In the light turboprop market, jet engines are surprisingly primitive. The most common engine family (PT6A) was created in the 1970s. Today, the engines cost ha

In the light turboprop market, jet engines are surprisingly primitive. The most common engine family (PT6A) was created in the 1970s. Today, the engines cost half a million dollars new because the production volumes are tiny and the liability costs are huge. I don't see a reason why electric airplanes will avoid either cost issue.