From [Memory Alpha][1]:

> The Picard Maneuver was born out of desperation during the battle. The
> Stargazer, which was damaged, suddenly accelerated into high warp
> directly towards the Ferengi ship. By doing so the Stargazer appeared
> to ship's sensors, for an instant, to be in two places at once. When
> data from the newly-moved ship reached the Ferengi ship's sensors,
> data from its previous position was still arriving, so the Ferengi
> effectively "saw" two Stargazers in different locations.

As I have recalled, the text is correct. This was told by Picard in an episode of *Star Trek: The Next Generation* TV series. And, in the end of that episode, when Picard tried to apply the Picard Maneuver to attack the USS Enterprise D, it was shown on the Enterprise D screen that the Stargazer was at two places for an instant before it was stopped by the tractor beam. Images from Memory Alpha:

![enter image description here][2]

![enter image description here][3]

How could the Picard Maneuver work to confuse sensors from the Warp Era? Isn't it like we rely on light waves to see the warping ship?

> When data from the newly-moved ship reached the sensors,
> data from its previous position was still arriving.

It seems as if data transmission wasn't FTL. If it was, the sensors would never have been able to lock a warping ship's exact location. But we have seen battles at warp speed and sensors detect something from light years away. What's special with the Picard Maneuver which screws sensor readings (even those of a Galaxy-class starship)?


  [1]: http://en.memory-alpha.org/wiki/Picard_Maneuver
  [2]: https://i.sstatic.net/1JqP9.jpg
  [3]: https://i.sstatic.net/jUIdQ.jpg