▁he ▁was ▁forward ed ▁to ▁Jag dst aff el ▁ 1 . ▁He ▁scored ▁his ▁final ▁victory ▁with ▁them , ▁on ▁ 1 7 ▁September ▁ 1 9 1 6 . ▁ ▁After ▁an ▁assignment ▁with ▁Jag dst aff el ▁ 4 , ▁Hö h nd orf ▁returned ▁to ▁test ▁pilot ▁duties , ▁as ▁well ▁as ▁instruct ing ▁at ▁Val enci ennes . ▁On ▁ 1 5 ▁August ▁ 1 9 1 7 , ▁he ▁was ▁selected ▁to ▁command ▁Jag dst aff el ▁ 1 4 . ▁He ▁died ▁in ▁a ▁flying ▁accident ▁on ▁ 5 ▁September ▁ 1 9 1 7 ▁while ▁testing ▁one ▁of ▁his ▁own ▁designs , ▁the ▁A EG ▁D . I . ▁ ▁S ources ▁of ▁information ▁ ▁References ▁ ▁A bove ▁the ▁L ines : ▁The ▁A ces ▁and ▁F ighter ▁Units ▁of ▁the ▁German ▁Air ▁Service , ▁Naval ▁Air ▁Service ▁and ▁Fland ers ▁Marine ▁Corps ▁ 1 9 1 4 ▁- ▁ 1 9 1 8 ▁Norman ▁L . ▁R . ▁Fran ks , ▁et ▁al . ▁Gr ub ▁Street , ▁ 1 9 9 3 . ▁, ▁. ▁ ▁Early ▁German ▁A ces ▁of ▁World ▁War ▁I . ▁Greg ▁Van W y ng arden , ▁Harry ▁D emp sey . ▁O sp rey ▁Publishing , ▁ 2 0 0 6 . ▁, ▁. ▁ ▁Category : 1 8 9 2 ▁birth s ▁Category : 1 9 1 7 ▁death s ▁Category : Pe ople ▁from ▁P ots dam - M ittel mark ▁Category : Pe