After first putting weight on wheels this spring, the Stratolaunch completed its first taxi tests over the weekend—steering from the cockpit and moving under its own power. Joe Sweat, one of the project's test pilots, said of the event, "It was a lot less intimidating once we had it out there, in terms of how much runway we take up. From a visual standpoint, we had a lot more room than I was anticipating. Getting the airplane moving under its own power was really interesting - just seeing and feeling how the nosewheel steering reacts and how the brakes respond to the inputs."
This is a companion discussion topic for the original entry at https://www.avweb.com/recent-updates/business-military/stratolaunch-takes-first-steps