Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Small Alt Build Small Builds Space 6861 – Back A May 4, 2020May 12, 2023 Master Builder 2989 Views From: 6861: X-1 Patrol CraftName: X-1 Rocket Heavy 1Instructions: View PDF | Download .io File ContributionsName, PDF and .io file submitted on June 1, 2020 by: pfunkadunk