gm1

Hi, After numerous researches, I tried to find if the ju-88 S-3 used GM1 operationally but I can't find anything. I bought a pack with some ju-88 manuals and came across those two informations : 1) In allgemeine Angaben of ju-88 A-4 (stand of march 1944) there is a table with ju 88 manuals and...