Research/Underwater Mothership R.S.V. Avala + Minisub + Diving Bell + Heli + ROV with Moon Pool

Uploaded · July 13, 2026

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Author: 454SS

Last revision: 21 Oct, 2025 at 02:01 UTC

File size: 5.46 MB

On Steam Workshop

Description:

BACKGROUND

Launched in September 2021, the R.S.V. Avala is the fastest full-size RSV (Research/Survey Vessel) of OMUA (Oceanic Marine Underwater Agency), a (fictional) multinational marine and research agency. Designed specifically for projects requiring a quick deployment, the Avala can serve as the base of operations for an array of worldwide marine research projects in all types of conditions. Equipped with a rear deck moon-pool, the Avala has dive capabilities with the on-board Lil’ Scut II submersible) and remote controlled SAAP mC-FI. The rear helipad houses a Ray LX-36 Micro Gyrocopter, and the stern cradles an AB Marine 10-AB RHIB. The RHIB and helicopter can signal the Avala to enable the AP and automatically come to their current location. The cargo deck features ISO standard container slots and can fit up to 6 containers. The Avala was built as a luxury vessel in as well as a work ship. The vessel contains private luxury living quarters, a mess deck with pool table and bar, a sundeck with hottub, an operations room, a conference room, a laboratory, an infirmary, a decompression chamber and a dive room. As with all OMUA vessels, all systems are designed to be operated by a 1-man crew, in case of emergencies. A standard operations crew of 12 and up to 25 other staff.

SPECIFICATIONS

Length: 42m / 138′
Cost: $405,000
Power: 5 x Large Diesel Engines + 3 x Medium Electric Motor Drive
Drivetrain: 3 x Huge propellers w/ automatic clutch + 2 x side thrusters
Mass: 53 tons (Dry Weight)
Top Speed (Diesel + Electric Power): 26 knots (@ 100% Fuel)
Range: 200km
Generator: 2 x Medium Diesel Engines
Diesel Fuel Capacity: 278,000L
Jet Fuel Capacity: 1800L
Crew Cabins: 4
Crew areas: Bridge, crane control room, operations centre, captain’s quarters, mess deck, VIP crew cabins, laboratory, meeting room/director’s office, diving room with airlock, decompression chamber, infirmary, crew quarters, generator room, engine room.
Multi-vehicle attachments: Ray LX-36 Micro Gyrocopter, AB Marine 10-AB RHIB, a Lil’ Scut II Submersible and ROV
Equipment: Battery operated manned submersible, remote winch operated ROV, unmanned underwater exploration gear (camera/light and mag-all)

FEATURES

Bridge Features

GPS map
Obstacle and depth warning and avoidance system
Night-vision heads-up display
Sonar laser depth seeker
Built-in and aux radios
2 x radar systems (scanning and map)
2 x automatic anchor systems
Emergency beacon locator system
Trip computer
Camera station
Advanced touchscreen waypoint autopilot w/ collision avoidance
4 x flares and emergency alarm
Controllable spotlight

Vessel Features

Hybrid power (diesel + electric) for max speed
Rear deck moonpool for diving operations and lowering equipment with the gantry crane
Diving room with airlock
RHIB and helicopter can engage Avala autopilot to come to current location
2 x active stabilization systems (fins and propellers)
Weapons armory (with lock code) for emergencies
Backup battery
2 x side thrusters for manuverability
Automatic generators (with backup batteries) and manual start override
Detailed engine room with overrides and controls
Engine room fire suppression system
Automatic bilge pump system
Bow-stern, Port-Starboard ballast tanks with automatic levelling option
Controllable water canon on the bow
Automatic lighting using player sensor
Programmable thermostat
Fire hose system on bow and stern
Refuelling station and recharging station for deployable diesel boats at the stern
Helicopter servicing station with recharging, repair, and refuelling for both jet and diesel helicopters
Scuba, arctic and fire gear + lots of equipment throughout
Large gantry crane on the stern (with controls in the crane control room)
Deck jib crane (with controls in the crane control room)
Huge winch on the gantry crane (w/ controls in the crane control room and the operations centre + remote control)
Crane securing functions (for storms)
6 x ISO standard cargo container bays with connection monitoring system

Optimisation Features

Major physics optimisation and physics flooders to reduce lag
No modded blocks
Tested online

INSTRUCTIONS

Turn on Main Power Breaker in the bridge. Then turn the engine start key and the systems start key.

TIPS

The ship is designed to be able to be disembarked with a helicopter or skiff while it is on Autopilot. The AP system has a timer to allow disembarkation, as well as a toggle-able "Boat Launch Sensor" and "Helipad Landing Sensor" that allow for your return onto the ship assuming it has not reached its destination and stopped. These toggle-able buttons enable a laser, that if crossed with your helicopter or boat, will stop the ship, allowing you to board.