Bjorn’s Corner: Sustainable Air Transport. Part 35P. Lilium battery cells. The deeper discussion.

Subscription required September 2, 2022, ©. Leeham News: This is a complementary article to Part 35, Lilium battery cells. It discusses the requirement the Lilium jet principle puts on its battery cells and how this is solved, both… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 34P. eVTOL battery cells. The deeper discussion.

Subscription required August 26, 2022, ©. Leeham News: This is a complementary article to Part 34, eVTOL battery cells. It discusses the trickiest system on an eVTOL, the battery system, and its key component, the battery cells. The… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 34. eVTOL battery cells

August 26, 2022, ©. Leeham News: This is a summary of the article Part 34P, eVTOL battery cells. It discusses the main component of the battery system, the battery cell. The Lithium-Ion cells in an eVTOL battery system… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 33P. eVTOL batteries. The deeper discussion.

Subscription required August 19, 2022, ©. Leeham News: This is a complementary article to Part 33, eVTOL batteries. It discusses the trickiest system on an eVTOL, the battery system. While Lithium Ion batteries have come a long way… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 33. eVTOL batteries.

August 19, 2022, ©. Leeham News: This is a summary of article Part 33P, eVTOL batteries. This article discusses the trickiest system on an eVTOL, the battery system. The battery system supplies the energy to the VTOL, and… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 31. Mixed architectures.

August 5, 2022, ©. Leeham News: This week, we look at two eVTOLs that don’t fit the terminology we use; Multicopters, Vectored thrust, or Lift and Cruise. The Vertical VX4 and Archer Maker are Lift and Cruise designs,… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 26. VTOLs.

July 1, 2022, ©. Leeham News: Last week, we finished our discussions around Fuel Cell-based airliners using hydrogen as fuel. We could see the technology has true zero emissions, but the maturity of the many parts needed (hydrogen… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 25. High Temperature Fuel Cell-based 70-seat airliner

June 24, 2022, ©. Leeham News: Last week, we discussed how a High Temperature Fuel Cell (HTFC) could improve the installation of a propulsion system in our 70-seat airliner. We now add this variant to the systems we… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 24. High Temperature Fuel Cells

June 17, 2022, ©. Leeham News: Last week, we looked at the installation effects and efficiencies of the fuel cell systems we discussed in earlier parts of the series. We could see the variants were significantly heavier than… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 23. Fuel Cell-based 70 seat airliner

June 10, 2022, ©. Leeham News: Last week, we looked at the different fuel cell systems that can go into a 70-seat airliner like the ATR 72. In this week’s Corners, we implement these in the aircraft and… Read More