The structure of the fuselage is a conventional alloy construction (non-pressurized fuselage).
The structure of the wing is new technology. While a conventional wing has a main and a secondary spar, ribs and stringers and sheet metal skin – rivited together – the Dornier 228 wing structure is a box formed from four integrally milled alloy panels. Leading edge is conventional alloy sheet metal with ribs and stringers, trailing edge and fowler flaps are made from Cevlar.
Square cross-section and volume
- Allow for large operator console(s) and still guarantee safe egress path
- Floor structure offering several spot for sensors installation without a need for structural reinforcements
- Flat bottom and side for easy sensors integration and low fuselage interference
- Retractable gear allowing for unobstructed 360° radar scan
- Aft cargo area configurable and accessible in flight (drop-hole possible)
- 30 second quick change pax/cargo door
- Roller door, openable in flight (optional)