Virgin Orbit successfully takes its 747 flying launchpad out for a spin
In the next step on its path to getting its low earth orbit payload launch system up and running, Virgin Orbit successfully took its LauncherOne system out for a spin with an actual rocket attached under its wing.
The company’s specially modified 747-400 carried a 70-foot-long rocket as part of a test flight proving that the carbon-fiber, two-stage rocket works with the plane.
TechCrunch
Virgin Orbit performs first captive carry flight – SpaceNews.com
https://spacenews.com/virgin-orbit-performs-first-captive-carry-flight/