News

Wing Prototype building
Wing Prototype building

After a long time, a more complicated piece of fibre-reinforced plastic construction was once again produced in the FVA workshop.

CFD Workshop
CFD Workshop

CFD can be a critical tool in the design processes as a proper analysis can improve the efficiency of the entire construction.

Tail Wheel Construction and Control
Tail Wheel Construction and Control

Due to the landing gear arrangement of the FVA 30, a tail wheel is required.

Propeller-Tail Interaction
Propeller-Tail Interaction

After the complete sizing and design of the V-tail of the FVA-30, an important effect affecting the tail was studied again in more detail during the last semester: The interaction of the propeller wake with the flowed-around control surfaces on the empennage and the resulting rudder effectiveness significantly influences the verification of longitudinal and lateral stability both in twin-engine operation and in single-engine operation (one-engine inoperative, one-sided propulsion failure) and thus also affects the design of the empennage.

Flight Performance Computer Revision
Flight Performance Computer Revision

The overall propulsion design depends significantly on the performance requirements resulting from the planned flight profile.

Wing Load Comparison with the e-Genius II
Wing Load Comparison with the e-Genius II

In the last article, a first load comparison between the wings of FVA-30 and e-Genius was carried out.

Control Unit & HMI
Control Unit & HMI

The system architecture of the FVA-30 is a continuous evolution driven by the requirements of the various components of the aircraft. Important for the design is not only the electrical powertrain, but also mechanical assemblies such as the trim, avionics and lighting of the aircraft.

Engine Tests: Approval Regulations and Test Design
Engine Tests: Approval Regulations and Test Design

To prepare the engine runs for the EMRAX 228 HV used, we followed the certification regulations of JAR 22 (Section H Subsection Test Bench Runs) and then made a proposal to the LBA (German FAA) for our approach to the engine runs.

Cooling Concept for Motor and Inverter
Cooling Concept for Motor and Inverter

After working out a comprehensive selection of cooling concepts, the choice fell on a conventional concept based on a finned radiator typical of the automotive industry.

Finalization of Weight & Balance
Finalization of Weight & Balance

As planned for some time, the creation of a final Weight & Balance could now be completed.

Wing Load Comparison with the e-Genius I
Wing Load Comparison with the e-Genius I

In order to be able to start planning the wing production, the focus in the area of structure was most recently on the wing load comparison between the FVA-30 and the e-Genius.

Design of the V-tail
Design of the V-tail

To ensure the flight mechanical stability and controllability of the FVA-30, an adapted tail unit and appropriately dimensioned control surfaces are required.

PCM Battery Cooling Simulation
PCM Battery Cooling Simulation

A particular challenge in the development of our battery pack is the design of a fail-safe thermal management system that can mitigate temperature rise during start & climb and prevent undercooling during 4-5 h of range-extender-powered cruise flight at up to 3000 m, where batteries need to be recharged and remain operable, e.g. for a go-around.

Wing Displacement
Wing Displacement

For the FVA-30, the wing geometry and a large part of the fuselage are identical to the e-Genius.

Battery Fire Protection Tests
Battery Fire Protection Tests

In preparation for the final construction of battery pack and housing, we ran first experiments concerning fire protection in the unlikely case of a thermal runaway.

Development of a natural gas range extender system
Development of a natural gas range extender system

At the beginning of the year, the Range Extender team focused on selecting a suitable system architecture.