- 3 3 ▁as ▁the ▁A ka fl ieg ▁D arm stadt / A ka fl ieg ▁München ▁DM 1 . ▁ ▁Film ▁foot age ▁exists ▁which ▁shows ▁a ▁gl iding ▁test ▁of ▁the ▁aircraft . ▁These ▁tests ▁began ▁in ▁May ▁ 1 9 4 4 ▁at ▁Sp itzer berg , ▁near ▁Vienna . ▁ ▁The ▁DM 1 ▁was ▁built ▁as ▁a ▁single - se at ▁gl ider ▁from ▁steel - t ub ing , ▁p lywood ▁and ▁b ak el ite ▁im pre gn ated ▁p lywood , ▁with ▁a ▁co ck pit ▁in ▁the ▁extreme ▁nose ▁of ▁the ▁j unction ▁of ▁the ▁tri angular ▁main plan es ▁and ▁fin . ▁La unch ing ▁the ▁DM 1 ▁was ▁to ▁be ▁by ▁p ig gy - back ▁or ▁a ero - t ow . ▁ ▁After ▁occupation ▁by ▁U . S . ▁Tro ops ▁in ▁May ▁ 1 9 4 5 , ▁work ▁continued ▁at ▁the ▁DM 1 ▁on ▁beh alf ▁of ▁the ▁U . S . ▁military ▁government , ▁with ▁General ▁Pat ton ▁and ▁Charles ▁Lind berg h ▁visit ing ▁Pri en ▁to ▁see ▁the ▁project . ▁Comple ted ▁in ▁early ▁November ▁ 1 9 4 5 , ▁the ▁DM 1 ▁was ▁sh ipped ▁in ▁a ▁wooden ▁box ▁to ▁Lang ley ▁Field ▁in ▁Virginia ▁where ▁the ▁flow ▁behaviour ▁of ▁the ▁DM 1 ▁was ▁exam ined ▁in ▁the ▁N AC A ▁( National ▁Ad vis ory ▁Committee ▁for ▁Aer onaut ics , ▁for er un ner ▁of ▁today ' s ▁NASA ) ▁full