My interpretation of a ship version of Observer from Azur Lane, as part of the ongoing Siren War.

From Azur Lane wiki

Observer, like her name implies, seems to be mostly observing events. Sometimes she does take charge, or tells other sirens what to do. Because the other sirens follow her orders without question, she seems to be leader of their operations. The first time Observer was seen was in the main story Prologue Chapter 6. She generally seems to appear during most event, often in hidden chapters, making comments and talking with other Sirens.

Sometimes we do see her take action, like at the end of Divergent Chessboard she also catches the submarines U-557 and U-47, but it's unknown what happens to them. And during Scherzo of Iron and Blood where she gives Bismarck Siren technology and provokes her in using it. But her biggest action was during Swirling Cherry Blossoms when she used her power to disguise herself as Yamashiro in order to partake in the ritual of the Watatsumi. However her plans got interupted by Ember and flees by melding into the scenary.

In Dreamwaker's Butterfly it is stated that there are multiple Observers, but only one per timeline. Which means we should only have met one observer. However we have seen one instance of a Observer a used during a Flashback (Fallen Wings Chapter 11), which might imply a different Timeline observer. However the current Observer also gets referred as Observer a and tester even as Observer in the english version. In the other languages the names also jump around, so it's unknown if it's is intended lore or a mistake.

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Controls

• Throttle: thrust level
• Pitch: thrust direction; Up for backward, down for forward.
• Yaw: steering
• VTOL: Move tentacle
• Trim: move tentacle base
• Activation Group 8: turn off auto-aim turrets
• Activation Group 1: enable drill spike

Notes

• Tentacle have disablePartCollisions set to true, since they caused catastrophic destruction whenever they hit each other.
• When not using turrets, turn them off, as they'll keep themselves at a set angle, which causes problems when turning.
  

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