Douglas / McDonnell Douglas
Until the 1960s Douglas were the biggest civil aircraft manufacturer in the world and into the 1990s McDonnell Douglas were still in second place. Fortunately this greatness has been noted in 1/400 scale and there are plenty of moulds out there. Sadly they are often pretty hit and miss.
Rest of the New World
I'm Richard Stretton: a fan of 1/400 scale model aircraft and airports. This blog reports work on my model airport dioramas and discussion of the model manufacturers output.