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Air Delivery & Submarine Cities:
"You asked me how much should go into air transportation or to building new harbors… Well, as for carrying passengers, ships have gone out-- 100 percent-- no longer a way to get from here to there; not even as local ferries. The main tonnage on the sea is going to become the ore carriers; I think they will probably do extremely well. They don’t have loads that are going to pollute our Earth.
“I have often pointed out the factor that if you double the length of a ship you get four times the surface and eight times the volume and twice as much payload-per-skin surface, which is the critical factor. So it might seem that it would also pay for airplanes to get bigger and bigger, but they found that they would have to get the runways longer and longer-- which approaches the point of no return. Obviously, the next phase is vertol, but the United states is not doing much about that as there are too many people making money in the airplane runway business. So we got hooked, into a pattern. The English are the only ones who have garried vertol into being-- I know the Russians did too; but the English are the ones who have shown that vertol is completely practical. One could have very large airships and”
