Revolutionizing Flight: GA-ATS and AEE Launch the Cutting-Edge Do228 NXT Engine Interface Unit (EIU)
General Atomics AeroTec Systems GmbH (GA-ATS) has teamed up with AEE Aircraft Electronic Engineering GmbH (AEE) to enhance the Engine Interface Unit (EIU) and the Central Warning System (CAWS) for the next-generation Do228 NXT specialized mission aircraft. The aircraft manufacturer and the avionics specialist from Germany have now formalized their mutual agreement.
The EIU serves as a crucial interface within the aircraft, linking the engines to the aircraft management system. It gathers and assesses engine parameters, level indications, and flap statuses, transmitting this data to the cockpit displays. The CAWS ensures that cockpit alert messages are delivered consistently. Additionally, the Do228 employs various smaller components from AEE, including thermal controllers, diverse relay boards, voltage monitors, current meters, and more.
A thriving long-standing partnership progresses
AEE had previously designed the EIU for the Do 228 NG aircraft before its market introduction in 2010. Due to the unavailability of essential components, the current requirement for a comprehensive redesign presents an opportunity to enhance the EIU’s functionalities with numerous innovative features and upgrades. For the EIU renovation, the Do228 original equipment manufacturer (OEM) selected AEE given its vast experience in developing and producing advanced electronic systems within the aviation sector, particularly in engine interface solutions.
“As a supplier for over 30 years for the Do228, we’re honored to maintain and expand this fruitful collaboration, now with General Atomics AeroTec Systems as the new Type Certificate holder,” notes Lukas Hamm-Riff, AEE Accountable Manager EASA Part 21G & Part 145. “Both systems are being designed in accordance with the Design Assurance Level (DAL) B. Manufacturing and maintenance will be carried out under our EASA Part 21G and Part 145 certifications, respectively.”
“With the commencement of production for the Do228 NXT, it is crucial for us to collaborate with reliable local partners to ensure a stable supply chain that effectively meets our clients’ needs,” states Erik Bollen, GA-ATS Managing Director. “We are thrilled that, following decades of successful collaboration with AEE, we can continue to strengthen this partnership and jointly advance the Do228’s revival.”
Technical Improvements and Key Enhancements
The reimagining of the Engine Interface Unit introduces several key performance upgrades, streamlining the operation and management of the new Do228 NXT:
· Additional A429 Input – The revamped EIU will feature an additional A429 input to accommodate future integration with the advanced fuel system. It will also manage the pressure refuel logic once the new setup is configured.
- Emulation of Speed Switches – The unit will replicate the functions of speed switches used for automatic engine starting and ignition. This eliminates the need for separate speed switches within the aircraft, simplifying installation and maintenance.
- Analog Sensor Calibration – The EIU will now support the calibration of analog sensors, reducing the likelihood of errors and preventing signals from deviating outside factory tolerance limits.
Cost-effective, backward-compatible, and future-ready EIU
The upgraded Engine Interface Unit provides numerous essential benefits for clients. A primary advantage is complete backward compatibility, ensuring that the new unit serves as a direct form-fit-function replacement without requiring modifications to existing wiring or configurations. The future-ready design guarantees the enhanced EIU is fully compatible with the forthcoming fuel system, establishing it as a sustainable solution for advancing aircraft technology.
Another significant benefit is cost efficiency, as the removal of speed switches leads to reduced component expenses and lower overall maintenance costs. Ultimately, improved sensor flexibility allows for the calibration of analog sensors, resulting in greater adaptability when altering or substituting these components. This enhances reliability and operational efficiency for aircraft operators.
Do228 NXT as an advanced multirole platform
This partnership between General Atomics AeroTec Systems and AEE Aircraft Electronic Engineering underscores their commitment to innovation and continuous improvement in aviation technology, positioning the Do228 NXT as an advanced multirole platform. The newly designed EIU will ensure greater efficiency, reliability, and cost-effectiveness for Do228 NXT aircraft operators worldwide. The aircraft is equipped to perform special mission flights and light transport operations, distinguished by its adaptable cabin layouts, STOL capability, and robust construction.
