Anvil-III over North Sea oil platform
Autonomous Systems Stavanger · North Sea PROJECT / 01 — 04

Anvil-III
Modular Release System

Adaptive payload release mechanism for drones. Engineered for offshore resupply, emergency deployment, and maritime operations in the North Sea.

Payload
5 kg
Deploy time
<100 ms
Partner
SDC
Year
2026
IN DEVELOPMENT
Back to portfolio MONTYFORGE / PORTFOLIO / ANVIL-III

A release mechanism built for the real world — not the test bench.

The North Sea is one of the most demanding operating environments for autonomous systems. Platforms are remote, weather is hostile, and supply chains are expensive. Anvil-III is a modular payload release system designed to let drones deliver cargo to offshore installations where conventional logistics are too costly or too slow.

The core problem: existing drone release mechanisms are either too rigid (fixed payload geometry), too slow (manual trigger latency), or not reliable enough under the vibration and temperature extremes of maritime operations. Anvil-III solves all three.

The mechanism accepts any payload shape up to 5 kilograms through an adaptive clamping geometry. Release is triggered via MAVLink command and executes in under 100 milliseconds — fast enough for precision delivery even under crosswind conditions. The system has been developed in collaboration with Scandinavian Drone Company for integration with their offshore drone platform.

Currently in active development and field testing. First operational deployments scheduled for North Sea resupply runs in 2026.

Technical specifications

Engineered to spec,
proven in the field.

Payload capacity
5
kilograms
Deploy latency
<100
milliseconds
Payload geometry
Adaptive clamping
Any payload shape
Interface
MAVLink / PWM
PX4 + ArduPilot compatible
Full spec sheet
Trigger protocol MAVLink DO_SET_SERVO / PWM signal
Operating temperature −20 °C to +55 °C
Ingress protection IP54 rated (salt spray resistant)
Actuation High-torque servo + spring assist
System weight ~320 g (mechanism only)
Mounting standard Universal drone belly plate · M3/M4
Firmware PX4 v1.14 / ArduCopter 4.x
Manufacture FDM (ASA / PETG-CF) + CNC aluminium
Design software Autodesk Fusion 360
Status IN DEVELOPMENT · 2026
Background

Offshore logistics is a
billion-dollar problem with a drone-shaped solution.

Each vessel callout to deliver parts, tools, or medical supplies to an offshore platform costs thousands of euros. The North Sea fleet makes hundreds of these callouts per year. Drone delivery eliminates most of them — but only if the release system is reliable enough to trust with critical cargo over open water.

Anvil-III was designed from the ground up for this environment. Where existing mechanisms fail due to corrosion, icing, or payload incompatibility, Anvil-III uses an adaptive geometry that grips any shape and a sealed, thermally stable actuation system that works in subzero conditions.

Development is ongoing in partnership with Scandinavian Drone Company, who operate an approved BVLOS (Beyond Visual Line of Sight) platform over the North Sea. First live operational deployments are scheduled for 2026.

Development timeline
Q1 2025
Concept & requirements definition
Offshore logistics analysis · payload envelope study
Q2 2025
Mechanism design — Anvil-I / II
First two iterations · fixed geometry · benchtop testing
Q3 2025
Adaptive clamping geometry
Anvil-III concept · FEA analysis · load path validation
Q4 2025
MAVLink integration & environmental sealing
PX4 plugin · IP54 enclosure · salt spray chamber tests
2026
Field deployment with SDC
North Sea operational trials · ongoing iteration