Digger One
From The Stargate Omnipedia
Radio call sign for the original experimental X-301 craft piloted by Teal'c and Jack O'Neill. A simple test in atmospheric flight ended abruptly when Digger One succumbed to Apophis's recall device, programming the ship to take the traitors to Apophis's home world at sub-light speeds. Digger One was eventually rescued by Digger Two.
KEY EPISODE
Tangent - The X-301 is code-named Digger One for its shakedown.