Deflector dish on the Enterprise-B where Captain Kirk lost his life, stardate 9715.5.

The Main Deflector is responsible for removing small navigational hazards from out of the way of the Albion, especially when she is travelling at warp speeds. It was in the Deflector Control room of the Enterprise on her maiden voyage that Captain James T. Kirk lost his life. Deflector arrays can be modified to send out high energy bursts, even simulating photon torpedoes, but this is a dangerous conversion and should only be carried out as a last resort.

Deflector controls in the deflector control room.