Several NASA astronauts, plus Boeing test pilot Chris Ferguson, recently participated in a training session at Cape Canaveral, practicing how they would evacuate from the Atlas 5 rocket’s launch pad in the event of a countdown emergency.
Strapped into patented harnesses, the astronauts rode zip lines leading from the 172-foot-level (52-meter) of the Crew Access Tower at Cape Canaveral’s Complex 41 launch pad to a point around 1,300 feet (400 meters) away, where an armored Mine-Resistant Ambush Protected vehicle waited to carry them away from the pad.
The commercial off-the-shelf zip line evacuation system was installed by Boeing and United Launch Alliance for astronauts and pad workers to escape a dangerous emergency during final countdown procedures ahead of launches of Atlas 5 rockets carrying CST-100 Starliner crew capsules.
The function of the zip lines is similar to the purpose of slidewire baskets used on NASA’s former shuttle launch pads at the Kennedy Space Center. In the case of a countdown emergency before a shuttle launch, crews would ride the slidewire baskets to an M113 armored personnel carrier, which they would drive to safety.
Astronauts riding the zip lines from the Complex 41 launch pad can reach top speeds of up to 40 mph (64 kilometers per hour).
The United Launch Alliance Atlas 5 rocket lifted off from California at 10:30 a.m. local time (1:30 p.m. EST; 1830 GMT) today to deliver the sharp-eyed WorldView 4 satellite into space to collect best-in-the-industry, 31-centimeter-resolution commercial imagery for retail. Follow the mission in our live journal.
With lingering uncertainly about when new commercial crew spaceships will be ready to launch humans, NASA Administrator Jim Bridenstine said Thursday the space agency will replace a Japanese astronaut with a U.S. space flier on the next Russian Soyuz launch to the International Space Station. He added that it remains in NASA’s interests to pay Russia for one or more additional Soyuz seats next year to ensure the station remains continuously staffed with at least one American.
The first launch of a U.S. Space Force mission since the establishment of the new military service is planned Thursday, when a United Launch Alliance Atlas 5 rocket is set for liftoff from Cape Canaveral with a billion-dollar jam-resistant communications satellite designed to ensure national leaders remain connected with the armed forces.