Categories
Sustain

Sustainable Aviation Fuels – SAF

To get an overview about SAF and what it means for aviation and the life cycle greenhouse gas emissions, the US department of Energy offers information for intense understanding and to monitor the efforts done and the efforts ahead.

SAF Jet-A types are coming to the market. Although the hydrocarbons are fairly similar, the difference between classic Jet-A from fossil sources and SAF types is in it’s origin. Fossil or grown cycle economy.

The RED A03 Jet-A engine is operated by our own ECU/FADEC and can be adjusted to local SAF types for maximum fuel efficiency. 

Categories
Sustain

Hybrid Vision

Hybrid systems in aviation

HYBRID in aviation is the combination of conventional engines and electric drive systems.

If the conventional side is SAF capable, the result is a “net-zero” solution optimised for the mission profile.

The key to sucess is the software combining the control abilities of the conventional side with the requirements of the electric drive and the battery management.

Ampaire Inc. had it’s maidenflight with such a system in November 2022. Please feel free to ask for details.

The electric side of the concept provides the extrapower required for take-off. Three ground infrastructure scenarios are dominating the options:

  1. There is no charging infrastructure on the target airport. In this scenario the batteries are recharged during cruise flight and the hybrid aircraft may take-off from the airport combining electric and conventional power. This also is the solution for fast turn-around missions.
  2. There is limited charging infrastructure on the target airport or the mission requires extra energy. The inflight charging may be reduced and the batteries are charged on the ground. 
  3. The target airport offers perfect charging infrastructure. The hybrid aircraft is landing with the batteries discharged. Ground infrastructure allows charging until the hybrid aircraft is ready to go again. This is the maximum payload and airspeed mission.