why 109 and 190 names

[esmiol]

it is the name of the prototype; the first was the 109 because the 109 was devellop with the same technique his predecessor 108.

after the 109 is not the same builder. 109 is messerchmidt. and 190 is Fock wulf.

the fact that O,1,and 9 compose their name... is just a coincidence...

and the 190 and 109 was not the only fighter of the war... just the most know..

just find google or wiki and you will find a lot of infos!