Bjorn’s Corner: Electric aircraft, Part 5

July 28, 2017, ©. Leeham Co: In the last Corner, we looked at the mass of the propulsion components for a regional airliner. Now we complete the mass estimations for the complete hybrid electric system. We do that for… Read More

Bjorn’s Corner: Electric aircraft, Part 4

July 21, 2017, ©. Leeham Co: In this Corner, we will start looking at the mass of the different components in a hybrid electric propulsion system compared with a classical turbofan propulsion. Our propulsion project is for a regional… Read More

Bjorn’s Corner: Electric aircraft, Part 3

July 14, 2017, ©. Leeham Co: In the last Corner, we developed a hybrid aircraft propulsion system and looked at system efficiencies. Today, we look a bit deeper at how hybrid propulsion can be implemented on an aircraft. What… Read More

Bjorn’s Corner: Electric aircraft, Part 2

July 07, 2017, ©. Leeham Co: In last Corner we could see that battery driven electric aircraft will be for the extreme short-haul. The stored energy per kg battery is 70 times lower than for fuel. In addition the… Read More

Bjorn’s Corner: Electric aircraft

June 30, 2017, ©. Leeham Co: One of the areas I explored while at Paris Air Show last week was electric aircraft technology. With electric aircraft, we mean an aircraft where the propeller/fan is driven my an electrical motor…. Read More

Bjorn’s Corner: Fly by steel or electrical wire, Part 9

September 20, 2019, ©. Leeham News: In our series about classical flight controls (“fly by steel wire”) and Fly-By-Wire (FBW or “fly by electrical wire”) we discussed the FBW flight control system of Embraer’s E-Jet E2 series last… Read More

Bjorn’s Corner: Fly by steel or electrical wire, Part 8

September 13, 2019, ©. Leeham News: In our series about classical flight controls (“fly by steel wire”) and Fly-By-Wire (FBW or “fly by electrical wire”) we discussed the flight control laws of Boeing’s 777/787 and Airbus’ A220 last… Read More

Bjorn’s Corner: Fly by steel or electrical wire, Part 7.

September 6, 2019, ©. Leeham News: In our series about classical flight controls (“fly by steel wire”) and Fly-By-Wire (FBW or “fly by electrical wire”) we discussed the flight control laws which are implemented with classical flight controls… Read More

Bjorn’s Corner: Fly by steel or electrical wire, Part 6

August 30, 2019, ©. Leeham News: In our series about classical flight controls (“fly by steel wire”) and Fly-By-Wire (FBW or “fly by electrical wire”) we now discuss the flight control laws which are used for Classical flight… Read More

Bjorn’s Corner: Fly by Steel or Electrical wire, Part 5

August 23, 2019, ©. Leeham News: In our series about classical flight controls (“fly by steel wire”) and Fly-By-Wire (FBW or “fly by electrical wire”) we now look at practical implementations after discussing the authority of the flight… Read More