In 1934 Sikorsky stunned the aviation world by building an even better and more luxurious clipper: the S- 42. This time, the nacelles (the engine and propeller housings) were built into the wing so that the wing could be mounted just over the fuselage. The craft still relied on pontoons extending down from each wing for balance in the water, but the entire aircraft was sleeker, which accounted for its cruising speed’s going up to 140 miles per hour (225kph)