ied . ▁It ▁is ▁now ▁out ▁of ▁production . ▁ ▁Design ▁and ▁development ▁The ▁M ist ral ▁was ▁designed ▁as ▁an ▁intermediate ▁gl ider . ▁A ▁two - se at ▁tan dem ▁version ▁was ▁also ▁developed ▁for ▁flight ▁training , ▁the ▁M ist ral ▁T win ▁ 1 ▁and ▁T win ▁ 2 . ▁ ▁The ▁design ▁progress ed ▁through ▁seven ▁gener ations ▁of ▁models , ▁each ▁impro ving ▁on ▁the ▁last . ▁The ▁earlier ▁models ▁are ▁each ▁named ▁for ▁their ▁approximate ▁project ed ▁wing ▁area ▁in ▁square ▁metres ▁and ▁the ▁M ist ral ▁ 7 ▁for ▁its ▁relative ▁size . ▁ ▁Vari ants ▁ ▁M ist ral ▁ 2 ▁M ist ral ▁ 2 ▁ 2 2 ▁Small - s ized ▁model ▁for ▁l ighter ▁pil ots . ▁Its ▁ ▁span ▁wing ▁has ▁a ▁wing ▁area ▁of ▁, ▁ 5 2 ▁cells ▁and ▁the ▁aspect ▁ratio ▁is ▁ 5 . 2 : 1 . ▁The ▁pilot ▁weight ▁range ▁is ▁. ▁The ▁gl ider ▁model ▁is ▁Deutsch er ▁H äng eg le iter verband ▁e . V . ▁( D H V ) ▁ 1 - 2 ▁cert ified . ▁M ist ral ▁ 2 ▁ 2 4 ▁Mid - s ized ▁model ▁for ▁medium - weight ▁pil ots