ASDS PORT CANAVERAL / LONG BEACH • TANDEM 600T DUAL CRANE PICK • OCTAGRABBER RELEASE

Droneship Rocket Booster Quayside Offload & Rigging Audit

Heavy marine rigging standard for post-landing recovery of orbital rocket boosters from autonomous ocean droneships: Octagrabber hold-down release, tandem 600-ton crane lift, 90-degree tailing cradle rotation, and road transporter seating.

Recovery Readiness Score

Pre-Offload Inspection Pending

Hold Points Cleared

0 / 16

Safety Steps Verified

Max Permissible Wind

≤ 15.0 Knots

Crane Hook Aero Drag Limit

Offload Authorization

HOLD • PRE-LIFT AUDIT

Launch Recovery Director

Droneship Berthing & Deck Stability

Quayside 6-Point Mooring & Surge Damping

Autonomous droneship secured with tensioned Dyneema lines; pneumatic Yokohama fenders prevent berth surge oscillations.

Deck Heel & Trim Inclinometer Sign-Off (≤ 0.5°)

Internal ballast tanks adjusted to establish zero deck list; real-time digital clinometers confirm deck inclination within limits.

Tidal Slack Water Window Alignment

Heavy vertical pick scheduled strictly during slack water current (< 0.5 knots) to eliminate hydrodynamic hull roll.

Harbor Blast & Residual Propellant Exclusion Zone

USCG Safety Zone established (500-foot perimeter); infrared FLIR camera verifies tanks cold and vented of volatile gases.

Octagrabber Release & Landing Leg Safing

Octagrabber Hydraulic Hold-Down Clamps Disengaged

Remotely operated hold-down jaws retracted from rocket aft tie-down points; robot reversed into protective parking shelter.

Carbon-Composite Landing Leg Mechanical Lock Pins

Safety locking pins inserted through telescoping strut locking collars on all 4 deployable carbon-fiber landing legs.

Aft Octaweb Grounding Strap & Bonding Check

Copper static ground straps bonded between rocket engine thrust structure and quayside grounding grid (< 1.0 ohm).

Internal GN2 Tank Pressure Verified (2.2 bar)

Wireless transducer reads 2.2 bar internal ullage pressure, ensuring stage rigidity during vertical lift-off from deck.

Tandem Crane Hoist & Horizontalization

Forward Lifting Cap & Hoist Shackle Engagement

Heavy aluminum crane attachment cap bolted to stage-1 interstage ring; four 85-ton Crosby shackles torqued and moused.

Dual 600-Ton Crawler Cranes Load-Sharing Interlock

Main hook and auxiliary tailing crane coordinated via wireless telemetry; hook load variance strictly limited to ±3%.

90-Degree Horizontalization Arc Controlled

Stage rotated smoothly from vertical to horizontal over 25 minutes using aft tailing trunnion cradle with friction dampers.

Real-Time Anemometer Hook Wind Speed Cut-Off

Calibrated sonic wind sensor on boom tip continuously reads < 15.0 knots; lift suspended immediately upon any gust alert.

Transporter Bolster Seating & Tie-Down

Contoured Polyurethane Saddle Bolster Alignment

Booster positioned into forward and aft custom-molded saddle bolsters lined with 70-durometer neoprene anti-chafe pads.

Over-Center Webbed Strap Tension Certification

Wide synthetic hold-down straps ratcheted to 15 kN tension per strap; calibrated load cells confirm equalized compression.

Aft Engine Protective Ring & Nozzle Bags Sealed

Engine cluster wrapped in desiccated Gore-Tex moisture barrier covers with humidity indicator cards verified blue (< 20% RH).

Launch Site Transport Clearance Permit Signed

Port Authority, Space Wing Safety, and Lead Recovery Superintendent execute final transfer-of-custody documentation.

Authorize & Transmit Offload Audit

Submit this checklist directly to the Exspeedite Commercial Space Recovery Command for formal lift sign-off.

Lead Recovery Superintendent / PE *

Commercial Space Email *

Droneship Name & Berth

Booster Serial & Flight Count

Anemometer Wind Speed & Exceptions Log