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Ju 188 C
编辑It was planned all along to skip over a "B model" to avoid confusion with the original Ju 88 B, but in the original planning the A and E models would both be called A's. The Ju 188 C would thus be the next model in line.
The C series was built to the extent of a single example, by modifying one of the few A-1 machines. To this, they added the new power-operated FA 15 turret in the tail. The turret mounted two 13 mm (.51 in) MG 131s, aimed with a double-periscope (top and bottom) system mounted in the cockpit.
This modification would have greatly improved defensive firepower, always lacking on German designs, but reliability was so poor it was decided to abandon the system.
Ju 188 D & F
编辑在1944年初期由于战势日趋恶劣，故决定将A与E型的机身进行修改并移除轰炸瞄准器与前卫型机枪作为侦察机用途，并加装额外油箱使其航程增加到3,400 km (2,110 mi)·
- Ju 188 D-1 侦察机，成员降为3人，整体构造与A-1型颇为类似·[1]。
- Ju 188 D-2 海军侦察机，成员降为3人，安装机鼻雷达的·[2]。
- Ju 188 F-1 侦察机，配备BMW 801 Ds发动机整体构造与E型颇为类似·[3]
- Ju 188 F-2 侦察机，配备BMW 801 Gs发动机整体构造与E型颇为类似·[4]
Ju 188 G & H
编辑One problem with the Ju 88 that carried into the 188 was the lack of internal room for bomb storage. Both carried the majority of their bombload on the outside of the plane on racks under the wing, where it greatly affected performance. This was to have been addressed in the G and H models, which extended the fuselage downward for more room with the addition of a wooden pannier.
This modification also left enough room at the tail to fit a manned turret in place of the C model's remote-control one. However this system proved to be just as limited as the remote-control FA 15, being so small that only gunners could fit into it, and had basically no ability to escape in an emergency. The RLM rejected the manned design and planned on mounting the FA 15 even if it were unreliable.[5] Oddly, the designs still had the nose area extended under the plane for a rear gunner, when this would no longer be needed and its removal would have greatly cleaned up the lines of the plane.
With the Jumo 213s now being sent to fighter production, the Ju 188 G-2 was to use the BMW 801 only, with the reconnaissance conversion known as the Ju 188 H-2. Neither entered production before the war ended.
Ju 188 R
编辑In the summer of 1944, three E models were modified as night fighters with the addition of radar and either four 20 mm MG 151/20s or two 30 mm (1.18 in) MK 103 cannons in the nose. However, the added visibility of the 188 was not useful in the night role, and because the added drag of the radar washed out any speed difference, the Ju 188 R-0 was not ordered.