Those Magnificent Men in their Flying Machines

There must have been a little motor oil in my tea last Monday at Neverwas Haul, because it's a week later and I'm thinking of all the wonderful engineering projects that "never were." At Castle in the Air, of course, even mechanical marvels are a bit loftier. What a world we would be living in if flying machines like these were as common as iPods and the Toyota Prius!