Stratolaunch's Mammoth Carrier Aircraft Nails Fourth Test Flight

This is flight Number four for Startolaunch's massive airplane, known as Roc. This successful test flight takes the aircraft one step closer to supporting the launch of the company's first hypersonic vehicle.
Stratolaunch massive carrier aircraft completes fourth test flight 6 photos
Photo: Stratolaunch/Twitter
Roc carrier aircraftRoc carrier aircraftRoc carrier aircraftRoc carrier aircraftRoc carrier aircraft
With a wingspan of 385 feet (117 meters), Roc is the world's largest airplane. Powered by six Boeing 747 engines, the carrier aircraft took to the skies on February 24th, at 3:23 p.m. EST from the Mojave Air and Space Port, California.

Roc flew for almost two hours and climbed up to 15,000 feet (4,572 meters). Compared to its last test flight (which took place in January), the airplane spent less time in the air, and it reached a lower altitude.

That's because the team did not focus on endurance, speed, or cruising altitude this time. Instead, pilots tested the landing gear. This was the first time the aircraft actually managed to successfully retract and extend its full landing gear. Roc's performance and handling characteristics were also evaluated during the flight.

"Today's successful flight demonstrates and validates improvements to the carrier aircraft's systems and overall flight performance," said Dr. Zachary Krevor, Stratolaunch President and Chief Operating Officer.

The company has been improving the capabilities of its carrier aircraft in order to better prepare it for the upcoming launch of the rocket-powered Talon-A hypersonic vehicles.

"The full landing gear retraction and extension brings the carrier aircraft closer to operational status, a milestone that is necessary to ready the aircraft for Talon-A separation and hypersonic flight tests later this year," explained Krevor in a statement.

Talon-A vehicles, which will be launched from Roc, are reusable testbeds designed for hypersonic research, experiments, and operational missions. They're capable of flying at speeds higher than Mach 5, and they can also carry various payloads.

Stratolaunch is continuing to work on system integration for two Talon-A test vehicles, the TA-0, and TA-1. A third vehicle, the TA-2, is currently under development. Once completed, this will be the first fully reusable hypersonic test vehicle.

The company plans to start hypersonic flight testing later this year. Stratolaunch estimates that it will start delivering services to both the government and commercial customers next year.

If you liked the article, please follow us:  Google News icon Google News Youtube Instagram X (Twitter)
press release
About the author: Florina Spînu
Florina Spînu profile photo

Florina taught herself how to drive in a Daewoo Tico (a rebadged Suzuki Alto kei car) but her first "real car" was a VW Golf. When she’s not writing about cars, drones or aircraft, Florina likes to read anything related to space exploration and take pictures in the middle of nature.
Full profile


Would you like AUTOEVOLUTION to send you notifications?

You will only receive our top stories