▁relationship ▁to ▁the ▁earlier ▁Me ▁ 2 0 9 . ▁ ▁The ▁R LM ' s ▁ 8 - 2 0 9 ▁air frame ▁number ▁assigned ▁to ▁Mess ersch mitt , ▁for ▁its ▁pair ▁of ▁post - J uly ▁ 1 9 3 8 ▁design ation ▁Me ▁ 2 0 9 ▁air frames , ▁was ▁used ▁for ▁two ▁projects ▁during ▁the ▁late ▁ 1 9 3 0 s ▁and ▁early ▁ 1 9 4 0 s . ▁The ▁first ▁Me ▁ 2 0 9 ▁was ▁a ▁single - engine ▁air ▁speed ▁record ▁plane ▁for ▁which ▁little ▁consideration ▁was ▁given ▁to ▁adaptation ▁for ▁combat . ▁ ▁Design ▁and ▁development ▁The ▁second ▁use ▁of ▁the ▁Me ▁ 2 0 9 ▁design ation ▁was ▁for ▁a ▁proposal , ▁in ▁ 1 9 4 3 , ▁to ▁make ▁a ▁heavily ▁modified ▁version ▁of ▁the ▁B f ▁ 1 0 9 . ▁This ▁Me ▁ 2 0 9 ▁would ▁comp ete ▁against ▁F ock e - W ulf ' s ▁high ▁performance ▁F w ▁ 1 9 0 ▁D - 9 ▁and ▁Ta ▁ 1 5 2 ▁f igh ters . ▁Like ▁these ▁en hanced ▁versions ▁of ▁Kurt ▁T ank ' s ▁design , ▁the ▁new ▁Me ▁ 2 0 9 ▁would ▁share ▁most ▁of ▁its ▁air frame ▁with ▁a ▁proven ▁model , ▁in ▁this ▁case ▁the ▁B f ▁ 1 0 9 G . ▁ ▁Unfortunately ▁for ▁the ▁design ▁team , ▁the ▁Me ▁ 2 0 9 ' s ▁proposed ▁DB ▁ 6 0 3 A ▁engine