Raptor 3

Raptor 3 was the designation of a Raptor deployed to scout the planet Kobol in the episode Kobol's Last Gleaming, Part II. It was destroyed with all hands (including its pilot, ECO, and at least four colonial marines) by collision with a Cylon Raider almost immediately upon entering orbit.

crew member handling electronic countermeasures of a craft; ECOs are standard crew aboard Raptors (see: ECO)