Helicopter catches rocket falling from space
Catching a rocket with a helicopter likened to ‘supersonic ballet’
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Your support makes all the difference.A satellite launch startup used a helicopter to catch a rocket booster as it fell to Earth on Tuesday, in a first-of-its kind manoeuvre.
The midair recovery took place off the coast of New Zealand, shortly after Rocket Lab’s stage-one booster Electron delivered 34 satellites to orbit.
A Sikorsky S-92 helicopter used a hook to grab the rocket’s parachute line, however it was forced to let it go due to safety reasons.
The rocket then fell into the Pacific Ocean where it was collected by a waiting boat.
Rocket Lab foudner Peter Beck described the task of catching a rocket with a helicopter as being like a “supersonic ballet”.
The California-based company regularly launches 18-metre (59-foot) rockets from the remote Mahia Peninsula in New Zealand to deliver satellites into space.
On Tuesday, the Electron rocket was launched in the morning and sent 34 satellites into orbit before the main booster section began falling to Earth. Its descent was slowed to about 10 metres (33 feet) per second by a parachute.
That's when the helicopter crew sprang into action, dangling a long line with a hook below the helicopter to snag the booster's parachute lines. The crew caught the rocket but the load on the helicopter exceeded the parameters from tests and simulations, so they jettisoned it again.
The event was captured in a live stream, with people at mission control cheering and clapping as the rocket was caught, only to let out a collective gasp and sigh about 20 seconds later.
Still, Mr Beck hailed the mission as a success, saying that almost everything went to plan and that the unexpected load issue was a tiny detail which would soon be fixed, a “nothing in the scheme of things.”
“They got a great catch. They just didn't like the way the load was feeling,” Mr Beck said of the helicopter crew in a conference call after the launch.
He said a detailed analysis should reveal the reasons for the discrepancy in the load characteristics. He said he still hoped the company could salvage some or all of the spent rocket booster, despite it getting dunked in salt water which they'd hoped to avoid.
Rocket Lab named its latest mission “There And Back Again” — a reference to the movie trilogy “The Hobbit” which was filmed in New Zealand.
The company described the brief midair capture at 1,980 meters (6,500 feet) by the helicopter as a milestone. It says making its rockets reusable will enable the company to increase the number of launches it makes and reduce costs.
Elon Musk's SpaceX company designed the first reusable orbital rocket, the Falcon 9, which has since been used to launch astronauts to the International Space Station (ISS).
Additional reporting from agencies.