The Germans often times used the variant suffix of a given aircraft as the basis for a nickname. Anything that was an "A" model would be called "Anton" (ie; Ju 87A).
A "B" model would be referred to as "Bertha" (Bf 109B, Ju 87B), I forget what the name for "C" was. ("Clara" I think) "Dora" was a D-model, "Emil" an "E", "Friedrich" "F" and so on. These names were derived from a German phonetic alphabet.
There were also specific names given to specific aircraft:
Do 335 officially called the "Pfeil". (Arrow) But it was also known as the "Ameisenbär". (Ant Eater)
Ju 88 was known as the "Dreifinger" (Three Finger)
Fw 189 was "Das Fliegende Auge" (The Flying Eye)
Do 17 was "Der Fliegende Bleistift" (The Flying Pencil)
Hs 129 was "Der Fliegende Büchsenöffner" (The Flying Can Opener)
Bv 138 was "Der Fliegende Holzschuh" (The Flying Clog) & "Mausiflugzeug" (Mouse Catcher Plane)
Me 262A-2a was the "Sturmvogel" (Storm Bird)
Me 262C was called "Heimatschützer" (Home Defender)
Ju 87G was the "Kanonenvogel" (Cannon Bird) & "Panzerknacker" (Tank Smasher)
Fi 103 or V-1 was a "Kirschkern" (Cherry Stone)
Me 163 was a "Kraftei" (Power Egg)
Ar 234B-2/N Nightfighter was "Nachtigall" (Nightingale)
Fw 190F was the "Panzerblitz" (Tank Lightning)
He 111H-22 + Fieseler Fi 103 was "Parasit" (Parasite)
He 162 "Volksjäger" (People's Fighter) & "Spatz" (Sparrow)
Ju 52 was "Tante Ju" (Auntie Ju)
Fw 190 "Würger" (Butcher Bird)
Many more as well, just can't remember them all! I'll see if I can come up with some German names for US aircraft too.
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