Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Small Alt Build Small Builds Space 6861 – Back A May 4, 2020October 25, 2021 Master Builder 1971 Views From: 6861: X-1 Patrol CraftName:1 X-1 Rocket HeavyInstructions: View PDF | Download .io File ContributionsName, PDF, and .io file submitted on June 1, 2020 by: pfunkadunk