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Show Boosting Air Speed Still Big Problem Washington. Refinements in streamlining, stream-lining, more efficient wings and smaller small-er engines of great horse power are needed before greater speed may be gained by racing planes. Aeronautic experts agree the surface barely has beeu scratched In what Is known as streamlining and aerodynamic aerody-namic efficiency. Much Is to be learned In this regard to accelerate the speed of planes. Suggestions that speed planes in the future may require jockey-like pilots because of their small size are given little credence by flyers. They point out that the Ideal posture for flying a racing plane 13 a reclining one, and even If fuselages could be greatly reduced, re-duced, there still would be sufficient pilot space and a man's size would make little difference, |