Hi Jochen Prien,
I have information on the losses of 4 Ventura of JG 26 of the book " The JG 26 War Diary vol. 2 1943-1945" 1998.
21/04/43 - Galland W.F. - Ventura - NE of Adds Est NW of Abbeville - conf.
21/04/43 - Galland W.F. - Ventura 10-20Km od Adds Est - conf.
21/04/43 - Stammberger - Ventura - N. of Abbeville - no
21/04/43 - Sternberg - Ventura - Acheux - conf.
I don't have other data.
I wait to have helped.
Hugs,
E. Brettas
www.avesdobrasil.com.br
Bird of Brazil in Watercolor