Civil Aerospace & Avionics
SEA has an enviable track record of designing and manufacturing high-integrity electronic equipment and systems for aerospace and defence applications. We pride ourselves in our ability to add value to any customer development programme.
Our knowledge and experienced engineers provide a best-practice programme management approach, enabling truly impressive benefits in speed, flexibility and quality of electronics and system development.
Our experience
SEA specialises in the design, development and delivery of systems that combine diverse modern sensor technology, sophisticated signal and data processing techniques and powerful and reliable computing platforms.
- Vibration Recording and Monitoring
We offer comprehensive, in-house design and production expertise for simulation and training solutions backed up by a proven cross-industry track record.

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Leading new architectures and connectivity
Read more on Wireless Sensing Technology for Aerospace Applications - The Way Forward
Delivering technology and systems
Innovating in sensor technology
Internal processes and product/project assurance include:
AS/EN9100 quality standard certification
ISO (00:2000 accreditation
ISO 9000:3 UK TickIT for software accreditation
SC21 supply chain initiative in conjunction with ADS (formerly SBAC)
Safety Management System for safety critical applications
Trained company auditors to AS/EN9100
Domain Skills
Systems development - high-integrity electronics
SEA's capability covers the full life cycle from feasibility studies, through simulation, prototype development and trials, to production management and post delivery support. Equipment can be supplied to commercial, military or aerospace qualified standards.
System Integration
We offer bespoke and COTS systems development, with expertise in embedded real-time data and digital signal processing systems. Our structured approach used appropriate tools for requirement analysis and system partitioning, eg UML SysML, Object Oriented Analysis/Object Oriented Design and RTSASD.
Hardware Design
Data and DSP systems using a range of processor devices from high-performance processor engines to ultra-low power micro controllers; use of hardware interface standards (eg VME, SpaceWire, RS422, PCI, CAN bus, Rocket IO, Ethernet, RF wireless); ASIC and FPGA designs for high-performance, algorithm-specific designs and general digital implementations through fully verified VHDL.
Software Capability
Software modelling using UML and Use Case modelling; high-level languages (eg JAVA, C, C++, C~); assembler languages (eg Intel x86, Motorola 68K, DSP56000, analogue devices DSP); real-time operating systems (eg VXWorks, QNX); host operating systems (eg Windows, UNIX, VMS).
SEA provides tailored levels of analysis, configuration management and build control. Application specific analyses are also available using MatLab/Simulink modelling, ModelSIM simulation and Spice modelling, as appropriate.
Ground Support Equipment (GSE)
We offer a total capability to provide GSE for aircraft development to a range of testing from unit level, through systems integration, to aircraft check-out.
Emphasis is placed on a cost-effective approach to GSE development and supply through:
- maximum use of COTS hardware/software to minimise development cost and schedule
- well-tailored hardware and software developments for specific application needs
- systems approach, providing an equipment to fully meet customer requirements
- understanding of ARINC protocols
- a modelling and simulation capability and flow-through into the EGSE for hardware/software in the loop testing
- use of GSE Toolkit utilising standard architecture, co-developed by SEA
SEA regularly deploys this capability in the space domain. Other developments include military radar system test equipment, spaceborne radar EGSE software, radar calibration transponders and supporting EGSE systems for many equipment supply programmes.
Additional Services
- requirements capture, engineering and management
- information management and architectures
- integrated test evaluation and acceptance
- human factors
- systems engineering and integration
- safety assurance
- synthetic environment simulation
- risk assessments