You are thinking of "combi" aircraft. In North America, you see a lot of them operating in Northern Canada and Alaska. https://en.wikipedia.org/wiki/Combi_airc

You are thinking of "combi" aircraft. In North America, you see a lot of them operating in Northern Canada and Alaska. https://en.wikipedia.org/wiki/Combi_aircraft https://en.wikipedia.org/wiki/Combi_aircraft