Marine Recovery Platform Control

Marine recovery platform control is the problem of catching or landing a returning rocket stage on a sea platform that is moving in six degrees of freedom under waves, wind, and current. 如何「兜住」一颗火箭？｜ S10E21 introduces it through the 领航者号 Recovery Ship and Long March 10B / 长征十号乙 recovery.

The episode says the ship and rocket need to exchange position, attitude, velocity, and platform-state data at millisecond scale. Dynamic positioning, sea-state limits, ship structural motion, net damping, and guidance all become one coupled control problem: the rocket is not aiming at a fixed pad, and the recovery ship is not merely waiting passively.

Key Claims

• Sea recovery turns platform motion into part of the flight-control boundary condition.
• A DP2-style positioning system can reduce but not eliminate motion; capture still depends on communication and final guidance tolerance.
• Sea-Net Rocket Recovery increases the importance of shipbuilding, offshore engineering, and tension-system control inside reusable launch.

Connections

• 领航者号 Recovery Ship — source platform.
• Long March 10B / 长征十号乙 — returning rocket stage controlled against the moving platform.
• Sea-Net Rocket Recovery — recovery method that makes platform control central.
• Rocket Recovery Route Choice and Reusable Rocket Economics — route and economic context.