
Dornier Do217-series:

Early on in the night war, it had become obvious that the Bf110 was
not a perfect fighter by any stretch of the imagination. 
Unfortunately for the Nachtjagdkorps, the best available aircraft
for night fighting - the Ju88 - was only being produced in fighter
versions at an extremely lethargic pace.  It was decided to develop
a night fighter version of the Do217 medium bomber as an interim
nachtjager until deliveries of Ju88s were adequate.  The Do217 was
plainly ill-suited to night fighting, with its large size, weight,
and slow speed, but the program was continued anyway.  The first
model to see action during Bomber Command's "true" offensive
(beginning March 5-6, 1943) was the Do217J-2, which had
Lichtenstein C-1 radar installed in a "Mattress" nose array. Other
than the deletion of the bomb bay and redesign of the nose, it was
identical to its bomber ancestors, retaining ventral and dorsal
turrets. Its primary successor, the Do217N-2, increased speed from
304 to 311mph, did away with the turrets, replaced the 4 20mm MGFF
cannon with 4 20mm MG151s, and added 4 similar weapons in a schrage
musik arrangement.  Both versions also had 4 7.9mm MG17s mounted in
the nose.  Production was phased out in late 1943. Here's how to
activate the gun positions:
Do217J-2: <G><5> = dorsal turret
             <0> = ventral turret
Do217N-2: <G><5> = Schrage Musik

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