"It's a very costly operation," he said. "When we saw their design has the engines mounted at the back of the aircraft, and basically the aircraft becomes the protection for the engines ...

In the 1920s and '30s, what we often term as the Golden Age of Aviation we saw radical transformations in aircraft design. We went from the era of the wooden airplane to the all-metal airplane.

Now there’s a database of paper airplane designs, some familiar and some very cool-looking ones we just might have to try. If you folded the usual planes in school, you’ll find those here.