napisał(a):
Jantar STD 2B year of mfg 1981

If it's 2B than it can't be std, it is just SZD-42 Jantar 2B
Jantar 2B (wingspan 20,50 m) use two airfoils Fx-67K170 / Fx-67K150
If you can read or translate from german go visit this link:
http://www.piotrp.de/webde (PiotrP - Datenbanken - Polnische
Segelflugzeuge)
or in polish:
http://www.piotrp.de/web (PiotrP - Bazy danych - Polskie szybowce)
There is a lot of data about polish gliders


regards
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