Programme advances to engine fine-tuning phase

OBERPFAFFENHOFEN — The first Dornier Do228 NXT has successfully completed initial engine ground runs, marking a key step in the development and production of the next-generation aircraft.

ENGINE TESTING PHASE UNDERWAY

Milestone supports progression toward flight readiness

The ground runs form part of the early testing phase, validating engine integration and system performance ahead of further development milestones. The programme will now move into detailed engine fine-tuning.

POWERPLANT AND PERFORMANCE

Turboprop configuration supports STOL capability

The aircraft is powered by two Honeywell TPE331-10 engines, each delivering 579 kW (776 shp). The engines feature a single-shaft design, where the compressor, turbine and propeller operate on a shared shaft.

This configuration enables rapid thrust response, supporting short take-off and landing (STOL) performance and operations in demanding mission environments.

PROGRAMME PROGRESSION

Focus shifts to calibration and performance optimisation

Following the initial ground runs, the development team will focus on engine calibration to ensure performance, efficiency, and operational reliability. This phase is critical in preparing the aircraft for subsequent testing stages.

AIRCRAFT ROLE

Multi-role platform targeting specialised operations

The Do228 NXT is positioned as a versatile multi-role aircraft, suited to applications including regional transport and specialised mission operations where STOL capability and rapid response are essential.