Airborne Artificial Intelligence and Autonomy

Low Size, Weight, and Power (SWaP) computers for next-generation aircraft. Each computer delivers unrivaled performance and ruggedization for the harshest operating environments.

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DO-178C and DO-254 assurance
DAL A
Integrated modular avionics standard
TSO-C153a
ARINC 653 Part 1 and ARINC 615A
Open
Edge inference and safety-critical boards
Modular
Hardware

Certifiable IMA computers, modular by design

Every H-series computer adheres to DO-160G, DO-254, DO-178C, and DO-297 and is designed to Development Assurance Level (DAL) A.

H1.X Computer

For applications that require redundancy

Architecture
Dual channel
Mass
650 g
Power
20 W maximum
Isolation
Galvanically isolated

Typical applications

  • Cockpit display computer
  • Flight computer
  • Powertrain and motor controller
View datasheet

H2.X Computer

For applications that do not require redundancy

Architecture
Single channel
Mass
350 g
Power
10 W maximum
Isolation
Galvanically isolated

Typical applications

  • Autoflight computer
  • DAA computer
  • Mission computer
View datasheet

H3.X Computer

For data concentrator and battery or fuel cell management applications

Architecture
Single channel
Mass
250 g
Power
8 W maximum
Isolation
Non-isolated

Typical applications

  • Battery management
  • Data concentrator
  • Fuel cell management
  • Powertrain controller
View datasheet

H4.X Module

For Modular Open Systems Approach (MOSA) flight and mission computing applications

Architecture
Single channel
Mass
200 g
Power
8 W maximum
Isolation
Non-isolated

Typical applications

  • MOSA flight computer
  • MOSA mission computer
View datasheet
Software

Operating system and toolchain from a single vendor

Every H-series computer ships with the Hover Real-Time Operating System (H-RTOS), Hover Software Development Kit (H-SDK), and Hover Data Loader (H-DL). Hardware, software, and tools share a single TSO-C153a baseline, so you have no integration gap to close and no separate baseline to maintain.

H-RTOS

ARINC 653P1-6 partitioned real-time operating system

H-RTOS is purpose-built for multi-core 64-bit Arm processors. Its partitioning allows software applications of different criticality to share a single computer.

  • Independent cores, with health monitoring at process, partition, and module level
  • Developed to DO-178C DAL A
  • Robust spatial and temporal partitioning keeps flight-critical and mission software apart
  • Standard APEX interface with all ARINC 653P1-6 required services

H-SDK

Build, configure, validate, and verify

The H-SDK provides everything you need to run software applications on target, plus an emulator for off-target prototyping.

  • Real-time coverage analysis on executable object code
  • DO-330 tool qualification evidence
  • On-target debugging in VS Code
  • API and configuration tool for partitions, schedules, and memory budgets

H-DL

ARINC 615A-4 data loader

H-DL is for uploading and downloading software applications and data, in the lab or on the aircraft while your H-series computer remains installed.

  • Full ARINC 615A-4 compliance, with negotiated TFTP acceleration that remains within the protocol
  • Line-rate gigabit uploads and downloads
  • Hardware-accelerated MD5 verification of every load
  • Scriptable API and VS Code integration
System architectures

A common platform for every aircraft type, crewed and uncrewed

The H-series family of computers covers simplex through quadruplex architectures on transport aircraft, rotorcraft, electric Vertical Takeoff and Landing (eVTOL) aircraft, and uncrewed aircraft. We support manufacturers from safety analysis through certification, with Federal Aviation Administration (FAA) Designated Engineering Representatives (DERs) on staff.

  • H1.XDual channel
  • H2.XSingle channel
  • H3.XData concentrator

Transport aircraft

Retrofit and new designs, including more-electric transport-category aircraft

Advanced Air Mobility

eVTOL aircraft with electric or hybrid-electric powertrains

Uncrewed aircraft

Attritable Uncrewed Aircraft Systems (UAS) and loyal wingman

Competitive advantage

An open, standards-based system architecture

IMA computers from incumbent Tier 1 suppliers offer limited flexibility. You are often forced to work with separate hardware, software, and tool vendors and manage the integration challenges between them. We supply a comprehensive hardware, software, and tool ecosystem with no hidden costs, so you can focus on developing your software applications.

Standardization

Hover

Open, standards-based system

Aligned with the Future Airborne Capability Environment (FACE) and PYRAMID, so software applications port between platforms without a rewrite.

Incumbent Tier 1

Closed, hardcoded system

Proprietary interfaces lock your software applications to a specific vendor, and you are forced to pay them for maintenance and additional features.

Software application IP

Hover

Own the IP

You own the software applications and associated Intellectual Property (IP).

Incumbent Tier 1

Share the IP with the vendor

You share the IP with the vendor, who is free to compete with you.

The ecosystem

Hover

Single purchase

You receive TSO-C153a approved hardware, software, and qualified tools as one comprehensive ecosystem. You integrate only your software applications, using the H-SDK.

Incumbent Tier 1

Multiple purchases

You buy hardware, software, and qualified tools from different vendors and you integrate them and take them through the certification process.

Development tools

Hover

Control over testing

You run software applications and debug on target using a VS Code-based debugger.

Incumbent Tier 1

Opaque testing

Integration, prototyping, and verification and validation testing depend on the vendor.

AI and autonomy

Edge inference for the H-series

We offer an edge inference main processing board that enables airborne Artificial Intelligence (AI) and autonomy on next-generation aircraft. It is compatible with every H-series computer and executes machine learning models deterministically.

Custom neural processing unit

The first known int8 neural processing unit that is capable of running Convolutional Neural Networks (CNNs) and Vision Transformers (ViTs) on the edge. Fully deterministic, with no data-dependent branches, no caches, and no variable-latency math. It tracks at 60 fps while running detection at about 5.5 Hz.

Dissimilar by design

Under ARP4754, the edge inference main processing board is developed to DAL C and the safety-critical main processing board to DAL A. Pairing the two boards addresses regulatory dissimilarity requirements and supports DAL A at the equipment level.

Selected for performance per watt

The Altera Agilex 5 was selected over Field-Programmable Gate Arrays (FPGAs) from AMD and Microchip because of its performance per watt and tensor/Digital Signal Processing (DSP) block architecture. It combines big.LITTLE hard processor cores and programmable fabric on a single device.

Read the technical details
About us

Meet the team behind the H-series

We are avionics, hardware, software, firmware, and machine learning engineers in Cambridge, UK, and Seattle, US, building computers and edge systems for the next generation of aircraft.

Watch our film from the Farnborough International Airshow 2026 to see the H-series and the people behind it.

Join the team

Get in touch with us

Contact our aerospace engineering and certification teams to discuss your system architecture, SWaP optimization requirements, and FAA or European Union Aviation Safety Agency (EASA) certification pathway.

Avionics inquiry form

Describe your program requirements, and our engineering team will respond with a tailored SWaP and redundancy assessment.