Rocket Lab’s Electron launches 34 sats but helicopter snag/landing of first-stage only partially works

by | May 3, 2022 | Launches, Satellites, Seradata News, Technology

On its launch from the Onenui Station on Mahia peninsula, New Zealand on 2 May 2022 an Electron KS rocket successfully put 34 small satellites into orbit on a rideshare mission. The rocket’s payload included 24 SpaceBee store/forward Internet of Things (IoT) communications satellites for Swarm Technologies, three E-Space demonstration satellites for a future communications constellation, and TSRI-2 and -3 technology test/signals intelligence satellites. The other spacecraft carried included: Unicorn 2 light pollution monitoring satellite for Alba Orbital, MyRadar-1 is a PocketQube built by Alba Orbital, Aurorasat 1 to test propulsion and de-orbiting technologies, Bro-6, a commercial maritime tracking and signals surveillance mission cubesat for Unseenlabs, and a Copia payload attached to the Electron rocket kick stage testing out power generation technologies. 

Just before capture: View of helicopter’s hook line and parachuting Electron rocket first stage. Courtesy: Rocket Lab

However, an attempt by Rocket Lab helicopter to snag and land a parachuting reusable first stage after its launch use was only partially successful. While the parachute was successfully snagged, in the end, pilot flying the Sikorsky S-92 helicopter released the stage to fall into an unintended sea splashdown due to safety concerns about the dynamics/unexpected load characteristics of the swinging stage. The stage has been recovered to examine its post re-entry condition and what sea water damage has been caused.

Plan of Electron stage recovery by helicopter. Courtesy: Rocket Lab

Comment by David Todd: While this test has been hailed as a success – or at least a partial one – there has to be concern about this technique and its intrinsic dangers given that the helicopter’s rotor blades are very close to parachute lines or drogue lines. By the way, it is interesting that the helicopter pilot elected to drop the stage soon after its capture due to unexpected dynamic effects from the mass distribution of the stage. There will be others looking on closely. ULA plans eventually to use a similar helicopter recovery system to reuse a pod of its Vulcan rocket’s first stage engines. 

 

 

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